Fe (II) and Co (II) pyridinebisimine complexes bearing different substituents on ortho-and para-position of imines: synthesis, characterization and behavior of ethylene …

JY Liu, Y Zheng, YG Li, L Pan, YS Li, NH Hu

Index: Liu, Jing-Yu; Zheng, Yi; Li, Yan-Guo; Pan, Li; Li, Yue-Sheng; Hu, Ning-Hai Journal of Organometallic Chemistry, 2005 , vol. 690, # 5 p. 1233 - 1239

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Citation Number: 45

Abstract

A series of 2, 6-bis (imino) pyridyl iron (II) and cobalt (II) complexes [2, 6-(ArNCMe) 2C5H3N] MCl2 (Ar= 2, 6-i-Pr2C6H3, M= Fe: 3a, M= Co: 4a; Ar= 2, 4, 6-i-Pr3C6H2, M= Fe: 3b, M= Co: 4b; Ar= 2, 6-i-Pr2-4-BrC6H2, M= Fe: 3c, M= Co: 4c; Ar= 2, 4-i-Pr2-6-BrC6H2, M= Fe: 3d, M= Co: 4d) has been synthesized, characterized, and investigated as precatalysts for the polymerization of ethylene in the presence of modified methylaluminoxane (MMAO). The ...