Nurcan Acar

Ankara University · Department of Chemistry

Bir ONNO tipi Schiff bazı olan bis-N;N'(salisiliden)-1,3-propandiamin (LH2) ve ONO tipi Schiff bazı olan N(2-hidroksi)salisillaldimin (SAPH2) kullanılarak beş farklı Nikel (II) kompleksi NH3 veya amin varlığında hazırlandı ve bu komplekslerin havada termal bozunması ile NiO nanoparçacıkları elde edildi. Hazırlanan kompleksler ve Schiff bazları, ele...

A series of new ferrocenyldithiophosphonato complexes of Cd(II) and Hg(II) ions were synthesized and characterized by spectroscopic methods. The antiproliferative activities of the ligands and their Cd(II) complexes were screened against four human cell lines using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) method. While the...

NiL.MX2 heterodinuclear complexes with a nuclear structure of NiII-MII (M = Zn, Cd, X = Cl, Br, I) were prepared in the dioxane medium by the use of an ONNO type ligand, Bis-N,N′(salicylidene)-1,3-propanediamine (LH2). The complexes prepared were characterized by the use of infrared (IR) spectroscopy, thermogravimetry (TG), semi-micro nitrogen, met...

New 1:1 energetic co-crystals formed between Picric acid, Trinitrotoluene and 9-Vinylanthracene were prepared by a solvent evaporation method. The structures of the co-crystals were determined and characterized via single-crystal and powder X-ray diffraction techniques, infrared spectroscopy and thermal analysis (DSC, TG). X-ray diffraction results...

New Cd(II) and Hg(II) complexes of five previously known dithiophosphonic acids ((p- MeO-C6H4)PS(SH)(OR), HLn, (n= 1-5); R= 3-pentyl-, HL1; R=1-phenyl-1-propyl-, HL2; R= 4-tertbutylbenzyl-, HL3; R= diphenylmethyl-, HL4; R= 4-tert-butylcyclohexyl-, HL5) were prepared and characterized. To do this, the dithiophosphonic acids involved were treated wit...

2-Kloro-3,5-dinitropiridin, hidrazin ve 3-amimopirazol ile tepkimeye sokuldu ve iki yeni azotça zengin enerjik madde elde edildi, N(3,5-dinitropiridin-2-yl) hidrazin (I), ve N(3,5-dinitropiridin-2-yl),3-aminopirazol (II). Bu maddeler, element analizi, kütle spektroskopi, IR spektroskopi, 1HNMR ve 13CNMR yöntemleri ile karakterize edildi. Bu maddele...

2-Chloro-3 and 5-dinitropyridine were put into reaction with hydrazine and 3-aminopyrazole to obtain two new highly nitrogenous energetic substances. These energetic substances are; N(3,5-dinitropyridyn-2-yl) hydrazine (I), and N(3,5- dinitropyridyn-2-yl)3-aminopyrazole (II). These substances were characterized with element analysis, mass spectrosc...

Four known dithiophosphinic acids, DTPA, were synthesized and their zinc complexes were newly prepared. The complexes have been proven to have the structures [Zn(µ-DTPAⁿ)2(DTPAⁿ)2], ([DTPAⁿ]= Rⁿ(R)P(S)H, R= 4-CH3O-C6H4-; R¹= iso-amyl-, DTPA¹; R²= iso-butyl-, DTPA²; R³= sec-butyl-, DTPA³; R⁴= iso-propyl-, DTPA⁴). The DTPAs were prepared by the react...

Two NNN type ligands namely bis-2,6-(pyrazol-1-yl) pyridyne (pp) and bis-2,6-(3,5-dimethyl-pyrazol-1-yl) pyridyne (dmpp) were prepared by the use of 2,6-dichloropyridine, pyrazol and 3,5-dimethylpyrazol. Using these ligands with SCN co-ligand two mononuclear Cu(II) complexes were synthesized and characterized. The complexes were investigated by the...

In this study, a mononuclear CuL complex was prepared by the use of bis-N,N′-(salicylidene)-1, 3-propanediamine (LH2) and Cu²⁺ ion. NiCl2 and NiBr2 salt were treated with this complex in dioxanewater medium and two new complexes [(CuL)2NiCl2(H2O)2] and [(CuL)2NiBr2(H2O)2)] with Cu(II)–Ni(II)–Cu(II) nucleus structure were obtained. In addition to th...

Çok çekirdekli koordinasyon bileşiklerinin ortaya çıkması 1970’li yılların başında olmuştur. 1960’lı yılların başında bazı koordinasyon bileşiklerinde ölçülen anormal magnetik süsseptibilite ölçümlerinin sebebi araştırılırken birçok koordinasyon bileşiğinde oksijen veya klor gibi donör atomların µ- köprüsü ile birbirine bağlandığı ve çok çekirdekli...

By using bis-N,N′(salicylidene)-1,3-diaminopropane and reduced form of this ligand bis-N,N′(2-hydroxybenzylidene)-1,3-diaminopropane, we prepared eight trinuclear complexes in the core form of NiII–NiII–NiII and NiII–CuII–NiII. Complexes have been characterized with element analysis, IR spectroscopy and NMR spectroscopy methods and also investigate...

In this study a mononuclear CuL complex was prepared by the use of Bis-N, N’ (salicylidene)-1, 3-propanediamine (LH2) and Cu (II) ion. NiCl2 and NiBr2 salt were treated with this complex in dioxane-water medium and two new complexes [(CuL)2NiCl2(H2O)2] and [(CuL)2NiBr2(H2O)2)] with CuII-NiII-CuII nucleus structure were obtained. In addition to this...

New cadmium complexes of 4-methoxyphenyl dithiophosphinic acids, H3CO-C6H 4-(R)PS2H were prepared. The five dithiophosphinato ligands (L) involved were of the general structure H3CO-C6H 4-(R)PS\(_{\mathrm {2}}^{\mathrm {-}}\) with R = 3-methylbutyl, (L1); n-butyl, (L2); 2-methylpropyl, (L3); 1-methylpropyl, (L4) and 2-propyl, (L5). To the best of o...

Potassium and tetraphenylphosphonium salts of novel aryldithiofluorophosphonic acids were synthesized. Lawesson's Reagent was allowed to react with KF in acetonitrile to yield the potassium salt of p-methoxyphenyldithiofluorophosphonic acid. Treatment of the latter with tetraphenylphosphonium chloride resulted in the formation of the tetraphenylpho...

A new organodithiophosphorus derivative, namely O-(1,3-Bispiperidino-2-propyl)-4-methoxy phenyldithiophosphonate, was synthesized and then the kinetic behavior of the transport process as a function of concentration, temperature, stirring rate and solvents was investigated. The compound 1 was characterized by elemental analysis, IR, 1H and 31P NMR...

In the title compound, C12H17O4P, the phenylbutenyl group is disordered over two sets of sites with an occupancy ratio of 0.755 (12):0.245 (12). In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds occur, forming R22(10) ring motifs. The packing is consolidated by weak C—H...π interactions.

In the title compound, C12H17O4P, the phenyl­butenyl group is disordered over two sets of sites with an occupancy ratio of 0.755 (12):0.245 (12). In the crystal, inversion dimers linked by pairs of O—H⋯O hydrogen bonds occur, forming R 2 2(10) ring motifs. The packing is consolidated by weak C—H⋯π inter­actions.

In the crystal of the title compound, C16H19O4P, the mol­ecules are dimerized with R 2 2(10) ring motifs through the hydr­oxy and P=O O atoms. The dihedral angle between the aromatic rings is 66.89 (9)°. There are π–π inter­actions [centroid–centroid distance = 3.9669 (16) Å] between the benzene rings of adjacent benzyl groups. A C—H⋯π inter­action...

In the molecule of the title compound, C16H19O4P, the coordination around the P atom is distorted tetrahedral. The aromatic rings are oriented at a dihedral angle of 72.28 (11)°. Intramolecular C—H...O hydrogen bonding result in the formation of five- and six-membered rings. In the crystal structure, intermolecular C—H...O hydrogen bonds link the m...

In the title compound, C18H23O4P, the dihedral angle between the aromatic ring planes is 69.94 (14)°. Both ethyl side chains are disordered over two sets of sites, with occupancy ratios of 80:20 and 70:30. In the crystal, inversion dimers linked by pairs of O—H⋯O hydrogen bonds occur, leading to R 2 1(8) loops, and C—H⋯O and weak C—H⋯π inter­action...

The title compound, C12H19O4P, has a distorted tetrahedral geometry around the P atom. The molecules form dimers with R22(10) ring motifs due to intermolecular O—H...O hydrogen bonds. The double-bonded O atom of the phosphonate group behaves as an acceptor and the hydroxy group acts as a donor. Both of the ethyl groups are disordered with occupanci...

The title compound, C12H19O4P, has a distorted tetra­hedral geometry around the P atom. The molecules form dimers with R 2 2(10) ring motifs due to inter­molecular O—H⋯O hydrogen bonds. The double-bonded O atom of the phospho­nate group behaves as an acceptor and the hydr­oxy group acts as a donor. Both of the ethyl groups are disordered with occup...

In the title compound, C9H12NO6P, intramolecular C—H...O hydrogen bonds form five- and six-membered rings. In the crystal, inversion dimers lined by pairs of C—H...O hydrogen bonds occur with ring motifs R22(10). The O atom of the hydroxy group behaves as an accepter and the benzene ring as donor. Adjacent dimers are connected through O—H...O links...

In the molecule of the title compound, C(16)H(19)O(4)P, the coordination around the P atom is distorted tetrahedral. The aromatic rings are oriented at a dihedral angle of 72.28 (11)degrees. Intramolecular C-H center dot center dot center dot O hydrogen bonding result in the formation of five- and six-membered rings. In the crystal structure, inter...

In the title compound, C9H12NO6P, intra­molecular C—H⋯O hydrogen bonds form five- and six-membered rings. In the crystal, inversion dimers lined by pairs of C—H⋯O hydrogen bonds occur with ring motifs R 2 2(10). The O atom of the hydr­oxy group behaves as an accepter and the benzene ring as donor. Adjacent dimers are connected through O—H⋯O links.

In the crystal structure of the title compound, C9H12ClO4P, the distorted tetrahedral geometry around the P atom consists of three phosphonate O atoms and one C atom of the benzyl group. The bond angles around phosphorus are in the range 101.76 (15)–116.18 (17)°. The P—O single-bond lengths are nearly equal [1.569 (3) Å], while the P=O double-bond...

In the crystal structure of the title compound, C9H12ClO4P, the distorted tetra-hedral geometry around the P atom consists of three phospho-nate O atoms and one C atom of the benzyl group. The bond angles around phospho-rus are in the range 101.76 (15)-116.18 (17)°. The P - O single-bond lengths are nearly equal [1.569 (3) Å], while the P=O double-...

The EPR spectra of the phosphorous centred radicals produced by γ-irradiated single crystals of three phosphorous compounds have been observed and identified as the free radicals (OCH