Debajit Sarma

Debajit Sarma
Northwestern University | NU · Department of Chemistry

PhD

About

32
Publications
6,599
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2,229
Citations
Citations since 2016
13 Research Items
1889 Citations
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300

Publications

Publications (32)
Article
Full-text available
Perovskite solar cells have revolutionized the fabrication of solution-processable solar cells. The presence of lead in the devices makes this technology less attractive, and alternative metals in perovskites are being researched as suitable alternatives. We demonstrate a new type of tin-based perovskite absorber that incorporates both ethylenediam...
Article
Full-text available
We report a new microporous metal-organic framework (MOF) H16[Zr6O16(H2PATP)4]Cl8∙xH2O (H2PATP =2-((pyridin-1-ium-2-ylmethyl)ammonio)terephthalate), denoted as MOR-2 (metal organic resin-2). MOR-2 represents the first Zr4+-terephthalate MOF with an 8-connected net and also the first example where a bulky functional group was intoduced into the tere...
Article
Pb2BiS2I3 (I), Sn2BiS2I3 (II), and Sn2BiSI5 (III) are prepared by solid state reaction of stoichiometric amounts of PbS and BiI3 for (I) (silica tube, 500 °C, 72 h; ≈90% yield) and from a 2:1:2:3.15 molar mixture of Sn, Bi, S, and I2 for mainly (II) and minor amounts of (III) (evacuated silica tubes, 500 °C, 24 h).
Article
Full-text available
Heavy metal ions (Cd²⁺, Hg²⁺, As³⁺ and Pb²⁺) are an important contributor to the contamination of groundwater and other water bodies in and around industrial areas. Herein, we demonstrate the rapid and efficient capacity of a layered metal sulfide material, K2xSn4-xS8-x (x = 0.65-1, KTS-3) for heavy metal ion removal from water. The effect of conce...
Article
Chalcogels are a new class of aerogel materials with diverse properties relevant to catalysis, ion-exchange, and gas adsorption. We report the synthesis of high-surface-area antimony sulfide chalcogels through the sol-gel process followed by supercritical drying. Four different synthetic routes were employed: (1) hydrolysis of sodium thioantimonite...
Article
New quaternary thioiodides Pb2BiS2I3, Sn2BiS2I3, and Sn2BiSI5 have been synthesized by isothermal heating as well as chemical vapor transport. Pb2BiS2I3 and Sn2BiS2I3 crystallize in the space group, Cmcm, with unit cell parameters a = 4.3214 (9), b = 14.258 (3), and c = 16.488 (3) Å; a = 4.2890 (6), b = 14.121(2), and c = 16.414 (3) Å, respectively...
Article
Uranium is a principal element in nuclear fuel cycles but possesses high chemical toxicity and radioactivity. It is of vital importance to remove uranium from aqueous waste solutions for further treatment and disposal. Herein we present the first chalcogenide example, (Me2NH2)4/3(Me3NH)2/3Sn3S7·1.25H2O (FJSM-SnS), in which organic amine cations can...
Article
H3O]3[Heta]4.2 [H2dpp]0.3 [In4Sn16O10S32] ·33H2O is prepared by heating a 10:3:3:3 molar mixture of S, SnCl2·2H2O, In(NO3)3, and 1,3-di(4-pyridyl)propane (dpp) in ethanolamine (eta) (autoclave, 160 °C, 7 d; 25% yield).
Article
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Many efforts have focused on the sequestration and immobilization of 99Tc because the radionuclide is highly mobile in oxidizing environments and presents serious health risks due to its radiotoxicity and long half-life (t1/2 = 213 000 a). One of the more common methods for Tc removal from solution and immobilization in solids is based on reducing...
Article
The new ion-exchange oxy-sulfide material has a three-dimensional open-framework comprising the pseudo-T4 supertetrahedral [In4Sn16O10S34]12-]12-cluster. This material has large pores and is a fast ion-exchanger. It exhibits high selectivity in sequestering heavy metal ions from aqueous solutions including solutions containing heavy concen-trations...
Article
Full-text available
Correction for ‘Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin–alginic acid composite’ by Sofia Rapti et al., Chem. Sci., 2016, DOI: 10.1039/c5sc03732h.
Article
We describe a new synthetic method for the isolation of the UiO-66 amino-functionalized material (called as metal organic resin-1, MOR-1) and its composite with alginic acid (HA). MOR-1 can be prepared in high yield (~70%) and purity within an hour via a reflux reaction of ZrCl4 and 2-amino-terephthalic acid in acifidied aqueous solution, whereas a...
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Full-text available
We report an anion exchange composite material based on a protonated amine-functionalized metal–organic framework, denoted Metal Organic Resin-1 (MOR-1), and alginic acid (HA). MOR-1–HA material shows an exceptional capability to rapidly and selectively sorb Cr(VI) under a variety of conditions and in the presence of several competitive ions. The s...
Article
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The fission of uranium produces radionuclides, 137Cs and 90Sr, which are major constituents of spent nuclear fuel. The half-life of 137Cs and 90Sr is nearly 30 years and thus that makes them harmful to human life and the environment. The selective removal of these radionuclides in the presence of high salt concentrations from industrial nuclear was...
Article
We report the synthesis of ion-exchangeable molyb-denum-sulfide chalcogel through an oxidative coupling process, using (NH4)2MoS4 and iodine. After supercritical drying the MoSx amorphous aerogel, appears spongy and shows large surface areas up to 370 m(2)/g, with broad range of pore sizes. X-ray photoelectron spectroscopic and pair distribution fu...
Article
Iodine (129I and 131I) is one of the radionuclides released in nuclear fuel reprocessing and poses risk to public safety due to its involvement in human metabolic processes. In order to prevent the release of hazardous radioactive iodine into the environment, its effective capture and sequestration is pivotal. In the context of finding a suitable m...
Article
We describe the synthesis, crystal structures, and optical absorption spectra of transition metal-substituted spiroffite derivatives, Zn2-xMxTe3O8 (M(II) = Co, Ni, Cu; 0 < x ≤ 1.0). The oxides are readily synthesized by solid state reaction of stoichiometric mixtures of the constituent binaries at 620 °C. Reitveld refinement of the crystal structur...
Article
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A purple inorganic pigment, YGa1−xMnxO3 (0 < x ≤ 0.10), based on hexagonal YGaO3 is reported here. The metastable series of oxides were prepared by a sol–gel technique where the dried gels, obtained from aqueous solutions of metal nitrate–citric acid mixtures, were calcined for a short duration in a preheated furnace around 850 °C. The purple colou...
Article
Full-text available
Herein, a new aromatic carboxylate ligand, namely, 4-(dipyridin-2-yl)aminobenzoic acid (HL), has been designed and employed for the construction of a series of lanthanide complexes (Eu(3+) = 1, Tb(3+) = 2, and Gd(3+) = 3). Complexes of 1 and 2 were structurally authenticated by single-crystal X-ray diffraction and were found to exist as infinite 1D...
Article
The metal organic frameworks (MOFs) have evolved to be an important family and a corner stone for research in the area of inorganic chemistry. The progress made since 2000 has attracted researchers from other disciplines to actively engage themselves in this area. This cooperative synergy of different scientific believes have provided important edg...
Article
A hydrothermal reaction of cobalt nitrate, 4,4'-oxybis(benzoic acid) (OBA), 1,2,4-triazole, and NaOH gave rise to a deep purple colored compound [Co(4)(triazolate)(2)(OBA)(3)], I, possessing Co(4) clusters. The Co(4) clusters are connected together through the tirazolate moieties forming a two-dimensional layer that closely resembles the TiS(2) lay...
Article
A hydrothermal reaction of a mixture of cobalt salt, 5-nitro isophthalic acid and triazole (compound I), 3-aminotriazole (3-AT) (compound II) and 3,5-diaminotriazole (compound III) at 220 °C for a day resulted in the isolation of three different, but related, compounds containing cobalt clusters. The three-dimensional compounds have Co(5) (compound...
Article
Two copper-containing compounds [Cu3(μ3-OH)2(H2O)2{(SO3)-C6H3-(COO)2}(CH3COO)], I, and [Cu5(μ3-OH)2(H2O)6{(NO2)-C6H3-(COO)2}4]·5H2O, II, were prepared using sulphoisophthalic and nitroisophthalic acids. The removal of the coordinated water molecules in the compounds was investigated using in situ single crystal to single crystal (SCSC) transformati...
Article
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A reaction of copper acetate, 5-nitroisophthalic acid in a water-methanol mixture under solvothermal condition results in a new metal-organic framework compound, [Cu 5(μ 3-OH) 2(H 2O) 6{(NO 2)-C 6H 3-(COO) 2} 4].5H 2O, (1). The compound contains Cu 5 pentameric cluster units connected by 5-nitro isophthalate (NIPA) moieties forming a CdCl 2-like la...
Article
A high-throughput screening was employed to identify new compounds in Cu(CH3COO)2·H2O−NIPA−heterocyclic ligand systems. Of the compounds identified, three compounds, [Cu3{(NO2)−C6H3−(COO)2}3(C3N6H6)] (I), [Cu2(μ3-OH)(H2O){(NO2)−C6H3−(COO)2}(CN4H)]·(H2O) (II), and [Cu2(μ3-OH)(H2O){(NO2)−C6H3−(COO)2}(CN5H2)]·2(H2O) (III), have been isolated as good q...
Article
Full-text available
A hydrothermal reaction of Mn(OAc)(2)·4H(2)O, Co(OAc)(2)·4H(2)O and 1,2,4 benzenetricarboxylic acid at 220 °C for 24 h gives rise to a mixed metal MOF compound, [CoMn(2){C(6)H(3)(COO)(3)}(2)], I. The structure is formed by the connectivity between octahedral CoO(6) and trigonal prism MnO(6) units connected through their vertices forming a Kagome la...
Article
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Layered lanthanide sulfate compounds with three different structures have been prepared and characterized. The compounds [C10H10N2][La(SO4)2]·2H2O (I), [C10H10N2][La(SO4)2(H2O)2]2 (IIa), [C10H10N2][Pr(SO4)2(H2O)2]2 (IIb), [C10H10N2][Nd2(SO4)4(H2O)2]2 (IIIa), [C10H10N2][Sm2(SO4)4(H2O)2]2 (IIIb), and [C10H10N2][Eu2(SO4)4(H2O)2]2 (IIIc) have anionic l...
Article
A hydrothermal reaction of the acetate salts of the rare-earths, 5-aminoisophthalic acid (H(2)AIP), and NaOH at 150 degrees C for 3 days gave rise to a new family of three-dimensional rare-earth aminoisophthalates, M(mu(2)-OH)(C8H5NO4)] M = Y3+ (I), La3+ (II), Pr3+ (III), Nd3+ (IV), Sm3+ (V), Eu3+ (VI), Gd3+ (VII), Dy3+ (VIII), and Er3+ (IX)]. The...
Article
A hydrothermal reaction of the acetate salts of the rare-earths, 5-aminoisophthalic acid (H 2 AIP), and NaOH at 150 °C for 3 days gave rise to a new family of three-dimensional rare-earth aminoisophthalates, [M(µ 2 -OH)(C 8 H 5 NO 4)] [M = Y 3+ (I), La 3+ (II), Pr 3+ (III), Nd 3+ (IV), Sm 3+ (V), Eu 3+ (VI), Gd 3+ (VII), Dy 3+ (VIII), and Er 3+ (IX...
Article
Full-text available
The article describes the synthesis, structure and magnetic investigations of a series of metal-organic framework compounds formed with Mn+2 and Ni+2 ions. The structures, determined using the single crystal X-ray diffraction, indicated that the structures possess two- and three-dimensional structures with magnetically active dimers, tetramers, cha...
Article
Four new 5-aminoisophthalates of cobalt and nickel have been prepared employing hydro/solvothermal methods: [Co(2)(C(8)H(5)NO(4))(2)(C(4)H(4)N(2))(H(2)O)(2)].3H(2)O (I), [Ni(2)(C(8)H(5)NO(4))(2)(C(4)H(4)N(2))(H(2)O)(2)].3H(2)O (II), [Co(2)(H(2)O)(mu(3)-OH)(2)(C(8)H(5)NO(4))] (III), and [Ni(2)(H(2)O)(mu(3)-OH)(2)(C(8)H(5)NO(4))] (IV). Compounds I an...

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