Kim, SJ Jung, IN Yoo, BR Ko, J Kang, SO 2024-01-21T11:39:26Z 2024-01-21T11:39:26Z 2021-09-04 2001-11 1042-6507 https://pubs.kist.re.kr/handle/201004/140097 The structure-reactivity relationship of titanium complexes CySi(HNBu ')(2)TiCl2 (1) (CySi = silacyclobutane, silacyclopentane, silacyclopentene, and silacyclohexane) stabilized by a series of cyclic silyldiamide ligands has been studied. The crystallographic results establish that steric interactions between the silacycloalkyl and tort-butyl groups influence the C(Bu-t)-N-Ti angles and, hence, the steric environment at titanium. The compounds 1 were further investigated as potential catalysts for the polymerization of ethylene. While sterically less demanding silacyclobutyl and -pentyl diamide complexes (la and 1b) exhibit low ethylene polymerization activity (3.9 similar to5.8 kg PE mol(cat) (-1)h(-1)) in the presence of methylalumoxane. highly puckered silacyclohexyl diamide complex lc shows better activity (10 kg PE mol(cat) h(-1)) for the ethylene polymerization when it is activated with MAO. English GORDON BREACH PUBLISHING, TAYLOR & FRANCIS GROUP AMIDINATE COMPLEXES MOLECULAR-STRUCTURE ALPHA-OLEFINS POLYMERIZATION LIGAND Structure-reactivity relationship in silacycloalkyl diamide complexes of titanium(IV) Article 1 PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, v.168, pp.135 - 140 PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS 168 135 140 scie scopus 000170329100020 2-s2.0-0035649095 Chemistry, Inorganic & Nuclear Chemistry, Organic Chemistry Article; Proceedings Paper AMIDINATE COMPLEXES MOLECULAR-STRUCTURE ALPHA-OLEFINS POLYMERIZATION LIGAND cyclic silyldiamide silacycloalkane titanium ethylene polymerization