The Methyl Group at C2 Carbon in {(2‐C4H3S)–C2(Me)=N–NH–C1(=S)NH2} Alters Iodide‐Bridging to Sulfur‐Bridging in Copper(I) Iodide Complexes

Lobana, Tarlok S.; Sharma, R. C.

doi:10.1002/zaac.200900219

Cited by 9 publications

(1 citation statement)

References 16 publications

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“…Recently, the chemistry of copper(I) halides with thiophene-2-carbaldehyde thiosemicarbazones and furan-2-carbaldehyde thiosemicarbazones have been reported and it was observed that substituents at C 2 and N 1 atoms of thiosemicarbazone influenced the bonding and nuclearity of copper(I) halide complexes. [42][43][44][45] Thus, we were interested in finding the similar effect in case of isatin-3-thiosemicarbazone. Un-substituted isatin-3-thiosemicarbazone reacted with copper(I) halides and Ph 3 P in 1: 1: 2 molar ratio to form tetrahedral monomers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure and cytotoxicity evaluation of complexes of N1-substituted-isatin-3-thiosemicarbazone with copper(I) halides

Khan

Jasinski

Smoleaski

et al. 2016

Inorganica Chimica Acta

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Synthesis of Isatin-N 1-methyl-thiosemicarbazone (H 2 itsc-N 1-Me, H 2 L 1) and isatin-N 1-ethylthiosemicarbazone (H 2 itsc-N 1-Et, H 2 L 2) has been carried out and the effect of substituents (at N 1 atom of isatin-3-thiosemicarbazones) on nuclearity of copper(I) halide complexes has been investigated. Reactions of copper(I) halides (X = I, Br, Cl) with H 2 L 1 and H 2 L 2 using Ph 3 P as coligand in 1 : 1 : 1 (M : L : PPh 3) molar ratio in acetonitrile yielded complexes of stiochiometry [CuX(H 2 L 1)(Ph 3 P)] (X = I, C1; Br, C2; Cl, C3) and [CuX(H 2 L 2)(Ph 3 P)] (X = I, C4; Br, C5; Cl, C6) respectively. All these complexes have been characterized using analytical and spectroscopic data (IR, 1 H NMR and ESI mass). The single crystal structure has been solved for H 2 L 1 and C2. The complex C2 has distorted tetrahedral geometry around copper(I) and isatin

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Section: Introductionmentioning

confidence: 99%

Synthesis, structure and cytotoxicity evaluation of complexes of N1-substituted-isatin-3-thiosemicarbazone with copper(I) halides

Khan

Jasinski

Smoleaski

et al. 2016

Inorganica Chimica Acta

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The Effect of C‐2 Substituents of Salicylaldehyde‐Based Thiosemicarbazones on the Synthesis, Spectroscopy, Structures, and Fluorescence of Nickel(II) Complexes

et al. 2013

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The aim of this investigation was to study the bonding patterns, geometry, and fluorescence properties of nickel(II) complexes with salicylaldehyde‐based thiosemicarbazones [(2‐OH‐5‐R1‐C6H3)C(R2)=NNHC(=S)NHR3, LH2] by invoking the effect of substituents at the C‐2 and N‐1 atoms of the thio ligands and by using bipyridines/phenanthrolines as auxiliary ligands. The methodology used for the preparation of complexes involved initial binding of NiII with a thio ligand in an organic solvent to yield an insoluble solid of empirical composition [NiL], which was reacted further with a N,N‐donor ligand. In this way, we have prepared a series of dinuclear complexes and two mononuclear complexes with stoichiometries [Ni2L2(bipy)(D)] [bipy = 2,2′‐bipyridine, L = L1 (R1, R2, R3 = H), D = H2O 1; L = L2 (R1, R2 = H, R3 = Me), D = CH3OH 2; L =L3 (R1, R2 = H, R3 = Et), D = CH3OH 4; L = L3, D = H2O 5; L = L4 (R1 = Me, R2 = H, R3 = Me), D = CH3OH 6], [Ni2L32(bipy)] (3), [Ni2L32(dmbipy)(H2O)] (7, dmbipy = 4,4′‐dimethyl‐2,2′‐bipyridine), [Ni2L52(bipy)2] (8, R1 = NO2, R2 = H, R3 = Me), [NiL6(bipy)] (9, R1 = NO2, R2 = H, R3 = Et), [NiL7(bipy)(H2O)] (10, R1 = H, R2 = Me, R3 = Et), [Ni2L32(4,4′‐bipy)] (11, 4,4′‐bipy = 4,4′‐bipyridine), and [Ni2L72(4,4′‐bipy)] (12). The dinuclear complexes involve (i) O,N3,S chelation with bridging N2 atoms to form trigonal‐bipyramidal/square‐planar complexes with a five‐coordinate and a four‐coordinate Ni center (3, 5:4‐coordination) and octahedral/square‐planar complexes (1, 2, 4–7, 6:4‐coordination), (ii) O,N3,S chelation with S bridges to form octahedral/octahedral complexes (8, 6:6‐coordination), and (iii) O,N3,S chelation to form square‐planar/square‐planar complexes (11, 12, 4:4‐coordiantion). The mononuclear complexes involve O, N3,S chelation and have square‐pyramidal (9) and octahedral (10) geometries. Complexes 1–10 are paramagnetic with μeff value in the range 2.97–3.38 μB. Complexes 2 and 3 exhibit fluorescence emission.

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Ultrasonic-bath-assisted preparation of mononuclear copper(I) thiosemicarbazone complex particles: Crystal structure, characterization and antimicrobial activity

Khalaji

Shahsavani

Feizi

et al. 2016

Comptes Rendus. Chimie

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Particles of the copper(I) thiosemicarbazone complex [Cu(Brcatsc)(PPh3)2Cl]$CH3CN (1), Brcatsc ¼ 2-bromo-3-phenylpropenalthiosemicarbazone, were synthesized by an ultrasonic-bath-assisted method and characterized by elemental analyses, NMR ( 1 H, 13 C, and 31 P) and FT-IR spectroscopies, X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The thermal stability of 1 was studied by thermal gravimetry analysis and its structure was determined by single crystal X-ray diffraction. The compound 1 is a mononuclear complex with the copper(I) ion coordinated in a distorted tetrahedral geometry by one S atom of Brcatsc, two P atoms of two PPh 3 , and one Cl atom. The complex involves the Brcatsc thiosemicarbazone ligand in an S monodentate bonding mode. The antibacterial activity of the ligand and its copper(I) complex was studied against two gram-positive (Staphylococcus aureus and Enterococcus faecalis) and two gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria.

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The Methyl Group at C² Carbon in {(2‐C₄H₃S)–C²(Me)=N–NH–C¹(=S)NH₂} Alters Iodide‐Bridging to Sulfur‐Bridging in Copper(I) Iodide Complexes

Cited by 9 publications

References 16 publications

Synthesis, structure and cytotoxicity evaluation of complexes of N1-substituted-isatin-3-thiosemicarbazone with copper(I) halides

Synthesis, structure and cytotoxicity evaluation of complexes of N1-substituted-isatin-3-thiosemicarbazone with copper(I) halides

The Effect of C‐2 Substituents of Salicylaldehyde‐Based Thiosemicarbazones on the Synthesis, Spectroscopy, Structures, and Fluorescence of Nickel(II) Complexes

Ultrasonic-bath-assisted preparation of mononuclear copper(I) thiosemicarbazone complex particles: Crystal structure, characterization and antimicrobial activity

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