具有短的无支撑的金属-金属键的两坐标第一过渡金属配合物。
Two-coordinate first row transition metal complexes with short unsupported metal-metal bonds.
机构信息
Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, USA.
出版信息
J Am Chem Soc. 2010 Dec 15;132(49):17399-401. doi: 10.1021/ja1089777. Epub 2010 Nov 19.
A series of first row transition metal complexes with unsupported M-Fe bonds, (3,5-(i)Pr2-Ar*)MFe(η(5)-C5H5)(CO)2 (M = Fe (1), Mn (2), Cr (3), 3,5-(i)Pr2-Ar* = -C6H-2,6-(C6H2-2,4,6-(i)Pr3)2-3,5-(i)Pr2), was synthesized by salt metathesis. They were characterized by (1)H NMR, UV-vis spectroscopy, X-ray crystallography, and SQUID magnetic measurements. Two distinct Fe atoms in 1 were confirmed by Mössbauer spectroscopy. All three compounds feature short metal-metal bond distances (Fe-Fe, 2.3931(8) Å (1); Mn-Fe, 2.4512(5) Å (2); Cr-Fe, 2.4887(5) Å (3)). Their DFT computed structures were in excellent agreement with the experimental data and revealed a dative bonding interaction between the metals.
一系列具有无支撑 M-Fe 键的第一过渡金属配合物，(3,5-(i)Pr2-Ar*)MFe(η(5)-C5H5)(CO)2（M = Fe(1)，Mn(2)，Cr(3)，3,5-(i)Pr2-Ar* = -C6H-2,6-(C6H2-2,4,6-(i)Pr3)2-3,5-(i)Pr2），通过盐交换反应合成。它们通过（1）H NMR、UV-vis 光谱学、X 射线晶体学和 SQUID 磁测量进行了表征。1 中的两个不同的 Fe 原子通过穆斯堡尔光谱得到证实。所有三种化合物都具有较短的金属-金属键距离（Fe-Fe，2.3931(8) Å(1)；Mn-Fe，2.4512(5) Å(2)；Cr-Fe，2.4887(5) Å(3)）。它们的 DFT 计算结构与实验数据非常吻合，并揭示了金属之间的配位键相互作用。
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