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 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...

In aquatic invertebrates, particularly marine gastropods, organotin compounds induce irreversible sexual abnormality in females, which is termed imposex, at very low concentrations. Organotin compounds are agonists for nuclear receptors such as RXRs and PPARgamma. However, the imposex phenomenon has not been reported to act as an antagonist on estrogen receptors in other species, including vert...

A catalytic process for the chemo- and regioselective functionalization of nonprotected carbohydrates has been developed. This novel process allows selective thiocarbonylation, acylation, and sulfonylation of a particular hydroxy group in a particular carbohydrate in the simultaneous presence of structurally similar carbohydrates such as anomers. In addition, the chemoselectivity can be switche...

Water and surface sediment samples were analyzed for butyltins (TBT, DBT, MBT) from various ports along the east and west coast of India. The total butyltin (TB) in water samples varied between ~1.7 and 342 ng S nl⁻¹, whereas for sediments it varied between below detection limit to 14861 ng S ng⁻¹ dry weight of sediment. On an average Chennai port recorded the highest level of butyltins in the ...

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.

The series of 14 complex organotin(IV) compounds containing many tin atoms and noncovalent bonds in the structure was characterized by electrospray ionization multistage tandem mass spectrometry (ESI-MS(n)). The mass spectra were measured in both polarity modes to obtain complementary structural information. The characteristic pattern of ten natural tin isotopes allowed the determination of the...