REFORMULATION FROM X-RAY CRYSTALLOGRAPHY OF A DINUCLEAR THIOCYANATE COMPLEX OF RHENIUM. THE FIRST OBSERVATION OF SOLELY N-BONDED, BRIDGING THIOCYANATE
REFORMULATION FROM X-RAY CRYSTALLOGRAPHY OF A DINUCLEAR THIOCYANATE COMPLEX OF RHENIUM. THE FIRST OBSERVATION OF SOLELY N-BONDED, BRIDGING THIOCYANATE
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铼双核硫氰酸盐配合物的 X 射线晶体学重构。
DOI：
10.1002/chin.198002080
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
H. S. Trop
中科院分区：
文献类型：
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作者：
F. Cotton;A. Davison;W. Ilsley;H. S. Trop
简介 1966 年，在对四键化学反应性进行一些最早的研究过程中，在硫氰酸钠与 («-Bu4N) 4Re2Cl8 反应的产物中发现了一种物质，其分子式为 (n-Bu4N) 3Re2 (NCS) 10 (CO) 2。这一建议主要基于两个证据。首先，红外光谱中的强带约为。 1920 年和大约。 1885 cm" 1 表明存在两个 CO 基团（推测源自反应溶剂丙酮）。该假设被认为是必要的，因为在该频率范围内没有已知形式的配位硫氰酸根离子产生强红外带。其次，所提出的公式与分析数据一致。磁和电导测量也与该公式一致，其相关特征是奇数个电子和 3:1然而，式 (n-Bu4N) 3Re2 (NCS) 10 (CO) 2 似乎总是配体过多，因此其正确性值得怀疑。
Introduction In 1966, in the course of some of the earliest investigations2 of the chemical reactivity of quadruple bonds, there was found among the products of the reaction of sodium thiocyanate with («-Bu4N) 4Re2Cl8 a substance for which the formula (n-Bu4N) 3Re2 (NCS) 10 (CO) 2 was suggested. This suggestion rested primarily on two pieces of evidence. First, strongbands in the infrared spectrum at ca. 1920 and ca. 1885 cm" 1 were taken to indicate the presence of two CO groups (presumed to have been derived from the reactionsolvent, acetone). This postulate was considered necessary since there was no known form of coordinated thiocyanate ion giving rise to strong infrared bands in that frequencyrange. Second, the proposed formula agreed with analytical data. Magnetic and con-ductance measurements were also consistent with this formula, of which the pertinent features are an odd number of electrons and a 3: 1 cation to anion ratio, respectively. The formula (n-Bu4N) 3Re2 (NCS) 10 (CO) 2 has, however, always seemed somewhat overendowed with ligands and, on that ground, questionable. Proof of its correctness through