Raymond John Butcher

• Ph.D
• Professor at Howard University

Bismuthinite (Bi2S3) nanostructures have garnered significant interest due to their appealing photoresponsivity which has positioned them as an attractive choice for energy conversion applications. However, to utilize their full potential, a simple and economically viable method of preparation is highly desirable. Herein, we present the synthesis a...

Herein, a new tellurium and mercury containing mercuraazametallamacrocycle has been prepared via (2+2) condensation of bis(o‐aminophenyl)telluride and bis(o‐formylphenyl)mercury(II). The isolated bright yellow solid of mercuraazametallamacrocycle has adopted unsymmetrical figure‐of‐eight conformation in the crystal structure. To study the metalloph...

The interaction between CoCl 2 .6H 2 O and mefenamic acid (2-[(2,3-dimethylphenyl)amino]benzoic acid) in the presence of imidazole and pyridine based ligands resulted in the formation of [Co(mef) 2 (imi) 2 ]; C-1 , [Co(mef) 2 (nic) 2 (H 2 O) 2 ].2H 2 O; C-2 , [Co 2 (μ-H 2 O)(μ-mef-O,O') 2 (mef) 2 (py) 4 ].CH 3 CN; C-3 , and [Co 2 (μ-mef-O,O') 4 (ap...

A potassium 4-(pyridyl)-1,3,4-oxadiazole-2-thione was isolated in a basic medium, and its complexes [Cu(en)2(pot)2] (1) and [Zn(en)2(pot)2]HBr·CH3OH (2) containing ethylenediamine (en) as secondary ligand were synthesized and fully characterized. Upon changing the reaction conditions, the Cu(II) complex (1) adopts an octahedral geometry around the...

Isoniazid hydrazones are promising possibilities as medicines since they have preserved efficacy and are less toxic and resistant to resistance than parent Isoniazid (INH). Here, we have synthesized a series of Schiff bases (INH1–9) derived from a clinically approved antitubercular drug Isoniazid (INH). These synthesized ligands have been charac...

The 1,4-di­hydro­pyridine ring of the title compound, C24H29F2NO4, adopts a distorted boat conformation, while the cyclo­hexene ring is in an almost twist-boat conformation. In the crystal, N—H⋯O and C—H⋯O hydrogen bonds as well as C—H⋯π inter­actions connect mol­ecules, forming layers parallel to the (100) plane. These layers are linked by van der...

For the creation of adaptable carbonyl compounds in organic synthesis, the oxidation of alcohols is a crucial step. As a sustainable alternative to the harmful traditional oxidation processes, transition-metal catalysts have recently attracted a lot of interest in acceptorless dehydrogenation reactions of alcohols. Here, using well-defined, air-sta...

Owing to the strict hard/soft dichotomy between the lanthanoids and tellurium atoms, and the strong affinity of lanthanoid ions for high coordination numbers, low‐coordinate, monomeric lanthanoid tellurolate complexes have remained elusive as compared to the lanthanoid complexes with lighter group 16 elements (O, S, and Se). This makes the developm...

Reaction of [PdCl2(dppe)] with two equivalents of the sodium salt of pyridyl selenolate afforded cis configured complex [Pd{2-SeC5H3(5-R)N}2(dppe)] (R = H, Me). The latter complexes on reacting with two equivalent of [NiCl2(dppe)] yielded an edge centered trinuclear complex [Ni3(μ-Se)2(dppe)3]Cl2 (2) and homometallic pentanuclear aggregates of comp...

Two well‐defined novel binuclear cobalt (II) [Co(H2L¹)]2 and [Co(H2L²)]2 compounds are presented. Binuclear cobalt (II) complexes (1–2) containing 1,1′‐binaphthyl derived tetradentate (N2O2) donor ligands H2L¹ and H2L², namely 3,3‐bis[((2,6‐diisopropylphenyl)imino)methyl]‐[1,1′‐binaphthalene‐2,2′‐dioxodicobalt(II) and 3,3′‐bis‐[((2,6‐diethyl‐phenyl...

The crystal structures and Hirshfeld surface analyses of three salts of 1-(4-nitro­phenyl)­piperazine with 2-chloro­benzoic acid, 2-bromo­benzoic acid and 2-iodo­benzoic acid are reported. The chloro­benzoate salt, C10H14N3O2 ⁺·C7H4ClO2 ⁻, contains whole-ion-disordered cations and anions, which were modeled with two equivalent conformations with oc...

Here, two complexes [Mn(Hmpth) 2 (bpy)] ( 1 ) and [Mn(Hmpth) 2 ( o -phen)]( 2 ) with 1-(4-methoxybenzoyl)- 4-phenyl-3-thiosemicarbazide (H 2 mpth) have been synthesized which contains 2-2 � -bipyridine (bpy)/ o - phenanthroline ( o -phen) as co-ligand. The ligand, H 2 mpth and its Mn(II) complexes have been charac- terized by IR, NMR, magnetic beha...

O,O'-Diethyl-S-(N-phthalimidomethyl) dithiophosphate was synthesized and characterized by different spectroscopic methods (UV, IR, ¹H, ¹³C, ³¹P, and ¹⁵N NMR) as well as DTA, TGA, DSC, and ESI techniques and single crystal X-ray diffraction. The compound exhibits fluorescence behavior and can serve as an antimicrobial agent. The crystal structure of...

Three novel Cd (II) metal complexes 1-3 have been synthesized with different derivatives of thiazolines, hydrazides and carbodithioates. These metal complexes are abbreviated as [Cd (tht)2]n, [Cd (Hpph)2]n and [Cd (mpps)2]n along with their respective ligands Htht, H2pph and mpps. The developed metal complexes are characterized using X-ray diffract...

The title compound crystallizes in the monoclinic space group P21 /c with one mol­ecule in the asymmetric unit. In the crystal, (9) chains of C—H⋯O inter­actions are formed, propogating in the c-axis direction. The N—H hydrogen atom forms a strong hydrogen bond with the oxygen atom of a DMSO solvate mol­ecule.

The structures and Hirshfeld surface analysis of three salts of 1-(4-nitro­phenyl)­piperazine are discussed. In 4-(4-nitro­phen­yl)piperazin-1-ium salicylate (C10H14N3O2 ⁺·C7H5O3 ⁻), there are strong hydrogen bonds between cation and anion and the 4-nitro­phenyl substituent occupies an equatorial position in the piperazinium ring. The cation and an...

Reaction of 1,3-propanediamine with copper(II) perchlorate hexahydrate in basic solution in the presence of trimethyl orthoformate and o-iodophenol serendipitously formed sodium [triformato-diperchlorato-di-1,3-propanediaminodicopper(II)], Na[Cu2(HCO2)3(1,3-pn)2](ClO4)2 (1). Single-crystal X-ray diffraction measurements show the compound to be a co...

We report the solvent‐assisted mechanochemically synthesised mononuclear Ni(II) borohydride complex supported by a macrocyclic tetradentate ligand. It was characterised as stable high‐spin [(LMe)Ni(η2‐BH4)]+ cation in solid‐state and solution by various physicochemical methods and capable of transferring hydride. The stoichiometric reactivity of [(...

In the title compound, C23H25F4NO3, the 1,4-di­hydro­pyridine ring adopts a distorted boat conformation, while the cyclo­hexene ring is almost showing a half-chair conformation. In the crystal, inter­molecular N—H⋯O hydrogen bonds connect the mol­ecules into chains with graph-set motif C(6) parallel to the a-axis. These chains are linked together b...

The global burden of cervical cancer is continuously increasing day by day affecting the world population. Wide arrays of agents are prevalent for the treatment of this chronic disease but the survival rates are still limited. The titled compound N-phenyl-5-(pyridin-3-yl)-1,3,4-oxadiazol-2-amine (Pypao) was prepared through the cyclization of nicot...

The crystal structures of three compounds involving amino­py­rimi­dine derivatives are reported, namely, 5-fluoro­cytosinium sul­fan­il­ate–5-fluoro­cytosine–4-aza­niumyl­benzene-1-sulfonate (1/1/1), C4H5FN3O⁺·C6H6NO3S⁻·C4H4FN3O·C6H7NO3S, I, 5-fluoro­cytosine–indole-3-propionic acid (1/1), C4H4FN3O·C11H11NO2, II, and 2,4,6-tri­amino­py­rimi­dinium...

The synthesis and structures of dinuclear palladium complexes with 1,3-benz­imidazolidine-2-thione (bzimtH) and 1,3-imidazoline-2-thione (imtH) are reported, namely, bis­(μ-1H-benzimidazole-2-thiol­ato)-κ²N³:S;κ²S:N³-bis­[cyanido(tri­phenyl­phosphine-κP)palladium(II)], [Pd2(C7H5N2S)2(CN)2(C18H15P)2] or [Pd2(μ-N,S-bzimtH)2(CN)2(PPh3)2] (1), and bis­...

Tetramethyl-(p-tolyl)-hexahydro-1H-xanthene-1,8(2H)-dione (P-TX) was synthesized and characterized experimentally using X-ray diffraction, FT-IR, 1H, 13 C N.M.R. and UV-Vis spectra, and theoretically using DFT calculations. The most stable optimized structure was discovered utilizing the B3LYP/6-311++G(d,p) basis set, followed by FTIR and N.M.R. in...

The one dimensional copper(II) coordination polymer {[Cu(phen)(bpe)(NO3)(H2O)](NO3)(H2O)}n (1) has been synthesized using [Cu(phen)2(NO3)2] (where phen = 1′10-phenanthroline and linker bpe = 1,2-bis-(4-pyridyl) ethane. Complex 1 was characterised by using elemental analysis, IR spectroscopy and single crystal X-ray diffraction analysis. The copper(...

Synthesis, characterization and catalysis of Novel complexes

In the title mol­ecular salt, C6H11N2⁺·Br⁻, the components are linked by N—H⋯Br⋯H—N hydrogen bonds into C(8)chains of alternating cations and anions propagating in the b-axis direction; these chains are cross-linked in the c-axis direction by weak C—H⋯Br hydrogen bonds.

Selenium-derived electrocatalysts have been well explored for electrocatalytic hydrogen evolution reactions to mimic hydrogenase-like activity; however, the stability of these synthetic mimics is yet to be enhanced. In this study, we report the synthesis and characterization of a series of 1,10-phenanthroline-cobalt(II) phenolate selenoether comple...

Metallothioneins (MTs) are a ubiquitous class of small cysteine-rich metal-binding proteins involved in metal homeostasis and detoxification with highly versatile metal binding properties. Despite the long-standing association of MT with M3S3 and M4S5 metal clusters, synthetic complexes with these core architectures are exceptionally rare. Here, we...

The life and career of Jerry P. Jasinski are celebrated in a virtual special issue.

The hydroxy analog of vitamin K3 (2-methylnaphthalene-1,4-dione) is known as phthiocol (2-hydroxy-3-methylnaphthalene-1,4-dione; pht). Both vitamin K3 and phthiocol possess anticancer and antihemorrha-gic properties. Phthiocol is a noninnocent ligand and provides monodentate, bidentate, or tridentate coordination sites to metal ions. A series of tr...

Two new complexes of Mn(II) have been synthesized with a non-steroidal anti-inflammatory drug, mefenamic acid, 2-[(2,3-dimethylphenyl)amino]benzoic acid (mef) and the nitrogen donor ligands; imidazole (imi) and 2-methylimidazole (mei), viz. [Mn(mef) 2 (imi) 2 (EtOH) 2 ]; M−1 and [Mn(mef) 2 (mei) 2 (EtOH) 2 ]; M−2. Also, when mefenamic acid interact...

The title compound, C29H25N3O3S, crystallizes in the monoclinic space group P21/n. The mol­ecule contains a central four-ring system in which all of the rings are almost coplanar. Both the 4-meth­oxy­phenyl ring and the prop-2-yn­yloxy substituent are disordered over two equivalent conformations with occupancy ratios of 0.903 (2):0.097 (2) and 0.77...

The title compound of overall stoichiometry, C12H32N4²⁺·2C18HBF15O⁻·2.5C6H6, crystallizes in the triclinic space group P and the stoichiometry of the asymmetric unit consists of two [C12H32N4]²⁺ dications, two [C18HBF15O]⁻ anions, and 2.5 mol­ecules of benzene as solvate. The dications are both at half occupancy and located on a center of inversion...

The strongly chelated luminescent LnIII-based optical probes: [Ln(dipicOH)3]³⁻ [Ln = EuIII (1), TbIII (2)] decorated with multiple reactive peripheral hydroxyl groups were strategically designed for the selective detection of diethyl chlorophosphate (DCP), a simulant of sarin (GB) nerve agent. Their reaction results in the modulation of antenna eff...

Installation of in situ generated arylselenide (ArSe⁻) on 2-methyl napthalene afforded the following selenoethers: 2-C10H7CH2Se(C6H5), 2-C10H7CH2Se(p-CH3C6H5), 2-C10H7CH2Se(1-C10H7) and 2-C10H7CH2Se(2,4,6-Me3C6H2), as yellow crystalline solids. These molecules can be prepared by the treatment of in situ generated arylselenide with 2-C10H7CH2Br in e...

The Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) complexes of Henna; 2-hydroxy-1,4-naphthoquinone (Lw) are synthesized at 0°C (Mn²⁺; 1, Co²⁺; 2, Ni²⁺; 3, Cu²⁺; 4 and Zn²⁺; 5), 26 °C (Mn²⁺; 1A, Co²⁺; 2A, Ni²⁺; 3A, Cu²⁺; 4A and Zn²⁺; 5A) and characterized. The compositions of all complexes are of the type [M(Lw)2(H2O)2]. The geometry of the complexes sy...

Treatment of [PdCl2(dppe)] with one equivalent of thiourea yielded a partially substituted complex [PdCl(dppe){SC(NH2)2}]Cl (1a) whereas the compound [Pd(dppe){SC(NH2)2}2]²⁺ (1b) was obtained on performing the same reaction with two equivalents of thiourea. The reaction between [PdCl2(dppe)] and two equivalents of the sodium salt of 4,6-dimethyl py...

In the title compound, C28H22FN3OS, four rings are almost coplanar, with the fluorophenyl ring substantially twisted. In the extended structure, aromatic π–π stacking inter­actions between the pyrazole ring and the tolyl ring link the mol­ecules into centrosymmetric dimers.

Amino-N-cyclopropyl-5-heptylthiophene-3-carboxamide (ACPHTC) and its functional derivatives were synthesized and analyzed via single-crystal X-ray diffraction at 296 K, ¹H,¹³C NMR, UV–Vis, FT-IR, and ESI-MS spectral analysis. ACPHTC crystallizes in a tetragonal crystal system, space group I-4 with Z = 16 and the following unit cell dimensions: a =...

Download PDF Download PDF Original Paper Published: 13 October 2022 Synthesis, Characterizations, Crystal Structure, DFT, and Hirshfeld Surface Analysis of 4-Cyclohexyl-1-(thiophene-2-carbonyl)thiosemicarbazide Shivendra Kumar Pandey, Seema Gupta, …R. J. Butcher Show authors Journal of Chemical Crystallography (2022)Cite this article Metricsdetail...

The structure of the title compound, C18H13NO4, shows that the whole mol­ecule is almost planar but with a dihedral angle between the two phenyl rings of 19.22 (5)°. The mol­ecules are linked by C—H⋯O inter­actions, forming sheets in the (21) plane.

9-(4-hydroxyphenyl-tetramethyl-hexahydro-1H-xanthene-1,8(2H)-dione (OH-X) was synthesized and characterized experimentally using X-ray diffraction, FT-IR, 1H, 13 C NMR, and UV-Vis spectra, and theoretically using DFT calculations. To look at stability, different physicochemical properties have been compared. The most stable optimized structure was...

In the title compound, C18H16N2O2, the phenyl and pyrazole rings subtend a dihedral angle of 22.68 (8)°. The packing of the title compound features aromatic π–π stacking and weak C—H⋯π inter­actions.

In a recent study, TiO2 nanorod electrodes were prepared by the hydrothermal approach followed by calcination at various temperatures from 300 to 600 °C. The effects of calcination temperature on the morphological and structural properties were investigated. The novel analogue of aminonaphthoquinone(2R-(n-alkylamino)-1,4-naphthoquinone) photosensit...

Herein we report a hydrogen-bonded three-dimensional superstar network originated from a single source precursor, sym-triisopropylaminotriazine that is both donor and acceptor of hydrogen bonds. The C3h symmetric design allowed the formation of intermolecular hydrogen-bonds leading to helices in all three directions. The eccentric Piedfort units pr...

Eleven (4-phen­yl)piperazinium salts containing organic anions have been prepared and structurally characterized, namely, 4-phenyl­piperazin-1-ium 4-fluoro­benzoate monohydrate, C10H15N2⁺·C7H4FO2⁻·H2O, 1; 4-phenyl­piperazin-1-ium 4-bromo­benzoate monohydrate, C10H15N2⁺·C7H4BrO2⁻·H2O, 3; 4-phenyl­piperazin-1-ium 4-iodo­benzoate, C10H15N2⁺·C7H4IO2⁻,...

Three uranyl acylpyrazolone complexes [UO2(PCBPMP)2(CH3CH2OH)] (complex I), [UO2(PCBMCPMP)2(CH3CH2OH)] (complex II), and [UO2(PCBPTMP)2(CH3CH2OH)] (complex III) were synthesized from σ-donating acypyrazolone ligands to analyze their sequence of covalent characteristics, reactivity, and redox properties (PCBPMP: p-chlorobenzoyl 1-phenyl 3-methyl 5-p...

The title compound, C10H13NO2, crystallizes with two mol­ecules (A and B) in the asymmetric unit. For A, the dihedral angle between the plane of the phenyl ring and the i-propyl substituent is 65.4 (3)° while for B this angle is 67.8 (3)°. In the crystal, the mol­ecules are linked by N—H⋯O and N—H⋯N hydrogen bonds to generate double chains propagat...

By a new sustainable strategy, sulfur dioxide (SO 2) was converted at room temperature into sulfuric acid by taking advantage of the spontaneous aerial oxidation of benzothiazoline into benzothiazole. 2-(4-Methoxyphenyl)benzothiazoline (HL) was reacted with SO 2 at room temperature, and the adduct upon reaction with aerial oxygen produced 2-(4-meth...

Reported are multi-component one-pot syntheses of chiral complexes [M(L R OR')Cl 2 ]o r[ M(L R SR')Cl 2 ]f rom the mixture of an N-substituted ethylenediamine, pyridine-2-car-boxaldehyde, ap rimary alcohol or thiol and MCl 2 utilizing in-situ formed cyclized Schiff bases where aC ÀOb ond, two stereocenters, and three CÀNb onds are formed (M = Zn, C...

Dedicated to Professor Jan Reedijk on the occasion of his 75th birthday. A group of symmetrically-trisubstituted-1,3,5-triazine-based molecules have been studied extensively in order to create Piedfort pairs that are intended to be employed in sequestra-tion of small molecules. Extensive inter and intramolecular interactions observed in the solid-s...

Two new copper(II) complexes [Cu(L¹)2(NO3)]NO31 and [Cu(L²)(H2O)2](NO3)22(L¹ = 2(2-pyridyl)benzimidazole and L² = 2-benzoylpyridine) have been prepared and characterized by elemental and spectral (UV–visible, FTIR and epr) techniques. Crystal structures of these complexes were determined using single crystal X-ray diffraction analysis. The low valu...

A 2-amino-1H-benzo [de]isoquinoline-1,3-(2H)dione ligand (L) has been synthesized which forms a supramolecular metal-organic framework with various copper(Ⅱ) salts (1-3). The supramolecular structures are formed by a combination of covalent and noncovalent forces. The ligand (L) with copper chloride forms step-like chains in which the ligand is coo...

New vanadium Schiff base complexes [VO2(L)]ImH 1 and [VO2(L)]m-ImH 2 (where L = (Z)-N'-(2-hydroxy-3-methoxybenzylidene)acetohydrazide, ImH = Imidazole and m-ImH = methylimidazole) were prepared. These were characterized using various techniques and structures were determined using single-crystal X-ray diffraction analysis. In these complexes, the t...

The metathesis reaction of aryltellurium chloride, ppyTeCl [ppy=2‐(2’‐pyridyl)phenyl] (5) with AgClO4 afforded Intramolecular Chalcogen Bonding (IChB)‐stabilized organotellurenyl cation [ppyTe] ⋅ ClO4 ([6] ⋅ ClO4). The reaction of [6] ⋅ ClO4 with K2PtCl4 in acetic acid resulted in the formation of platinum(II)‐based carboxylate‐bridged heterobimeta...

A novel 1,8-naphthalimide containing ligand (L) and its three mononuclear complexes with different anions, [Cu(L)2](NO3).3(H2O) (1), [Cu(L)2]Cl.4(H2O) (2), [Cu(L)2]ClO4.DMF (3) was synthesized and characterized by NMR, infrared spectroscopy, elemental analysis, ESI-MS and single crystal X-ray crystallography. Single-crystal diffraction analysis of...

Several new copper(II) mono- and binuclear complexes, [Cu(HL)(ClO4)(H2O)]CH3OH (1), [Cu(HL)(DMF)](ClO4)CH3OH (2), [Cu2(HL)2(pyrazine)](ClO4)2 (3) and [Cu2(HL)2(4,4-bipy)(ClO4)2]2H2O (4) (HL = 4-bromo-2-(pyridine-2-ylhydrazonomethyl)-phenol, 4,4-bipy = 4,4-bipyridyl) have been synthesized and characterized by elemental analysis, FTIR, UV–vis and ele...

The amine−aldehyde−acetylene (A³) coupling yielding propargylamines was successfully catalyzed by a series of neutral silver and gold complexes, [2,6-bis-(1-(1S)-menthyl-3-methylene-imidazol-2-ylidene)-pyridine]M2Cl2 [M = Ag (2), Au (3)], and cationic palladium and nickel complexes {[2,6-bis-(1-(1S)-menthyl-3-methylene-imidazol-2-ylidene)-pyridine]...

The crystal structure of the thiosemicarbazide derivative 4-cyclohexyl-1-(thiophene-2-carbonyl)thiosemicarbazide (ChtcTSC), C 12 H 17 N 3 OS 2 , is reported here. The title compound ChtcTSC has been characterized by various physicochemical techniques viz UV-vis., Infrared, and NMR. It crystallizes in the monoclinic system having space group P 2 1 /...

The title compound, C29H33NO3, crystallizes with three mol­ecules (A, B and C) in the asymmetric unit. They differ in the twist of the phenyl and benzene rings of the 1,1′-biphenyl ring with respect to the plane of the 1,4-di­hydro­pyridine ring. In all three mol­ecules, the 1,4-di­hydro­pyridine ring adopts a distorted boat conformation. The cyclo...

A new compound 2-(4-methoxyphenyl)-5-(2-pyridyl)-1,3,4-thiadiazole (Mppth) has been synthesized and characterized with the aid of IR, NMR, and single-crystal X-ray diffraction techniques. During the reaction, the substituted thiohydrazide got cyclized into the corresponding thiadiazole (Mppth) in the presence of zinc(II) nitrate via loss of H2O. Th...

The synthesis and crystal structures of a 9-(2,4-dichlorophenyl)-4a-hydroxy-tetramethyl-octahydro-1H-xanthene-1,8(2H)-dione are described (DCX). Single crystal X-ray diffraction was used to investigate the crystal, and the most stable optimised structure was identified using the B3LYP/6-311++G(d,p) basis set, followed by FTIR and NMR analysis. The...

In this work, syntheses of Schiff-base ligand, N-2-(6-methylpyridyl)-2-hydroxy-1-naphthaldimine (1) and its hitherto unknown chelate with a Ni(II) salt, bis[N-2-(6-methylpyridyl)-2-oxo-1-naphthaldimnato-k³N^N^O] nickel(II) (2) have been reported and characterized by spectral techniques (IR, ¹H NMR, Mass). Solid state structures and non-covalent int...

A series of N(4) thiomorpholinyl isatin/5-haloisatin thiosemicarbazones and their copper(II) complexes (1-8) were prepared and characterized by elemental analysis, NMR, IR, ESI-HRMS, UV-Visible, EPR, TGA, PXRD, and single-crystal X-ray diffraction studies. The copper(II) complexes possess distorted square planar geometry. The single-crystal X-ray s...

The synthesis of a HQ derivative using a one-pot multicomponent synthesis is reported. Single crystal X-Ray diffraction at 293 K was used to characterize the material, which was then investigated theoretically using the DFT method. The 3 D Hirshfeld surface and 2 D fingerprint plots were created and linked with the XRD results to elucidate intermol...

A BOPHY-based organotellurium-containing probe was synthesized and characterized via single crystal XRD for the selective and sensitive detection of Hg2+ over other metal ions. The probe detects Hg2+ in less than 1 s with a 2.5-fold enhancement in fluorescent intensity. Due to the chalcogenophilicity of mercury, Hg2+ was facilely trapped in the NTe...

Selenium-coumarin based probe 4 was synthesized from the reaction of a bromo derivative of coumarin with in situ prepared sodium phenyl selenide. Esterification of probe 4 resulted in the formation of probe 5. In the single crystal X-ray structure of probe 4, the phenylselenide group was placed parallel to the coumarin moiety whereas in probe 5, th...

The synthesis and crystal structure of pyridine-3-carbaldehyde-N-ethylthiosemicarbazone (3-pytscH-NHEt) 1, and its CuI complex of stoichiometry, [CuCl(3-pytscH-NHEt)(PPh3)2] 2, studied using single crystal X-ray crystallography, are reported in this paper. Crystal data: 1, monoclinic, P21/n, a = 6.6322(3), b = 21.1200(8), c = 7.2989(3) Å; β = 91.88...

A σ-donating acylpyrazolone DMBPMP (4-(3,5-dimethyl benzoyl) 1-phenyl 3-methyl 5-pyrazolone) ligand and its Uranyl acylpyrazolone complex [UO2(DMBPMP)2(EtOH)] were synthesized to analyze the nature of covalency, reactivity, and redox properties. The structure, pentavalent bipyramidal geometry, and complex composition are mainly scrutinized through...

The structure of a mono-amine PdII complex, [PdCl2(C7H9N)(C12H11NS)], which crystallizes in the triclinic space group, P, is reported. The primary geometry around the PdII atom closely resembles square planar (τ4′ = 0.069). In the (E)-1-(thio­phen-2-yl)-N-(p-tol­yl)methanimine ligand, the phenyl and thio­phene rings are not coplanar, subtending a d...

The reaction of [Cu(CH3CN)4](BF4) with 1-methyl-1,3-imidazolidine-2-thione {SC3H4(NMe)NH}, under aerobic conditions at room temperature, yielded an unusual one-dimensional coordination polymer, namely, catena-poly[[[(1-meth­yl-1,3-imidazolidine-2-thione-κS)copper(I)]-μ-(1-methyl-1,3-imidazolidine-2-thione)-κ²S:S-copper(I)-μ-[3,3′-(sulfanedi­yl)bis­...

Introduction An efficient synthesis of hexakis(alkylthio/selenomethyl)benzenes [(RSCH2)6C6 and (RSeCH2)6C6] (1-14) (where, R= nPr, iPr, nBu, iBu, sBu, tBu, nPent, iPent, and 2-Methyl-1-butyl) by the reaction of hexakis(bromomethyl)benzene with alkylthio or alkylseleno (RS-/RSe-) anions are demonstrated. Methods They have been characterized by phys...

In the current research we tried to isolate unsymmetrical Schiff base bearing bis-aryl tellurium dichloride by the treatment of 1-(thiophen-2-yl)-N-(p-tolyl)methanimine with anisyltellurium trichloride in carbon tetrachloride solvent at 80ºC. However, we are unable to isolate our desired compounds due to decomposition takes place along with telluri...

The development of a potent metallodrug to prevent the progression of cancer is needed urgently. Here, three new complexes [Mn(pfth)2(o-phen)] (1), [Co(pfth)2(en)] (2) and [Ni(pfth)2(en)] (3) based on 4-phenyl-(2-furoyl)-thiosemicarbazide (Hpfth) ligand containing 1,10 phenanthroline (o-phen)/ethylenediamine (en) as secondary ligands have been synt...

Mononuclear uranyl(VI) Schiff base complexes of formula [UO2(L1)]·py (1·py) {[UO2(L²)]}2·MeCN·H2O (2·MeCN·H2O) have been prepared and characterized by both IR and ¹H NMR spectroscopy and X-ray crystallography. The complex species 1·py crystallizes as orange needle-like crystals in the orthorhombic space group, Pbca, with 8 molecules per unit cell....

Three Cu(II) complexes of 1,1,1-trifluoroacetylacetonate, viz. [Cu(TFACAC)2(MeOH)] (1), [Cu(TFACAC)2(py)] (2) and [Cu(TFACAC)2(DABCO)] (3) were synthesized and characterized by elemental analysis, IR, UV–Visible spectroscopy and cyclic voltammetry. Structures of complexes 1–3 were established by single crystal X-ray diffraction wherein 1 and 2 adap...

Six copper(II) complexes of 3-hydroxy-4-(hydroxylamine)naphthalene-1(4H)-one; (1) (in Cu-1; [Cu(1)2] and Cu-2;(Py⁺)[Cu(1)2], 3-hydroxy-4-(hydroxylamine)-2-methylnaphthalen-1(4H)-one; (2) (in Cu-3; [Cu(2)2] and Cu-4; (Py⁺)2[Cu4(2)8]) and 2-chloro-3-hydroxy-4-(hydroxylamine)naphthalene-1(4H)-one(3) (in Cu-5; [Cu(3)2] and Cu-6;[Cu(3)2] (Py) and their...

Elemental Te inserts across the C–I bond of in situ generated iodo derivatives of 1,3-dibromopropane, (trimethylsilyl)methyl iodide, benzyl chloride and m-nitro-benzyl bromide to give rise the , (Me3SiCH2)2TeI2, (C6H5CH2)2TeI2, and (m-NO2-C6H4CH2)2TeI2 molecules in good yield respectively. These molecules are characterised by ¹H NMR and elemental a...

e goal of this study was to identify new compounds from a methanol extract of a polyherbal combination of Aristolochia indica L. and Piper nigrum L. (MECAIPN), two traditional medicinal plants used to cure envenomation, as well as to assess their antioxidant and antivenom properties. MECAIPN yielded EA1 (an essential oil), AA2 (4-(2-oxo-propyl)-cyc...

With association of acylpyrazolones and benzhydrazide, two novel Ligands BZ-PCBMCPMP ((Z)-N'-((4-chlorophenyl) (1-(3-chlorophenyl) 3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene) methyl) benzohydrazide) and BZ-PCBPMP ((Z)-N'-((4-chlorophenyl) (1-phenyl) 3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene) methyl) benzohydrazide)) with different O–N–O...

A new metal–organic precursor for the chemical vapor deposition of zinc oxide thin films, [Zn(C9H16NO3)2], has been synthesized and characterized by ¹H and ¹³C NMR spectroscopy, single-crystal X-ray diffraction and thermogravimetric analysis. The asymmetric unit of the title compound consists of two mol­ecules (Z′ = 2), with different zinc coordina...

Chloride (2), trifluoroacetate (3) and sulphate (4) salts of (S)-1-(benzylselanyl)-3-phenylpropan-2-amine (1) were synthesized and characterized by spectroscopic (¹H, ¹³C{¹H} and ¹⁹F NMR, FT-IR), elemental and polarimetric analysis. The structures of 2 and 3 were determined by single crystal X-ray diffraction analysis. The C–N and C-Se bond lengths...