Square-planar Co( iii ) in {O 4 } coordination: large ZFS and reactivity with ROS
Square-planar Co( iii ) in {O 4 } coordination: large ZFS and reactivity with ROS
复制标题
{O 4 } 配位的方形平面 Co( iii )：大 ZFS 和与 ROS 的反应性
DOI：
10.1039/c8cc04464c
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发表时间：
2018
影响因子：
4.9
通讯作者：
Ozerov, M.
中科院分区：
文献类型：
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作者：
Steele, Jennifer L.;Tahsini, Laleh;Sun, Chen;Elinburg, Jessica K.;Kotyk, Christopher M.;McNeely, James;Stoian, Sebastian A.;Dragulescu-Andrasi, Alina;Ozarowski, Andrew;Ozerov, M.
报道了扭曲的正方形平面全氟频哪醇钴化合物[CoII（pinF）2]2-，1氧化为[CoIII（pinF）2]1-，2。刚性正方形平面2具有中间自旋，S = 1，基态和非常大的零场分裂（zero-field splitting），D = 67.2 cm−1;| E| = 18.0 cm-1，（E/D = 0.27），g = 2.10，g |= 2.25且χTIP = 1950 × 10 - 6 cm3 mol-1。这种Co（III）物种2与ROS反应，氧化两个（pinF）2−配体，形成四面体[CoII（Hpfa）4]2−，3。
Oxidation of distorted square-planar perfluoropinacolate Co compound [CoII(pinF)2]2−, 1, to [CoIII(pinF)2]1−, 2, is reported. Rigidly square-planar 2 has an intermediate-spin, S = 1, ground state and very large zero-field splitting (ZFS) with D = 67.2 cm−1; |E| = 18.0 cm−1, (E/D = 0.27), g⊥ = 2.10, g‖ = 2.25 and χTIP = 1950 × 10−6 cm3 mol−1. This Co(III) species, 2, reacts with ROS to oxidise two (pinF)2− ligands to form tetrahedral [CoII(Hpfa)4]2−, 3.