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A Bis(dipyrrinato) Motif as a Building Block for Polynuclear Rhenium(I) Architectures
Author(s) -
Zhang Yuzhen,
Crawley Matthew R.,
Hauke Cory E.,
Friedman Alan E.,
Janik Thomas S.,
Cook Timothy R.
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700771
Subject(s) - metallacycle , chemistry , rhenium , crystallography , phosphine , luminescence , ligand (biochemistry) , stereochemistry , crystal structure , bipyridine , salt (chemistry) , x ray crystallography , diffraction , inorganic chemistry , physics , organic chemistry , catalysis , receptor , biochemistry , optoelectronics , optics
The coordination of a bis(dipyrrin) ligand ( L H 2 ) to Re(CO) 5 Cl delivers a dirhenium salt that serves as a precursor to a dinuclear phosphine compound or as a component of a metallacycle when combined with 4,4′‐bipyridine (bpy) to furnish a tetranuclear [{(CO) 3 Re} 4 L 2 (bpy) 2 ] complex. The distorted nature of the metallacycle was determined by single‐crystal X‐ray diffraction revealing that the Re‐bpy‐Re edges are twisted by approximately 119° and the Re‐ L ‐Re edges are twisted by approximately 88° from the idealized rectangular plane. The Re I metallacycle exhibits luminescence ( λ fluo. = 592 nm; λ phos. = 731 nm) in CH 2 Cl 2 at 77 K.