Cadmium(II) complexes containing 2,2′-dimethyl-4,4′-bithiazole ligand: synthesis, characterization, and crystal structure

Abstract

Mononuclear and coordination polymer compounds of 2,2 0 -dimethyl-4,4 0 -bithiazole (dm4bt) ligand have been prepared by metallation of dm4bt with Cd(NO 3 ) 2 Á 4H 2 O and CdCl 2 Á H 2 O. The compounds were characterized by IR, 1 H NMR, UV-Vis spectroscopy, and X-ray crystallography. The structural study of [Cd(dm4bt) 2 (NO 3 ) 2 ] Á H 2 O (1) shows that the complex is a monomeric seven-coordinate (CdN 4 O 3 ) cadmium(II)-bithiazole system with two bidentate dm4bt and mono and bidentate nitrates. The structure of [Cd(dm4bt)Cl 2 ] n (2) is a distorted octahedral environment around the cadmium(II) (CdN 2 Cl 4 ) forming a 1-D coordination polymer as a result of bridging by two chlorides and 2-D structure from -stacking interactions.

Synthesis, characterization, and crystal structure determination of two copper(II) complexes: [Cu(dm4bt)Cl2(DMSO)] and [{Cu(dm4bt)(H2O)(tpht)} · H2O] n

“…We have previously reported the synthesis and crystal structure of dm4bt and also its zinc, mercury, cadmium, thallium, and copper complexes resulting from ZnCl 2 , HgCl 2 , [28][29][30][31]. In all of these cases, we obtained monomeric compounds with [Zn(dm4bt)Cl 2 ], and [{Cu(dm4bt) 2 (NO 3 )}NO 3 ].…”

Synthesis, characterization, and crystal structure determination of Cu(II) coordination compounds with 2,2′-dimethyl-4,4′-bithiazole

“…We also obtained . We were not able to make complexes bearing two dm4bt ligands for chloride salts of Zn, Cd, Hg, and Cu, but in complexes from nitrate salts two dm4bt ligands coordinated to Cd [14], Tl [15], and Cu.…”

“…We recently introduced the coordination chemistry of 2,2 0 -dimethyl-4,4 0 -bithiazole (dm4bt) with Zn(II), Hg(II) [13], Cd(II) [14] and Tl(III) [15], in addition to the nickel bithiazole reported previously [16]. We report here the synthesis and characterization of two copper complexes with dm4bt.…”

Synthesis, characterization, and crystal structural study of the iron(II) 4,4′-bithiazole complex [Fe(C6H4N2S2)3]2+(NO3 −)2

“…For example, a Co(II) complex and a Ni(II) complex with 2,2 0 -diamino-4,4 0 -bithiazole (DABT) have both been found to be effective inhibitors of DNA synthesis in tumor cells [9,10], and multinuclear Fe(II) and Cu(II) complexes with a DABT Schiff base have been found to be excellent soft magnetic materials [11][12][13][14]. We have also introduced the coordination chemistry of 2,2 0 -dimethyl-4,4 0 -bithiazole (dm4bt) with Zn(II), Hg(II) [19], Cd(II) [20], Tl(III) [21], and Cu(II) [22].…”