Analysis and isolation of cationic rhenium(I) and ruthenium(II) multinuclear complexes using size-exclusion chromatography
Analysis and isolation of cationic rhenium(I) and ruthenium(II) multinuclear complexes using size-exclusion chromatography
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DOI：
10.2116/analsci.22.545
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发表时间：
2006-04-01
影响因子：
1.6
通讯作者：
Ishitani, O
中科院分区：
文献类型：
--
作者：
Takeda, H;Yamamoto, Y;Ishitani, O
以甲醇和乙腈50:50 （v/v）的混合物，以CH3CO2NH4为洗脱液，通过排粒径色谱（SEC）成功地分离了各种阳离子铼(I)和钌（II）的单核和多核配合物。相对分子质量的对数在分布系数上呈精确的线性关系：对于线形铼(I)多核配合物，对数M-w = -2.86K(SEC) + 5.24 (r = -0.990, n = 15)；对于环形铼(I)多核配合物，log Mw = -2.94K(SEC) + 5.40 (r = -0.999; n = 5)；对于包括钌（II）在内的双金属配合物，log M-w = -0.40K(SEC) + 3.37 （r = -0.959; n = 6）。这种分离方法适用于从混合物中分离阳离子多核配合物的制备规模。
Various cationic rhenium(I) and ruthenium(II) mono- and multinuclear complexes were successfully separated by size-exclusion chromatography (SEC), using a 50:50 (v/v) mixture of methanol and acetonitrile with CH3CO2NH4 as an eluent. The logarithms of the molecular weights were accurately linear in the distribution coefficients: for linear-shaped rhenium(I) multinuclear complexes, log M-w = -2.86K(SEC) + 5.24 (r = -0.990 and n = 15); for ring-shaped rhenium(I) multinuclear complexes, log Mw = -2.94K(SEC) + 5.40 (r = -0.999; n = 5); for bimetallic complexes including ruthenium(II), log M-w = -0.40K(SEC) + 3.37 (r = -0.959; n = 6). This separation method is applicable to the preparative-scale separation of cationic multinuclear complexes from a mixture.