heterogeneous catalytic hydrogenation of cyclohexene, catalyzed by pt/a1203, was carried out in thirteenvarious solvents (four alcoholic solvents, six aprotic polar solvents and three non polar solvents) at 25 °c.single-parameter correlations of logk vs. normalized polarity parameter (etn), hydrogen-bond acceptorbasicity (p), hydrogen-bond donor acidity (a) and dipolarity/polarizibility (it*) d...

copper (ii) phthalocyanine and 2,9,16,23 tetrakis nitro copper (ii) phthalocyaninehas been synthesized respectively from phthalonitrile and 4-nitro phthalonitrile under solvent-free condition using two different catalystsovernanodimensionalzeolites. 4-nitro phthalonitrile synthesized from phthalimide in three steps. the newly prepared compounds have been characterized by ir, uv-vis, 1hnmr and m...

The solute-solvent interface that separates biological molecules from their surrounding aqueous solvent characterizes the conformation and dynamics of such molecules. In this work, we construct a solvent fluid dielectric boundary model for the solvation of charged molecules and apply it to study the stability of a model cylindrical solute-solvent interface. The motion of the solute-solvent inte...

A novel synthesis method of partially crosslinking a polymer solution prior to casting, has been successfully developed for the preparation solvent-tolerant nanofiltration (STNF) membranes. STNF merges solvent resistant (SRNF) with aqueous nanofiltration. The feed consists mixture solvent(s) and water, requiring membrane both high water permeability stability. In this work, epoxy resins are pro...

Excitation energy transfer is crucially involved in a variety of systems. During the process, non-Condon vibronic coupling and surrounding solvent interaction may synergetically play important roles. In this work, we study correlated vibration-solvent influences on exciton spectroscopy. Statistical analysis elaborated for overall vibration-plus-solvent environmental effects. Analytic solutions ...