ELECTRONIC-SPECTRA OF NEGATIVE-IONS OF SOME METAL PHTHALOCYANINES
ELECTRONIC-SPECTRA OF NEGATIVE-IONS OF SOME METAL PHTHALOCYANINES
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DOI：
10.1021/ic50114a003
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发表时间：
1972-01-01
影响因子：
4.6
通讯作者：
YANDLE, JR
中科院分区：
文献类型：
--
作者：
CLACK, DW;YANDLE, JR
金属酞菁在四氢呋喃中用钠还原(或在汞池或铂阴极上电化学还原)产生一系列负离子，对应于电子的逐步加成。与锌(II)、镍(II)、铁(II)、锰(II)、镁(II)和AlmCl的络合物形成四个不同的还原阶段，而对于CO11Pc则有五个还原步骤。报道了金属邻苯二甲菁负离子的电子吸收光谱，并用其讨论了它们的电子结构。光谱观察表明，除了ConPc和FenPc外，所有的配合物都给出了还原物种，其中额外的电子基本上限制在环状轨道上，例如。ConPc和FenPc的还原，可能还有MnlrPc的还原似乎涉及到配体(例如)和金属轨道上的电子加成。
Reduction of metal phthalocyanines with sodium in tetrahydrofuran (or electrochemically at a mercury pool or platinum cathode) produces a series of negative ions, corresponding to the stepwise addition of electrons. The complexes with Zn (II), Ni (II), Fe (II), Mn (II), Mg (II), and AlmCl form four distinct reduction stages, but for Co11 Pc five reduction steps are found. The electronic absorption spectra are reported and used to discuss the electronicstructures of the metal phthalo-cyanine negative ions. The spectroscopic observations indicate that all complexes, with the exception of ConPc and FenPc give reduced species in which the additional electrons are confined essentially to the ring eg orbital. Reduction of ConPc and FenPc and possibly also MnlrPc appears to involve electron addition to both ligand (eg) and metal orbitals.