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Metal Oxo Cation Receptors: Multimode Coordination to the Dioxoosmium( VI ) Cation
Author(s) -
Borovik A. S.,
Bois Justin Du,
Raymond Kenneth N.
Publication year - 1995
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.199513591
Subject(s) - chemistry , ligand (biochemistry) , moiety , coordination sphere , metal , hydrogen bond , urea , electrochemistry , osmium , stereochemistry , crystallography , medicinal chemistry , receptor , molecule , organic chemistry , catalysis , ruthenium , electrode , biochemistry
New tetraamidato ligands with appended urea moieties have the requisite electrochemical and structural properties to stabilize the dioxoosmium(IV) cation through multiple interactions. In the corresponding 1:1 complexes four strong bonds between metal and nitrogen donor and an additional hydrogen bond between each oxo ligand and a C(O)NHR moiety are responsible for the stability. The primary coordination sphere of an osmium complex of this type is shown on the right.