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Mononuclear Pentalene and Methylpentalene Complexes of Titanium, Zirconium, and Hafnium
Author(s) -
Jonas Klaus,
Kolb Peter,
Kollbach Guido,
Gabor Barbara,
Mynott Richard,
Angermund Klaus,
Heinemann Oliver,
Krüger Carl
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199717141
Subject(s) - homoleptic , pentalene , hafnium , zirconium , ligand (biochemistry) , chemistry , titanium , inorganic chemistry , metal , molecule , organic chemistry , receptor , biochemistry
Not only mononuclear complexes having a single pentalene or methylpentalene ligand but also homoleptic complexes with two η 8 ‐C 8 H 6 or η 8 ‐C 8 H 5 CH 3 ligands can be formed by titanium, zirconium, and hafnium. The syntheses, which start from the corresponding metallocene dihalides, are particularly simple. The homoleptic pentalene complex 1 reacts with [ZrCl 4 (thf) 2 ] to form the dichloro complex 2 , the first mononuclear “half‐sandwich” complex having a pentalene ligand.