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报道我们对某些V/S ,V/Fe/S和Mn/O簇合物溶液化学的核磁研究 .(Et4N) [V4S4(C4H8NCS2 ) 6](1 )的1 HNMR谱包含三个宽峰 ,δ4.77,5.1 7和 7.57,分别归属为端基与桥基配体的α H .游离配体信号的出现表明了溶液中发生配体与溶剂分子的交换反应 .对一系列 [VFe3S4(R2 NCS2 ) 4 ]- 簇合物 (R2 =OC4H8(2 ) ,Et2 (3) )进行了1 HNMR表征 .钒与三个铁中心的配体氢谱被分别归属 .对NMR谱的时间跟踪发现位于δ1 9.6(2 )以及δ34.2(3)的信号逐渐增长 ,这意味着新物种形成 .合成反应的动态NMR跟踪指认了新物种为Fe4S4(R2 NCS2 ) 4 .提出了溶液中簇骼金属原子交换机理 .包含H2 O和NO3配体的单核锰bpy配合物 (4)的氢谱指示出这些单齿配体的可交换性 .它促使配合物 4成为含有两个单核Mn分子的包容化合物 .
We report our NMR studies on solution chemistry of certain V / S, V / Fe / S and Mn / O cluster complexes.1H NMR spectrum of (Et4N) [V4S4 (C4H8NCS2) 6] (1) δ4.77, 5.17 and 7.57, respectively, assigned to the terminal group and the bridge ligand α H. The appearance of free ligand signal indicates the exchange reaction of the ligand and solvent molecules in the solution.For a series of [VFe3S4 (R2 1H NMR was used to characterize the crystal structure of vanadium with three iron centers.The time traces of the NMR spectra were found to be in the The signal of δ1 9.6 (2) and δ34.2 (3) gradually increased, which meant the formation of new species.Dynamic NMR tracking of the synthetic reaction identified the new species as Fe4S4 (R2 NCS2) 4. The cluster metal atoms Exchange mechanism.The hydrogen spectrum of the mononuclear manganese bpy complex (4) containing H 2 O and NO 3 ligands indicates the exchangeability of these monodentate ligands, which prompted the complex 4 to become an inclusion containing two mononuclear Mn molecules Compound.