The synthesis, properties and reactivity of group 11 organotin sulfide clusters [(R(1)Sn)4(SnCl)2(MPPh3)2S8] (M = Cu, Ag), [(R(3)Sn)10Ag10S20], and [(R(1,3)Sn)2(AuPPh3)2S4] with covalently bound, carbonyl or hydrazine-terminated ligands R(1) = CMe2CH2C(Me)O or R(3) = CMe2CH2C(Me)NNH2 are reported.

Organotin complexes were screened extensively in vitro against a number of plant pathogens, which are responsible for various diseases in plants. Antifungal activity was determined in 2007 by Hanging drop method (in C. glocosporiodes, A. brassicicola and C. capsic) and found to be very much active in this respect. The order of increasing activities is schiff base<Et3SnL<Bz3SnL<Ph3SnL. The resul...

Organosilicon-mediated, regioselective acetylation of vicinal- and 1,3-diols is presented. Methyl trimethoxysilane or dimethyl dimethoxysilane was first used to form cyclic 1,3,2-dioxasilolane or 1,3,2-dioxasilinane intermediates, and subsequent acetate-catalyzed monoacylation was efficiently performed by addition of acetic anhydride or acetyl chloride under mild conditions. The reaction exhibi...

The average concentrations of TBT ngSng were found as 235 in fish, 116 in mussels and 635 in barnacles. All mussels sampled showed values of TBT+DBT, which were below the "tolerable average residue level (TARL)" as currently accepted. Barnacles have high potential as biomonitors for the presence of organotin in the Aegean Sea.