首页> 外文期刊>Inorganic Chemistry Communications >Synthesis,crystal structure and NMR of [Na(DB18C6)(CH_3CN)]_3[alpha-AsM_(12)O_(40)](M=Mo/W)
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Synthesis,crystal structure and NMR of [Na(DB18C6)(CH_3CN)]_3[alpha-AsM_(12)O_(40)](M=Mo/W)

机译:[Na(DB18C6)(CH_3CN)] _ 3 [α-AsM_(12)O_(40)](M = Mo / W)的合成,晶体结构和NMR

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摘要

Two super-molecular complexes [Na(DB18C6)(CH_3CN)]_3[alpha-AsM_(12)O_(40)](M=Mo/W)were obtained by solvothermal reaction and characterized by IR,~1H ~(13)C and gUMBC NMR,X-ray.The result reveals that the complex consists of a [alpha-AsM_(12)O_(40)]~(3-)(M=Mo/ W)anion with alpha-Keggin structure,and three complex [Na(DB18C6)(CH_3CN)]~+ cations in which every sodium ion is located in the cavity of dibenzo-18-crown-6 with 6 Na-O bonds and coordinated with one of the terminal O atom of [alpha-AsM_(12)O_(40)]~(3-)(M=Mo/W)and the N atom of CH_3CN from two sides of the distorted DB18C6 plane,respectively.The three terminal O atoms linked with sodium ion are from a single M_3O_(13)(M=Mo/W)triplet of the alpha-Keggin metalatoarsenate anion,and M-O_b(M=Mo/W)bonds exhibit alternating single-double bond character.
机译:通过溶剂热反应得到两个超分子配合物[Na(DB18C6)(CH_3CN)] _ 3 [α-AsM_(12)O_(40)](M = Mo / W),并用IR〜1H〜(13)表征。结果表明该络合物由具有α-Keggin结构的[α-AsM_(12)O_(40)]〜(3-)(M = Mo / W)阴离子和三个络合的[Na(DB18C6)(CH_3CN)]〜+阳离子,其中每个钠离子位于带有6个Na-O键的dibenzo-18-crown-6空腔中,并与[alpha]的一个末端O原子配位-AsM_(12)O_(40)]〜(3-)(M = Mo / W)和CH_3CN的N原子分别从扭曲的DB18C6平面的两侧开始。与钠离子连接的三个末端O原子分别来自α-Keggin金属砷酸根阴离子的一个M_3O_(13)(M = Mo / W)三胞胎,M-O_b(M = Mo / W)键表现出交替的单双键特征。

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