Synthesis and structure of the organometallic MFe2(μ3-S)2 clusters (M = Mo or Fe)
Synthesis and structure of the organometallic MFe2(μ3-S)2 clusters (M = Mo or Fe)
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DOI：
10.1039/b419051c
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发表时间：
2005-01-01
影响因子：
4
通讯作者：
Coucouvanis, D
中科院分区：
文献类型：
--
作者：
Han, J;Coucouvanis, D
具有MFe_2（mu（3）-S）（2）核的新型金属有机簇合物（M = Mo或Fe）是在高压CO下由无机[MoFe 3S 4]或[Fe 4S 4]簇合物合成的。（Cl-4-cat）（2）Mo_2Fe_6S_8（PR_3）（6）[R = Et，Pr_n]与高压CO反应生成[MoFe_2S_2]（4+）团簇，经灰化柱层析后，（Cl-4-cat）Mo（O）Fe 2S 2（CO）（n）（PR 3）（6-n）[n = 4，Et = I，Pr-n = II; n = 5，Et = III]。[MoFe_2S_2]（4+）簇合物（Cl-4-cat）（2）Mo-Fe_2S_2（CO）（2）（depe）（2）（IV）也是通过（Cl-4-cat）MoFe_3S_3（CO）（6）（PEt_3）（2）与depe的还原去偶联反应得到的。对于[Fe-3（mu（3）-S）（2）]（4+）簇合物，[Fe_4S_4（PcHex（3））（4）]（BPh_4）与高压CO反应生成新的Fe_3S_2（CO）（7）（PcHex）（2）（V）化合物。这些反应推广了从无机团簇制备有机金属化合物的方法。所有的化合物已通过单晶X射线晶体学表征。提出了合成MFe_2（mu（3）-S）_（2）簇合物（M = Mo或Fe）的可能反应途径。
New organometallic clusters with the MFe2(mu(3)-S)(2) core (M = Mo or Fe) have been synthesized from inorganic [MoFe3S4] or [Fe4S4] clusters under high pressure CO. The reaction of (Cl-4-cat)(2)Mo2Fe6S8(PR3)(6) [R = Et, Pr-n] with high pressure CO produced the crystalline [MoFe2S2](4+) clusters, (Cl-4-cat)Mo(O)Fe2S2(CO)(n)(PR3)(6-n) [n = 4, Et = I, Pr-n = II; n = 5, Et = III] after ash column chromatography. The similar [MoFe2S2](4+) cluster, (Cl-4-cat)(2)Mo-Fe2S2(CO)(2)(depe)(2) ( IV), also has been achieved by the reactions of (Cl-4-cat)MoFe3S3(CO)(6)(PEt3)(2) with depe by reductive decoupling of the cluster. For the [Fe-3(mu(3)-S)(2)](4+) cluster, [Fe4S4(PcHex(3))(4)] (BPh4) was reacted with high pressure CO to produce a new Fe3S2(CO)(7)(PcHex)(2) (V) compound. These reactions generalized the preparation of organometallic compounds from inorganic clusters. All the compounds have been characterized by single crystal X-ray crystallography. A possible reaction pathway for the synthesis of the MFe2(mu(3)-S)(2) clusters (M = Mo or Fe) has also been suggested.