chlorodicarbonyl(1,1'-bis(diphenylphosphino)ferrocene-P,P)thienylcarbynyltungsten(II) | 154795-01-4

• 英文名称: chlorodicarbonyl(1,1'-bis(diphenylphosphino)ferrocene-P,P)thienylcarbynyltungsten(II)
• CAS: 154795-01-4
• 化学式: C₄₁H₃₁ClFeO₂P₂SW
• 分子量: 924.859
• InChiKey: QXIYLKCSKSFZGD-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  1,1'-双(二苯基膦)二茂铁 、 草酰氯 、 在 pyridine 作用下， 以 二氯甲烷 为溶剂， 以52%的产率得到chlorodicarbonyl(1,1'-bis(diphenylphosphino)ferrocene-P,P)thienylcarbynyltungsten(II)
  参考文献：
  名称：

  Tungsten Carbyne Complexes Containing 1,1'-Bis(diphenylphosphino)ferrocene (dppf). Reverse Relationship between NMR Chemical Shifts of the Carbyne 13C and the 183W Nuclei and Molecular Structure of WCl(CO)2(dppf)(CPh)

  摘要：

  The Fischer-type carbyne complexes containing 1,1'-bis(diphenylphosphino)ferrocene (dppf), WX(CO)2(dppf) (CR) [X = Cl, R = Me, Ph, thienyl, furyl, and ferrocenyl; X = Br; R = ferrocenyl], were synthesized. In these complexes, an increase in the W-183 and a decrease in the carbyne C-13 chemical shifts with increasing pi-donating ability of the carbyne substituents were observed. The ferrocenyl-substituted derivate showed the more enhanced redox potential compared with the corresponding carbonyl analog. The structure of WCl(CO)2(dppf)(CPh) has been determined by the single-crystal X-ray diffraction method. The crystal is monoclinic with space group P2(1)/n, and the cell constants are a = 15.565(3) angstrom, b = 21.493(4) angstrom, c = 11.167(2) angstrom, beta = 92.45(1)degrees, and Z = 4. The structure has been refined to a final R value of 0.052. The coordination geometry around the W atom is octahedral with a cis chelation of dppf. The W-C bond distance [1.82(1) angstrom] is in the normal range. The Cp rings of the dppf ligand in the complex take a staggered conformation, but all the C atoms in each ring are almost coplanar.

  DOI：

  10.1021/om00016a053