Реферат: The state of Ti(III) ions in ethylene polymerization catalysts prepared by interaction of Ti(CH2C6H5)4 with SiO2 was studied by the ESR technique. Several types of Ti(III) ions, differing in ligand environment were observed. The relative amounts of Ti(III) ions of different types depend on the catalyst composition and the parameters of catalyst treatment. The formation of the Ti-H bond was found in samples heated under vacuum or treated with hydrogen. The nature of hyperfine splitting of hydrogen in the Ti(III)H bond was analyzed. The interaction of Ti(III) ions with H2 and C2H4 was studied. The adsorption of ethylene on titanium ions at low temperatures was followed by insertion of ethylene into the Ti-H and Ti-C bonds when the temperature was increased. By the ESR technique the hydrogenolysis of the Ti-C bond and its thermal decomposition by hydrogen transfer mechanism were followed under polymerization conditions.

Библиографическая ссылка: Maksimov N.G. , Nesterov G.A. , Zakharov V.A. , Stchastnev P.V. , Anufrienko V.F. , Yermakov Y.I.
The ESR Study of the State of Ti(III) Ions in Supported Organotitanium Catalysts for Ethylene Polymerization
Journal of Molecular Catalysis. 1978. V.4. N3. P.167-179. DOI: 10.1016/0304-5102(78)85012-3 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Поступила в редакцию:	20 апр. 1977 г.
Опубликована в печати:	1 июл. 1978 г.
Опубликована online:	2 окт. 2001 г.

Идентификаторы БД:

Web of science:	WOS:A1978FD78200001
Scopus:	2-s2.0-49349123858
РИНЦ:	30940593
Chemical Abstracts:	1978:490317
Chemical Abstracts (print):	89:90317
OpenAlex:	W1989800645
Sciact:	16280

Цитирование в БД:

БД	Цитирований
Scopus	39
OpenAlex	46

Альметрики: