(η5-cyclopentadienyl)(o-xylenediyldithioethylene-1,2-dithiolate-S-CH3)(trifluoroacetate)cobalt(III) | 1202781-87-0

• 英文名称: (η5-cyclopentadienyl)(o-xylenediyldithioethylene-1,2-dithiolate-S-CH3)(trifluoroacetate)cobalt(III)
• CAS: 1202781-87-0
• 化学式: C₁₈H₁₆CoF₃O₂S₄
• 分子量: 508.576
• InChiKey: CGWQNJMLIPFDDW-RVVQQURLSA-L

反应信息

• 作为产物：
  描述：

  (η5-cyclopentadienyl)(o-xylenediyldithioethylene-1,2-dithiolate)(CH2)cobalt(III) 、 三氟乙酸 以 二氯甲烷 为溶剂， 以86%的产率得到(η5-cyclopentadienyl)(o-xylenediyldithioethylene-1,2-dithiolate-S-CH3)(trifluoroacetate)cobalt(III)
  参考文献：
  名称：

  CpCo(dithiolene) complexes of highly flexible oxddt ligand with two different Z-shaped and U-shaped structures

  摘要：

  [CpCo(oxddt)] complex (2, oxddt = o-xylenediyldithioethylene-1,2-dithiolate, Cp = eta(5)-cyclopentadienyl) was obtained from o-xylenediyldithioethylene-1,3-dithiol-2-one (O=C(oxddt)) (1). 2 further reacted with diazoalkanes (N2CHR) to form some alkylidene-bridged adducts [CpCo(CHR)(oxddt)] (R = H (3a), SiMe3 (3b)). Adduct 3a further reacted with protic acids (HX) to give some S-methylated adducts [CpCo(X)(oxddt)(S-Me)] (X = Cl (4a), OCOCF3 (4c)), followed by the Co-C bond cleavage in the three-membered cobaltathiirane ring. Two different Z-shaped and U-shaped molecular structures were observed by X-ray diffraction studies. In the former structure (Z), the dithiolene and o-xylylene planes are located at almost parallel position each other, and in the latter structure (U), both planes are not parallel but the o-xylylene moiety is located closer to the dithiolene plane than the Z-shaped one. The Z-shaped structure involves 1 and 2. The U-shaped structure involves 3a, 3b, 4a and 4c. Complex 1 showed a one-dimensional chain through intermolecular pi-pi interaction in the crystal. Complex 2 had a dimeric interaction between dithioethylenedithiolate moieties (S2C2S2) in the oxddt. The SiMe3 group in 3b was placed at an exo-position with respect to the cobaltadithiolene ring due to a steric hindrance from the U-shaped oxddt ligand. In 4a, the X and Me groups are located at the opposite side of the dithiolene plane (anti-form) but in 4c, both groups are presented at the same side of the dithiolene plane (syn-form). The NMR analysis of 4a in solution indicated existence of both anti-and syn-isomers (7:1). (C) 2009 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2009.07.026