Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
Inorg Chem. 2011 Apr 18;50(8):3206-12. doi: 10.1021/ic1011988. Epub 2011 Mar 15.
Two copper(II) complexes, 1 and 2 with L(1) and L(2) [L(1) = 2- aminomethyl pyridine; L(2) = bis-(2-aminoethyl)amine], respectively, in degassed acetonitrile solvent, on exposure to NO gas, were found to form a thermally unstable [Cu(II)-NO] intermediate which then resulted in the reduction of the copper(II) centers. The formation of the [Cu(II)-NO] intermediate was evidenced by UV-visible, FT-IR, and EPR spectroscopic studies. The reduction of the copper(II) centers by nitric oxide afforded ligand transformation through diazotization at the primary amine coordination site, in both cases. The modified ligands, in each case, were isolated and characterized.
在脱气乙腈溶剂中，两个铜（II）配合物 1 和 2 分别与 L(1) 和 L(2)（L(1) = 2-氨甲基吡啶；L(2) = 双-(2-氨乙基)胺）反应，在接触 NO 气体时，形成热不稳定的[Cu(II)-NO]中间体，随后导致铜（II）中心还原。通过紫外可见、FT-IR 和 EPR 光谱研究证实了[Cu(II)-NO]中间体的形成。一氧化氮还原铜（II）中心，在两种情况下，通过在一级胺配位位点的重氮化作用，使配体发生转化。在每种情况下，都分离并表征了修饰后的配体。
