title: First example of a Cu(I)-(η2-O,O)nitrite complex derived from Cu(II)-nitrosyl.
abstract: Copper(II) complex, 1, of the bidentate ligand, L [L = bis(2-ethyl-4-methyl-imidazol-5yl)methane] has been synthesized and structurally characterized. Addition of nitric oxide gas to a degassed acetonitrile solution of 1 yielded the corresponding copper(ii)-nitrosyl complex, 2. In acetonitrile, complex 2 on reaction with water afforded the corresponding copper(I)-nitrite complex, 3. Single crystal structure of complex 3 reveals the bidentate nitrite (η(2)-O,O) bonding. This is the first example of a structurally characterized Cu(I)-(η(2)-O,O)nitrite complex with N-donor ligand. The sequence of the formation of these complexes is just the reverse of the key steps of the postulated nitrite reduction cycle by CuNiRs.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
authors.forename: Apurba
authors.initials: A
authors.lastname: Kalita
authors.forename: Pankaj
authors.initials: P
authors.lastname: Kumar
authors.forename: Ramesh C
authors.initials: RC
authors.lastname: Deka
authors.forename: Biplab
authors.initials: B
authors.lastname: Mondal
mesh_terms: D003300:Copper / Q000737:chemistry*; D008024:Ligands; D008958:Models, Molecular; D009569:Nitric Oxide / Q000737:chemistry; D009573:Nitrites / Q000138:chemical synthesis / Q000737:chemistry*; D009603:Nitroso Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D008024:Ligands; D009573:Nitrites; D009603:Nitroso Compounds; D009942:Organometallic Compounds; D009569:Nitric Oxide; D003300:Copper