A catalytic study of water dispersed gold nanoparticles for the hydrolytic oxidation of diorganosilanes – <i>en route</i> formation of a Pickering catalyst and synthesis of tetraorganodisiloxane-1,3-diols
作者:Ravi Shankar、Nidhi Mahavar
DOI:10.1039/d0dt03252b
日期:——
Water-dispersed gold nanoparticles decorated with an amphiphilic cyclotetrasiloxane scaffold hold promise for the catalytic transformation of diorganosilanes to tetraorganodisiloxane-1,3-diols, (RR1SiOH)2O [R = Me or Ph R1 = Ph, cyclo-Hex] via en route formation of a Pickering emulsion. The recognition ability of these compounds toward Cl− ions reveals 2 : 1 receptor-anion complexation.
用两亲性环四硅氧烷支架装饰的水分散金纳米颗粒有望将二有机硅烷催化转化为四有机二硅氧烷-1,3-二醇(RR 1 SiOH)2 O [R = Me或Ph R 1 = Ph,环-Hex]通过在途中形成Pickering乳液。这些化合物朝向Cl组成的识别能力-离子揭示了2:1受体阴离子络合。
Inter- and intra-molecular association of poly(diorganosiloxane)-αω-diols
作者:Glyn I. Harris
DOI:10.1039/j29700000488
日期:——
examination of intramolecularhydrogenbonding in the trisiloxane-1,5-diols has provided useful data on the stereochemistry of these compounds. Valencydeviation due to the gem-diphenyl groups has been proposed to explain the high intramolecular hydroxy-frequency shift of hexaphenyltrisiloxane-1,5-diol relative to those given by the other trisiloxane-1,5-diols. A second intramolecular band given by