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A Stable Crystalline Copper(I)–N 2 O Complex Stabilized as the Salt of a Weakly Coordinating Anion
Author(s) -
Zhuravlev Vadim,
Malinowski Przemysław J.
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201806836
Subject(s) - chemistry , salt (chemistry) , ligand (biochemistry) , copper , metal , oxide , crystal structure , ion , crystallography , nitrous oxide , inorganic chemistry , coordination complex , organic chemistry , biochemistry , receptor
Nitrous oxide is considered a poor ligand, and therefore only a handful of well‐defined metal–N 2 O complexes are known. Oxidation of copper powder with an extreme oxidant, [Ag 2 I 2 ][ An ] 2 ([ An ] − =[Al(OC(CF 3 ) 3 ) 4 ] − ) in perfluorinated hexane leads to Cu I [ An ], the first auxiliary ligand‐free Cu I salt of the perfluorinated alkoxyaluminate anion. The compound is capable of forming a stable and crystalline complex with nitrous oxide, Cu(N 2 O)[ An ], where the Cu−N 2 O bond is by far the strongest among all other molecular metal–N 2 O complexes known. Thorough characterization of the compounds together with the crystal structure of Cu(N 2 O)[ An ] complex supported with DFT calculations are presented. These give insight into the bonding in the Cu + –N 2 O system and confirm N‐end coordination of the ligand.