trans-[2,6-Diacetylpyridine bis(thiosemicarbazone)(1–)]diphenyltin(IV) Chloride

Bonding and structure trends of thiosemicarbazone derivatives of metals—An overview

“…In complex, [Ph 2 Sn(HL)]Cl, 549 [133], the ligand is mononegative with one chlorine outside the coordination sphere, while it is neutral in [Bu n 2 Sn(H 2 L)]Cl 2 , 552 [376] and dinegative in [R 2 SnL] (547, 548, 550, 551 and 553) (Fig. 46).…”

“…The pyridyl based bis-thiosemicarbazones form a series of seven-coordinate complexes of general formula, [R 2 SnL] 547-553 [133,160,334,368,[374][375][376]378] (Chart 75). In complex, [Ph 2 Sn(HL)]Cl, 549 [133], the ligand is mononegative with one chlorine outside the coordination sphere, while it is neutral in [Bu n 2 Sn(H 2 L)]Cl 2 , 552 [376] and dinegative in [R 2 SnL] (547, 548, 550, 551 and 553) (Fig.…”

“…Indium(III) complexes were generally prepared using indium(III) halide/nitrate [127], while thallium(III) complexes were prepared using R 2 Tl(OH) [R = CH 3 , phenyl] [25,128,129]. Tin(IV) complexes were prepared using SnMe 2 O, SnMe 2 Cl 2, or Ph 2 SnO [130][131][132][133]. For lead complexes, PbPh 2 Cl 2 has been used as a precursor [134,135], however, electrochemical methods are also reported [136].…”

Heptacoordination in Organotin(IV) Complexes: Spectroscopic and Structural Studies of 2,6–Diacetylpyridine bis(thiosemicarbazone)di–n–butyltin(IV) Chloride Nitromethane Solvate, [nBu2Sn(H2daptsc)]Cl 2•MeNO2 and of 2,6–Diacetylpyridine bis(semicarbazone)dimethyltin(IV) trans–Tetrachlorodimethylstannate(IV), [Me2Sn(H2dapsc)][Me2 SnCl4]

“…Thiosemicarbazone and semicarbazone complexes have been the subject of much interest in recent years due to the biological activity of thiosemicarbazones, in particular, and of a number of their complexes, 1 as well as to the unusual structural aspects of complexes of both types of ligands. [2][3][4] Insofar as many organotin(IV) complexes are also noteworthy for the same reasons, a combination of the two chemistries is an interesting line to pursue.…”

Heptacoordinate Tin(IV) Compounds Derived from Pyridine Schiff Bases: Synthesis, Characterization, in Vitro Cytotoxicity, Anti-inflammatory and Antioxidant Activity

“…21,22) The Schiff base-organotin complexes have received special attention in view of their chemistry and structural aspects of hypervalent species. [23][24][25][26][27][28][29][30] Regarding this, investigations concerning chelating properties and coordinative effects of 2,6-diacetylpyridine and its influence on the conformation and geometry of heptacoordinated tin complexes derived of hydrazones, 31,32) semicarbazones, thiosemicarbazones, [33][34][35][36][37][38][39][40] acylhydrazones, 41) have been undertaken. Our interest in organotin(IV) and organosilicon compounds containing pyridine moieties let us to study the influence and nature of the ligand substituents in the formation of pentacoordinate tin and silicon derivatives.…”