Syntheses, characterizations, and crystal structures of organotin(IV) chloride complexes with 4,4′‐bipyridine

Abstract

The organotin(IV) chlorides R n SnCl 4-n (n = 3, R = Ph, PhCH 2 , n-Bu; and n = 2, R = n

Structure and Photoluminescence Properties of a New Nanostructure Tin(IV) Complex: A Precursor for Preparation of Pure Phase Nanosized SnO2

“…[61]. The Sn-N bond lengths of 2.472 (2) and 2.467 (2) Å are slightly longer than the 2.402 (2) Å observed in the polymeric [Me 2 SnCl 2 (4,4-bipy)] n complex [62]. All Sn-C bond lengths in the title compound almost are identical, and they are in the typical range of such bonds lengths found in diorganotin(IV) complexes.…”

catena-Poly[[dimethylbis(thiocyanato-κN)tin(IV)]-μ-(4,4′-bipyridine-κ2N:N′)]

“…For the 4,4 0 -bipyridine adducts of diorganotin dichlorides, see: Ma et al (2004); Ng (1998). For the dimethyltin di(isothiocyanate) adduct of 1,10-phenanthroline, see: Najafi et al (2011).…”

“…The organotin dihalides include dimethyltin dichloride (Ng, 1998), dibutyltin dichloride and dibenzyltin dichloride (Ma et al, 2004); no pseudohalides have been reported. The dimethyltin diisothiocyanate adduct similarly adopts a chain motif (Scheme I, Fig.…”

Exploiting the versatility of pyridyl ligands for the preparation of diorganotin (IV) adducts: spectral, crystallographic and Hirshfeld surface analysis studies

“…The design and development of new structures of organotin (IV) compounds has been attributed to the Lewis acidity nature of tin (IV) center which can coordinate to a variety of O‐, N‐, Cl‐, or S‐donor ligands . Tin atom can exist as tetra‐, penta‐, hexa‐ and hepta‐coordinated or form fluxional stereochemical complexes, however, the penta‐ and hexa‐coordinated organotin (IV) adducts are more common among them. The penta‐coordinated organotin (IV) complexes usually exist as trigonal bipyramidal geometry while the hexa‐coordinated complexes often adopt approximately octahedral geometry.…”

“…It has been reported that the more stable complexes have lower activities, the compounds with the average Sn‐N bond lengths ˃ 2.39 Å usually show anti‐tumour activity. This implies that predissociation of N‐donor ligands may be an important step in the mode of action of these ligands which follow with subsequent formation of tin‐DNA complex . To further improve the features of such compounds, this research shifted towards the use of diaryl and dialkyltin dichlorides and diisothiocyanides as starting materials.…”