NEW THERMALLY STABLE HYDROPEROXO-COPPER AND PEROXO-COPPER COMPLEXES
NEW THERMALLY STABLE HYDROPEROXO-COPPER AND PEROXO-COPPER COMPLEXES
复制标题
DOI：
10.1021/ic00040a003
复制
发表时间：
1992-07-08
影响因子：
4.6
通讯作者：
ZUBIETA, J
中科院分区：
文献类型：
--
作者：
MAHROOFTAHIR, M;MURTHY, NN;ZUBIETA, J
用不对称双核配体UN-OH与Cu(I)前驱体氧化合成了新的热稳定的过氧和氢过氧配合物[Cu2(UN-O-)(O2)]+(6)和[Cu2(UN-O-)(O2H)]2+(7)。它们的稳定性表明能够获得分析和磁性数据以及固态紫外-可见或红外光谱，并重新溶解材料，获得与“原位”氧化直接形成的物种一致的紫外-可见光谱。在真空条件下加热从固体6中去除O2的过程约为25分解。固体6和7的EXAFS光谱显示Cu…Cu = 3.28(7)和2.95(7)埃。不对称Cu(II)-O-O…建议6的Cu（II）连接和7的mu-1,1-氢过氧配位。
New thermally stable peroxo and hydroperoxo complexes [Cu2(UN-O-)(O2)]+ (6) and [Cu2(UN-O-)(O2H)]2+ (7) have been synthesized by oxygenation of Cu(I) precursors with an unsymmetrical dinucleating ligand UN-OH.Their stability is indicated by the ability to obtain analytical and magnetic data and solid-state UV-vis or infrared spectra and to redissolve the materials, obtaining UV-vis spectra in agreement with the species directly formed by oxygenation 'in situ". Removal of O2 from solid 6 by heating under vacuum occurs with approximately 25 decomposition. EXAFS spectroscopy of solids 6 and 7 gives Cu...Cu = 3.28 (7) and 2.95 (7) angstrom, respectively. An unsymmetrical Cu(II)-O-O...Cu(II) ligation for 6 and a mu-1,1-hydroperoxo coordination in 7 are suggested.