Phosphates represent diverse complex systems, whose basic structural unit is tetrahedron. They are widely applied as catalysts, carriers of catalytic active substances, adsorbents and ion exchangers. Phosphoric acid phosphates act catalyst for reactions alkylation, cracking, izomerization, polymerization, hydrogenation dehydrogenation. some metals promote oxidation normal alkanes with derivatio...

Abstract Bacterial proteins of the Dsb (disulfide bond) system catalyze formation disulfide bridges, a post-translational modification extra-cytoplasmic proteins, which leads to stabilization their tertiary and quaternary structures often influences activity. DsbA – Escherichia coli monomeric oxidoreductase is best studied protein involved in this process. Recent rapid advances global analysis ...

The 1, 3-bis(trimethyl silyl)ether of p-tert-butyl calix[4]arene, Rt-Bu)Ca1ixTMS21112, has beensynthesized and used as a dianionic ligand for "Sn". The complex of [(t-Bu)Ca1ixTMS2]Snexhibits exo and endo isomerism. The structural properties of [(Rp)Ca1ixTMS2]Sn, (Rpara= H,CH3, t-Bu) and the inter conversion of exoendo isomers were investigated by using of SCF-MOPM3 method.