| 135952-59-9

• CAS: 135952-59-9
• 化学式: C₇H₂CoO₆*Na
• 分子量: 264.072
• InChiKey: CTZABURPVXRSDD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
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• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  在 CO 作用下， 以 四氢呋喃 为溶剂， 生成
  参考文献：
  名称：

  四羰基钴酸钠（1-）与活化烯烃的取代反应。烯烃羰基配合物Na [Co（CO）4-x（烯烃）x]（x = 1和2）的合成，表征和反应

  摘要：

  Reactions of Na[Co(CO)4] with the activated alkenes maleic anhydride (MA), dimethyl maleate (DM), and fumaronitrile (FN) in THF solution under photochemical conditions afford the monosubstituted products Na[Co(CO)3(alkene)]. Under thermal conditions, in THF at reflux, reactions of Na[Co(CO)4] with MA, FN, and dimethyl fumarate (DF) each afford the disubstituted complexes Na[Co(CO)2(alkene)2]. In the corresponding reaction of Na[Co(CO)4] with DM, the alkene undergoes isomerization to give Na[Co(CO)2(DF)2]. Tetracyanoethylene (TCNE) and Na[Co(CO)4] react even at -60 to 0-degrees-C to furnish (Na[Co(CO)3(TCNE)]. All of the aforementioned complexes were isolated as different THF solvates and characterized by a combination of elemental analysis and IR and H-1 and C-13{H-1} NMR spectroscopies. They react with CO to yield one or both of Na[Co(CO)3(alkene)] and Na[Co(CO)4] and with other activated alkenes (alkene2) to afford one or both of Na[Co(CO)2(alkene1)(alkene2)] and Na[Co(CO)4-x(alkene2)x] (x = 1 or 2). The reactivities of the various alkenes toward Na[Co(CO)4] and of Na[Co(CO)3(alkene)] and Na[Co(CO)2(alkene)2] toward CO and alkene2 are compared. The structure of Na[Co(CO)2(DF)2].THF was elucidated by a single-crystal X-ray diffraction analysis: space group P1BAR, with a = 13.096 (2) angstrom, b = 18.287 (2) angstrom, c = 10.195 (2) angstrom, a = 90.49 (1)-degrees, beta = 91.16 (1)-degrees, gamma = 107.24 (1)-degrees, and Z = 4. The structure was solved and refined to R = 0.102 and R(w) = 0.069. The compound is a dimer of Na[Co(CO)2(DF)2].THF, formed by interaction of each Na+ ion with the oxygen atoms of two fumarate C = O groups from each [Co(CO)2(DF)2]- anion and with the oxygen atom of a THF molecule. The arrangement of these five oxygen donors around the Na+ ion is trigonal bipyramidal, whereas the geometry of the two CO carbons and the midpoints of the two C = C bonds about the Co atom is approximately tetrahedral.

  DOI：

  10.1021/om00055a018