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Frontispiece: Reactivity Study of Pyridyl‐Substituted 1‐Metalla‐2,5‐diaza‐cyclopenta‐2,4‐dienes of Group 4 Metallocenes
Author(s) -
Becker Lisanne,
Reiß Fabian,
Altenburger Kai,
Spannenberg Anke,
Arndt Perdita,
Jiao Haijun,
Rosenthal Uwe
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201683162
Subject(s) - metallocene , reactivity (psychology) , molecule , zirconium , group (periodic table) , acetonitrile , chemistry , crystallography , medicinal chemistry , stereochemistry , inorganic chemistry , polymerization , organic chemistry , medicine , alternative medicine , pathology , polymer
Group 4 Metallocenes The picture highlights the central role of the symmetrically pyridyl‐substituted 1‐metalla‐2,5‐diaza‐cyclopenta‐2,4‐dienes, Cp* 2 M(N=C(2‐py)−C(2‐py)=N), the youngest members of the Group 4 metallocene (M = Ti, Zr) family. The mystic tree and its reflection on the water surface connects these substrates with the unsymmetrically and fascinating molecules gained from their reactions with small molecules like H 2 , CO 2 , CH 3 −C≡N, and SOCl 2 . For example, for the zirconium complex a reversible coordination of CO 2 to the five‐membered cycle was observed. In case of the titanium compound and CH 3 −C≡N a coupling product of three acetonitrile molecules was obtained. For more details, see the Full Paper by U. Rosenthal et al. on page 10826 ff.