Isolation of chloride- and hydride-bridged tri-iron and -zinc clusters in a tris(β-oxo-δ-diimine) cyclophane ligand.
Isolation of chloride- and hydride-bridged tri-iron and -zinc clusters in a tris(β-oxo-δ-diimine) cyclophane ligand.
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在三(β-氧代-β-二亚胺) 环烷配体中分离氯桥和氢化物桥接的三铁和锌簇。
DOI：
10.1039/c9dt00799g
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Murray,LeslieJ
中科院分区：
文献类型：
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作者：
Hong,DaeHo;Knight,BrianJ;Catalano,VincentJ;Murray,LeslieJ
一种含有三个β-oxo-δ-diimine臂的环番配体(H6L)和相应的三铁锌络合物，其中金属离子通过氯化物桥联，即。Fe3Cl3(H3L)(1)和Zn3Cl3(H3L)(2)，或氢化物，即。合成并表征了Fe3H3(H3L)(3)、Zn3H3(H3L)(4)。单晶X-射线衍射、振动和核磁共振光谱分析表明，1采用C3v对称的[Fe3(μ-Cl)3]3+簇合物，其中只有一个半球的配体是金属化的，其余三个酮亚胺中心仍然是质子化的。3和4是通过用KBEt3H取代1和2中的桥联氯化物而合成的，并保留了三个质子化的酮亚胺中心。
A cyclophane ligand (H6L) bearing three β-oxo-δ-diimine arms and the corresponding tri-iron and -zinc complexes in which the metal ions are bridged by either chlorides, viz. Fe3Cl3(H3L) (1) and Zn3Cl3(H3L) (2), or hydrides, viz. Fe3H3(H3L) (3), Zn3H3(H3L) (4), were synthesized and characterized. 1 adopts a chair-shaped C3v-symmetric [Fe3(μ-Cl)3]3+ cluster wherein only one hemisphere of the ligand is metallated and the other three ketoimine sites remain protonated as evidenced by single crystal X-ray diffraction and vibrational and NMR spectroscopic analyses. 3 and 4 were synthesized by substitution of the bridging chlorides in 1 and 2 using KBEt3H and are accessed with retention of the three protonated ketoimine sites.