Evidence for the formation of terminal hydrides by protonation of an asymmetric iron hydrogenase active site mimic

被引:193
作者
Ezzaher, Salah [1 ]
Capon, Jean-Francois [1 ]
Gloaguen, Frederic [1 ]
Petillon, Francois Y. [1 ]
Schollhammer, Philippe [1 ]
Talarmin, Jean [1 ]
机构
[1] Univ Bretagne Occidentale, CNRS, UMR 6521, Fac Sci, F-29238 Brest 3, France
关键词
D O I
10.1021/ic0703124
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Treatment of [Fe-2(mu-pdt)(CO)(6)] [pdt = S(CH2)(3)S] with dppe (Ph2PCH2CH2PPh2) in refluxing toluene affords the asymmetric complex [Fe-2(mu-pdt)(CO)(4)(dppe)] (1). Protonation of 1 with HBF4-Et2O in CH2Cl2 gives at room temperature the mu-hydrido derivative [Fe-2(mu-pdt)(CO)(4)(dppe)(mu-H)](BF4) (2). Monitoring the reaction by H-1, P-31, and C-13 NMR at low temperature reveals unambiguously that the process of the protonation of 1 implies terminal hydride intermediates.
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收藏
页码:3426 / 3428
页数:3
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