Spectroscopic and structural investigation of interaction of 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione potassium salt with molecular iodine
作者:Victoria A. Ivolgina、Margarita S. Chernov'yants
DOI:10.1016/j.saa.2018.03.069
日期:2018.6
4-thiadiazole-2-thione potassium salt has been isolated and characterized by X-ray diffraction. Intermolecular interactions between sulfur atoms are observed with very short interatomic distance, shorter than sum of van der Waals radii. The contact between heterocyclic sulfur and heterocyclic nitrogen is also slightly short – 3.169 Å (0.053 Å less than vdW radii sum). This investigation constitutes a starting
Syntheses, characterization and crystal structures of new organogermanium complexes with 2,5-dimercapto-4-phenyl-1,3,4-thiodiazole
作者:Chunlin Ma、Qin Jiang、Junhong Zhang、Rufen Zhang
DOI:10.1016/s0277-5387(03)00401-7
日期:2003.9
A series of orizanogermanium(W) complexes with 2,5-dimercapto-4-phenyl-1,3,4-thiodiazole of the type, RnGe[S(C8H5N2S2)](4-n) (n = 3: R = CH3, 1: C2H5 2; C4H9, 3; C6H5, 4; n = 2, R = CH3, 5; C2H5, 6; C4H9, 7; C6H5, 8) have been synthesized. All the complexes 1-8 have been characterized by elemental, IR and H-1 NMR analyses. Among them complexes 4 and 8 have also been characterized by X-ray crystallography diffraction analyses, which revealed that the structure of complex 4 is a tetrahedron while the germanium environment of complex 8 is a distorted octahedron. Furthermore, an intermolecular non-bonded sulfur-sulfur interaction was recognized in complex 8. The IR and H-1 NMR spectral data indicate such an inclination that those structures of trialkylgermanium derivatives are apt to be four-coordinated and those of dialkylgermanium derivatives are likely to be six-coordinated. (C) 2003 Elsevier Science Ltd. All rights reserved.
Synthesis of Some Novel 1,3,4- and 1,2,4-Thiadiazole Derivatives
作者:Yaşar Dürüst
DOI:10.1080/10426500802625453
日期:2009.10.30
Synthesis and spectral characterization of novel 1,3,4-thiadiazole derivatives including one organo-mercury compound are described. Their structure elucidation was performed by means of spectroscopic and physical methods (IR, H-1 NMR, C-13 NMR, MS, X-ray).