|
Nitroso refers to a functional group in organic chemistry which has the NO group attached to an organic moiety. As such, various nitroso groups can be categorized as C-nitroso compounds (e.g., nitrosoalkanes; R-N=O), S-nitroso compounds (nitrosothiols; RS-N=O), N-nitroso compounds (e.g., nitrosamines, R1N(-R2)-N=O), and O-nitroso compounds (alkyl nitrites; RO-N=O). Nitrosyls are non-organic compounds containing the NO group, for example directly bound to the metal via the N-atom, giving a metal-NO moiety. Alternatively, a non-metal example is the common reagent nitrosyl chloride (Cl-N=O). Nitric oxide is a stable radical, having an unpaired electron. Reduction of nitric oxide gives the hyponitrite anion, NO−: :NO + e− → NO− Oxidation of NO yields the nitrosonium cation, NO+: :NO → NO+ + e− ==Nitrosyl as a ligand== (詳細はligand in complexes. The resulting complexes are called metal nitrosyls, and can bond to a metal atom in two extreme modes: as NO+ and as NO−. It is generally assumed that NO+ coordinates linearly, the M−N−O angle being 180°, whereas NO− forms a bent geometry, with an M−N−O angle of approximately 120°. However, the results of many studies have shown that the ionic descriptions of the NO ligand do not correlate with metal-NO geometry. A more realistic description of electron-counting in metal-nitrosyl chemistry is given by the Enemark-Feltham notation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nitroso」の詳細全文を読む スポンサード リンク
|