Self-assembly of diphenyltin(IV) and tris-dithiocarbamate ligands to racemic trinuclear cavitands and capsules.

Racemic trinuclear diphenyltin(IV) cavitands and capsules have been assembled from diphenyltin(IV) and tris-dithiocarbamate ligands.

Cytotoxic Activities of O-Cholesteryl-O-Phenyl-N-Phenylphosphoramidate and Its Organometallic Tin(lV) Derivatives.

O-Cholesteryl-O-phenyl-N-phenylphosphoramidate (1) and four organotin (lV) derivatives of the ambidentate O-cholesteryl-O -phenyl phosphorothioate ligand formulated as Me(3) SnOSPR'R"(2), Ph(3)SnOSPR'R"(3), O(CH(2)CH(2)S)(2)Sn(n-Bu)OSPR'R"(4), S(CH(2)CH(2)S)(2)Sn(n-Bu)OSPR'R"(5), (R' = O-phenyl; R"= O-cholesteryl) were subjected to cytotoxicity screening against KB (nasopharingel carcinoma), OVCAR-5 (ovarium carcinoma) and SQC-1 UlSO (squamous cell cervix carcinoma) cell cultures. The results of the bioassay showed that these compounds possess potent antitumor activities against the studied human carcinoma cell lines.

Template-assisted self assembly of two lipophilic polyion aggregates derived from sodium tetraphenyl imidodiphosphinate-complexes containing sodium ions in four different coordination environments.

The molecular structures of two lipophilic polyion aggregates derived from tetraphenyl imidodiphosphinate are described: [Na(crown ether)][MNa(2)[Ph(2)P(O)NP(O)Ph(2)](4)] with crown ether = 15-crown-5 for 1and benzo-15-crown-5 for (M = Na(+) for 1 and Na(H(2)O)(+) for 2).