fac-[Fe(II)(CN)(3)(CO)(3)](-) and cis-[Fe(II)(CN)(4)(CO)(2)](2)(-): new members of the class of [Fe(II)(CN)(x)(CO)(y)] compounds.
fac-[Fe(II)(CN)(3)(CO)(3)](-) and cis-[Fe(II)(CN)(4)(CO)(2)](2)(-): new members of the class of [Fe(II)(CN)(x)(CO)(y)] compounds.
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DOI：
10.1021/ic015604y
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发表时间：
2002-01
影响因子：
4.6
通讯作者：
Jian-Bing Jiang;S. Koch
中科院分区：
文献类型：
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作者：
Jian-Bing Jiang;S. Koch
Fe（CO）（4）I（2）与NaCN或KCN在甲醇中反应生成M[Fe（II）（CN）（3）（CO）（3）]（M = Na，K），可转化为[Ph（4）E][Fe（II）（CN）（3）（CO）（3）]（E = P，As）。通过K-1和[Ph（4）As]-1·H（2）O的X-射线晶体结构确定了fac-[Fe（II）（CN）（3）（CO）（3）]（-）（1）阴离子的结构。化合物1还通过IR、拉曼和（13）C NMR进行了表征。分析了1的振动光谱中CO和CN伸缩模的耦合。Na-1与NaCN反应生成Na（2）cis-[Fe（II）（CN）（4）（CO）（2）]（Na-2），其结构表征为[Ph（4）P][Et（4）N]-2。化合物1和2是通式[Fe（II）（CN）（（6-x））（CO）（x）]（x-4）的化合物系列的另外成员。[Fe（CN）（x）（CO）（y）]化合物由于在氢化酶中出现这种配位模式而受到关注。
The reaction of Fe(CO)(4)I(2) with NaCN or KCN in methanol gives M[Fe(II)(CN)(3)(CO)(3)] (M = Na, K), which can be converted to [Ph(4)E][Fe(II)(CN)(3)(CO)(3)] (E = P, As). The structure of the fac-[Fe(II)(CN)(3)(CO)(3)](-) (1) anion was established by the X-ray crystal structures of K-1 and [Ph(4)As]-1.H(2)O. Compound 1 has also been characterized by IR, Raman, and (13)C NMR. The coupling of the CO and CN stretching modes in the vibrational spectra of 1 have been analyzed. The reaction of Na-1 with NaCN gives Na(2) cis-[Fe(II)(CN)(4)(CO)(2)] (Na-2), which has been structurally characterized as [Ph(4)P][Et(4)N]-2. Compounds 1 and 2 are additional members of the series of compounds of general formula [Fe(II)(CN)((6-x))(CO)(x)](x-4). [Fe(CN)(x)(CO)(y)] compounds are of interest due to the occurrence of such coordination modes in hydrogenase enzymes.