Several organotin derivatives of 1,2- and 1,7-dicarba-closo-dodecaboranes were synthesized and characterized by (119)Sn Mössbauer, (1)H, (13)C and (119)Sn NMR spectroscopy. Their antitumour activities in vitro against cancerous cell lines of human origin are reported.

C(1)-C(2) 1.303(18) C(1)-Sn(1) 2.245(11) C(2)-C(3) 1.37(2) C(3)-C(4) 1.41(3) C(3)-C(4') 1.42(3) C(5)-C(6) 1.331(18) C(5)-Sn(2) 2.297(13) C(6)-C(7) 1.45(2) C(7)-C(8) 1.32(3) C(7)-C(8') 1.50(2) N(1)-O(29) 1.23(2) N(1)-Mo(8) 1.668(11) N(2)-O(30) 1.06(2) N(2)-Mo(10) 1.652(10) O(1)-Mo(1) 1.687(10) O(3)-Mo(1) 1.723(10) O(4)-Mo(1) 1.890(8) O(4)-Mo(2) 1.943(9) O(6)-Mo(4) 1.853(8) O(6)-Mo(1) 1.940(8) O(...

Effectiveness of the 1989 environmental protection regulations in reducing concentrations and biological effects of tributyltin (an organotin) a marine antifoulant, in Victorian coastal water-bodies.

Some organotin(IV) and tin(II) complexes of composition R(3)Sn[R'COC:CON(C(6)H(5))N:CCH(3)] (where R=C(4)H(9), R'=CH(3), C(3)H(5), p-ClC(6)H(4); R=C(6)H(5), R'=C(6)H(5) and p-ClC(6)H(4)) and Sn[p-ClC(6)H(4)COC:CON(C(6)H(5))N:CCH(3)](2) were screened for their toxicity against Aedes aegypti larvae. Organotin(IV) complexes were more active than tin(II) complexes.

A simple cyclopalladated complex of 4-(2-thiazolylazo)resorcinol showed a specific red-to-green colour change upon addition of organotin species in the acetonitrile-water medium.

Organotin(IV) compounds have gained significant interest in both the chemical and pharmaceutical industry. This research concentrates on synthesis of di tri-organotin complexes with mefenamic acid characterized different techniques such as elemental analysis, FTIR, proton carbon NMR. The anti-oxidant properties were assessed using 1,1-diphenyl-2-picrylhydrazyl, DPPH CUPRAC Method . complexes' s...

The extent of pollution with organotin compounds and Cd, Pb, Ni, Cu, Zn, Cr, Mn, V, Co and Al was investigated in sediments and mussels (Mytilus galloprovincialis) from the Slovenian costal area of the Northern Adriatic Sea. Sampling was performed in Marina Portoroz, Dockyard Izola, non exposed area of the Bay of Mesecev zaliv and in Mariculture Secovlje. Mussels were taken in the summer and wi...

New organotin substituted alpha-anilinomethylphosphonates were prepared and were characterized by FT-IR, 1H- and 13C-NMR spectroscopy and elemental microanalysis.

Semi volatile organochemicals such as chlorinated organophosphorus and organotin compounds are detected in many indoor materials and residential house dust samples. Chlorinated phosphorus based flame retardants are found in 90 % of over 1,500 house dust samples ranging from 0.1 to 1,300 mg/kg. The results of material samples show that many polyurethane soft foams, sealants, and finishes contain...