Solvent effect on molecular characteristics of polybutadiene and on the kinetic heterogeneity of catalytic systems based on TiCl4

Solvent effect on the molecular characteristics of polybutadiene and on the kinetic heterogeneity of catalytic systems based on TiCl₄ was studied.     

UV spectroscopic quantitative determination of methanofullerene derivatives with a different degree of substitution

A spectroscopic method for the analysis of compounds belonging to methanofullerenes with different functionalization and a number of substituents is developed. In order to determine the composition of mixtures of these compounds the standard spectrophotometric procedure along with derivative spectroscopy are applied. Acceptable reproducubility and sensitivity of the methods used are demonstrated on model mixtures of fullerene derivatives. The reaction mass obtained in the interaction of fullerene with diallyl ester of malonic acid is analyzed.     

Chemiluminescence of Ru(bpy)3 2+* in the reaction of electron transfer from Ph3CNa to Ru(bpy)3 3+ in a solution

Conditions for the generation of the Ru(bpy)₃ ³⁺ complex in organic solvents (Me₃CN or MeNO₂) in the presence of small amounts of H₂SO₄ were found. Chemiluminescence was observed in the reaction of Ru(bpy)₃ ³⁺ with Ph₃Na in a THF-MeCN mixture. The chemiluminescence emitter was identified as Ru(bpy)₃ ^2+*. This emitter forms in the excited state in the elementary reaction of electron transfer from the Ph₃C⁻ anion to Ru(bpy)₃ ³⁺. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 292–294, February, 1999.