Preparation of methyl and acetyl complexes of iron(II)
Preparation of methyl and acetyl complexes of iron(II)
复制标题
铁(II)甲基和乙酰基络合物的制备
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
G. Bellachioma
中科院分区：
文献类型：
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作者：
G. Reichenbach;G. Cardaci;G. Bellachioma
合成了配合物[Fe(CO)2(PMe3)2(Me)X]，其中X = Br, Cl， CN， NCS， CNO， OMe或Me，并根据红外和核磁共振证据确定了其结构。该配合物与CO反应迅速且可逆，生成乙酰基衍生物，其乙酰基相对于X处于顺式位置。当X = I、Br或Cl时，顺式异构体缓慢重排至反式异构体，直至达到平衡。结果用配体的σ-和π接受能力来解释。
The complexes [Fe(CO)2(PMe3)2(Me)X], where X = Br, Cl, CN, NCS, CNO, OMe, or Me, have been synthesized and the structure assigned on the basis of i.r. and n.m.r. evidence. The complexes react readily and reversibly with CO to give the acetyl derivatives with the acetyl group in the cis position relative to X. When X = I, Br, or Cl the cis isomer rearranges slowly to the trans isomer until an equilibrium is obtained. The results are interpreted in terms of the σ- and π-accepting capabilities of the ligands.