| 136706-72-4

• CAS: 136706-72-4
• 化学式: CF₃O₃S*C₉H₁₉FeO₃P₂
• 分子量: 442.113
• InChiKey: UJOJXOMZFZANGG-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  trans-(CO)3Fe(P(CH3)3)2 、 三氟甲磺酸 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  Heats of protonation of transition-metal complexes: the effect of phosphine basicity on metal basicity in CpIr(CO)(PR3) and Fe(CO)3(PR3)2

  摘要：

  Titration calorimetry has been used to determine the effects of phosphine ligand basicity on the heats of protonation (DELTA-H(HM)) of the metal in the CpIr(CO)(PR3) and Fe(CO)3(PR3)2 complexes (PR3 = P(p-ClC6H4)3, PPh3, P(p-MeOC6H4)3, PMePh2, PMe2Ph, PMe3) With CF3SO3H at 25.0-degrees C in 1,2-dichloroethane solvent. The DELTA-H(HM) values of the CpIr(CO)(PR3) compounds range from -29.2 (PR3 = P(p-ClC6H4)3) to -33.2 kcal mol-1 (PR3 = PMe3), and those of the Fe(CO)3(PR3)2 compounds range from -14.1 (PR3 = PPh3) to -23.3 kcal mol-1 (PR3 = PMe3). Linear correlations of metal basicity (DELTA-H(HM)) with phosphine basicity (DELTA-H(HP) or pK(a)) show that increasing the phosphine basicity by 1.0 kcal mor, increases the CpIr(CO)(PR3) basicity by 0.298 kcal mol-1 and the Fe(CO)3(PR3)2 basicity by 0.458 kcal mol-1 per PR3 ligand. For both the Ir and Fe complexes, the DELTA-H(HM) values correlate linearly with the respective nu(CO) values. The effect of the indenyl, CS, and CO ligands on the basicities (AH(HM)) of (indenyl)Ir(CO)(PPh3), CpIr(CS)(PPh3), and Cp*Ir(CO)2 are also discussed.

  DOI：

  10.1021/ja00024a026