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Vivid Wording for the Chemistry of Group 4 Metallocene Complexes
Author(s) -
Rosenthal Uwe
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202006969
Subject(s) - moiety , intramolecular force , hydride , organometallic chemistry , metallocene , chemistry , group 2 organometallic chemistry , titanium , molecule , crystallography , metal , group (periodic table) , stereochemistry , ring (chemistry) , crystal structure , organic chemistry , polymerization , polymer
Three selected examples for the use of unusual wording to describe the organometallic chemistry of Group 4 metallocenes are explained and discussed. The term “tuck(ed)‐in” concerns the behavior of decamethyltitanocene [(C 5 Me 5 ) 2 Ti] and similar complexes in which one or two methyl groups form the titanium hydride complex [(C 5 Me 5 )(C 5 Me 4 CH 2 )TiH] or other hydride complexes by C−H activation. In the so‐called “merry‐go‐round reaction” the rearrangement of C atoms bound to titanium in organometallic molecules is described which corresponds to the rotation of two C atoms along with a rotation of the six‐membered ring in a dihydroindenyl moiety at titanium. In the third example “migration” or “tobogganing” concerns the “sliding” of titanocene along the chain of a linear polyyne by coordination to one or more triple bonds. In all these reactions changes of the coordination mode of the metal at Cp or substrate ligands by intramolecular dynamics occur.