Organotin compounds containing four‐membered distannoxane [Sn(µ‐OH)]₂ units

Abstract

Compounds containing the distannoxane core [Sn(µ-OH)] 2 are reviewed. Synthesis and structural aspects of these compounds are summarized in this article.

Trapping Dimethyltin Cations by Bipyridine‐N,N′‐Dioxide Ligands

“…The Sn–O–Sn bond angle in the [Sn 2 (μ‐OH) 2 ] motif is 106.17(8)° (Sn1–O1–Sn1*), whereas the Sn–O bond lengths involving the bridging hydroxide ligands are 2.133(2) Å (Sn1–O1) and 2.153(2) Å (Sn1–O1*). Thus, the average Sn–O bond lengths and angles involving the [Sn 2 (μ‐OH) 2 ] motif are similar to those found in [Me 2 Sn(μ‐OH)(NO 3 )] 2 [2.12 Å and 108.6(1)°]8b and other bis‐hydroxide bridged diorganotin nitrates 1c. The coordination environment around each central tin atom (hexacoordinate, 2C and 4O) comprises of two oxygen atoms of the bridging hydroxide ligands (O1 and O1*), two oxygen atoms from two cis BPDO‐II ligands (O2 and O3), and two carbon atoms of two trans methyl groups (C1 and C2).…”

Understanding the structure of salicyl hydrazone metallocomplexes: crystal structure, AIM and Hirshfeld surface analysis of trichloro-(N-salicylidenebenzoylhydrazinato-N,O,O′)-tin(IV)

“…Several reasons of that can be pointed out. Tin possess a considerable structural diversity that attracts an ongoing interest in its coordination chemistry [1][2][3][4][5]. A number of tin compounds promote antimicrobial [6,7] and anticancer [8][9][10] activity.…”

Di-μ-hydroxido-bis[dimethyl(thiocyanato-κN)tin(IV)]

“…Organotin complexes may interact with biological systems in many different ways as bactericides, fungicides, acaricides and industrial biocides (Davies, 2004;Gielen et al, 1991;Gielen, 1996;Kamruddin et al, 1996;Khoo & Ng, 2001;Tsangaris & Williams, 1992). Many tin compounds containing the Sn(CH 3 ) 2 residue tiogether with a four-membered distannoxane [Sn(µ-OH)] 2 ring have been reported (Chandrasekhar et al, 2007;Ng, 1998). In the context of new Sn(CH 3 ) 2 -residue containing compounds we have initiated the structural study of the interactions between (NH 4 )SCN and Sn(CH 3 ) 2 Cl 2 , which has yielded the title complex, [Sn(CH 3 ) 2 (OH)(SCN)] 2 , (I).…”

“…For background to organotin(IV) chemistry, see: Davies (2004); Gielen et al (1991); Gielen (1996); Kamruddin et al (1996); Khoo & Ng (2001); Tsangaris & Williams (1992). For structures containing the four-membered distannoxane [Sn(-OH)] 2 unit, see: Chandrasekhar et al (2007); Ng (1998). For related structures, see: Cox & Wardell (1996); Okio et al (2003).…”