ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Model Calculations on the Counterion Effect in the Cationic Polymerization; Decay of the Mixed Halogenoantimonates SbCl5Br- and SbClBr5-The decay of the halogenoantimonates SbCl5Br- and SbClBr5- according to SbCl5Br- → SbCl5 + Br- resp. SbCl4Br + Cl- and SbClBr5- → SbBr5 + Cl- resp. SbClBr4 + Br- has been investigated by the quantum-chemical CNDO/2 method including geometry optimization. The calculations show that the dissociation of the Sb—Cl bond needs more energy (7,8 kcal/mol) than the dissociation of the Sb—Br bond.Dissociation of the complex anions is facilitated with increasing Br content.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19793210615