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Synthesis and Molecular Structures of Ferrocene and Zirconocene Featuring Bis(di(3,5‐di–tert.‐butyl)phenylphosphino) Groups
Author(s) -
Savateev Aleksandr,
Ferreira Leonardo Da Cunha,
Nieger Martin,
Vieira Marques Maria de Fátima,
Kostyuk Aleksandr,
Grafova Iryna,
Grafov Andriy
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700695
Subject(s) - ferrocene , metallocene , chemistry , organic chemistry , polymerization , electrochemistry , electrode , polymer
New bulky diphosphino‐ferrocene 4 and diphosphino‐zirconocene 8 , modified with a number of tert ‐butyl groups, were synthesized and characterized by single crystal X‐Ray and/or NMR analyses. Complex [NiCl 2 ( 4 )] was prepared and its molecular structure was established by a single crystal X‐Ray analysis. Buried percent volume (% V Bur ) of novel bulky diphosphino‐ferrocene 4 was calculated to be greater than that of dppf. Because of this [NiCl 2 ( 4 )] catalyst demonstrated 2.5 times higher activity compared to [NiCl 2 ( dppf )] in the model ethylene polymerization reaction.