New hexacyclic binuclear tin complexes derived from bis-(3,5-di-tert-butyl-2-phenol)oxamide

Berry exchange coordinate geometry in 3-methyl-2-hydroxycyclopenten-1-one tin esters

“…3. A similar tin connectivity was also reported in hexacoordinated oxalamide tin esters [19]. The distorted octahedral tin geometry is a consequence of the five membered ring chelate, the atoms in anti position have angles smaller than 180°[O1-Sn1-Cl2 165.66(8)°, O2-Sn1-C7 166.1(1)°and O3-Sn1-Cl1 166.1(1)°].…”

New tin(II) and tin(IV) amidophenolate complexes

“…To the contrary, the chemistry of iminoquinone complexes of non-transition elements still stays insufficiently explored. Particularly, there were described few o-iminoquinone derivatives of magnesium, germanium and tin [5]. All of them include five-or six-coordinate metal center due to substitutes [5a] or additional coordination binding [5b,5c], whereas coordination unsaturation is needed for high reactivity.…”

[5-(4-Bromophenoxymethyl)-1,3,4-thiadiazole-2-thiolato]triphenyltin(IV)

“…(Oruc et al, 2004;Sawhney & Sharma, 1993;Srivastava & Pandey, 1993). Meanwhile, organotins (IV) have been well known for their biological activities (Jimenez-Perez et al, 2000). In order to find a new compound with broad spectrum of bioactivity we have designed and synthesized the title compound.…”

“…For the biological activity of organotin(IV) compounds, see: Jimenez-Perez et al (2000). For related crystal structures, see: Ma et al (2006); Ng et al (1990); Rodarte de Moura et al (1999).…”