Russian Chemicfl Bulletin
WELCOME    CONTACT
ABOUT    INDEX
FOR AUTHORS       
SUBSCRIPTION DETAILES:       
ISSUES       
SEARCH       
 
HOME ÐÓÑÑÊÀß ÂÅÐÑÈß

ISSUE 1

ISSUE 2

ISSUE 3

ISSUE 4

ISSUE 5

ISSUE 6

ISSUE 7

ISSUE 8

ISSUE 9

ISSUE 10

ISSUE 11

ISSUE 12

ISSUE 10

Year 2005, Month 10 (Section Full Articles, Page 2330)

Spectrophotometric study of zirconocene/polymethylalumoxane catalytic systems: principal component analysis and parametric modeling

A. G. Ryabenko, E. E. Faingol´d, E. N. Ushakov, and N. M. Bravaya

Transformation of electronic absorption spectra of zirconocene catalytic systems Ph2CCpFluZrCl2—polymethylalumoxane (MAO) and rac-Me2Si(2-Me,4-PhInd)2ZrCl2—MAO (Flu is fluorenyl, Ind is indenyl) in toluene was studied upon a change in the ratio of reactants AlMAO/Zr from 0 to 3000 mol mol–1. Analysis of the spectroscopic data using statistical methods determined the number of reaction products in each system. A reaction model including three equilibria and being common for the both systems was proposed. Effective equilibrium constants and absorption spectra of individual reaction products were determined by parametric selfmodeling of the experimental spectra.

BACK   I wish to order PDF file of this article for 25.00 USD

Designed by - Web-Studio Vinchi

© Russian Chemical Bulletin
® Vinchi Group