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A Square‐Planar Ruthenium(II) Complex with a Low‐Spin Configuration
Author(s) -
Askevold Bjorn,
Khusniyarov Marat M.,
Herdtweck Eberhardt,
Meyer Karsten,
Schneider Sven
Publication year - 2010
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.201002296
Subject(s) - ruthenium , ground state , planar , multiplicity (mathematics) , spin (aerodynamics) , yield (engineering) , square (algebra) , crystallography , chemistry , materials science , physics , atomic physics , geometry , catalysis , mathematics , computer science , metallurgy , organic chemistry , computer graphics (images) , thermodynamics
Ground‐about : The ruthenium(II) complex [RuCl{N(CH 2 CH 2 P t Bu 2 ) 2 }] ( B ) is obtained in high yield by the reaction of [RuCl 2 {HN(CH 2 CH 2 P t Bu 2 ) 2 }] ( A ) with KO t Bu. Complex B exhibits an unusual electronic low‐spin ( S =0) ground‐state configuration. Comparison with Caulton's [RuCl{N(SiMe 2 CH 2 P t Bu 2 ) 2 }] (ground state: S =1) shows that the ground‐state spin multiplicity in these complexes is controlled by the N→Ru π‐donor strength.