Photoactivation of metal-halogen bonds in a Ni(II) NHC complex

Photoactivation of metal-halogen bonds in a Ni(II) NHC complex
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DOI:
10.1039/c2dt32885b
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发表时间:
2013-01-01
影响因子:
4
通讯作者:
Nocera, Daniel G.
Nocera, Daniel G.
中科院分区:
化学2区
文献类型:
--
作者:
Lee, Chang Hoon;Lutterman, Daniel A.;Nocera, Daniel G.

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[Ni-II(mu-Cl)Cl(IPr)](2) (IPr = 1,3-二(2,6-二异丙基苯基)咪唑-2-酰基)的光解作用激活Ni-Cl键生成[Ni-I(mu-Cl)(IPr)](2)。与此光化学一致的是,正方形平面Ni(II)中心的TD-DFT计算表明,光激发导致具有sigma*(Ni- cl)特征的轨道居群。
Photolysis of [Ni-II(mu-Cl)Cl(IPr)](2) (IPr = 1,3-bis(2,6-diisopropylphenyl) imidazol-2-ylidene) activates the Ni-Cl bonds to furnish [Ni-I(mu-Cl)(IPr)](2). Consistent with this photochemistry, a TD-DFT calculation for square planar Ni(II) centre reveals that light excitation leads to the population of orbitals with sigma*(Ni-Cl) character.