Crystal Structure of a Vinylidene Iron Complex, <i>Cis</i>-[(<i>η</i>-Cp)₂Fe₂(<i>μ</i>-CO)(CO)₂-{<i>μ</i>-C=C(COOCH₃)₂}], Formed by 1,2-Acyl Shift of Dimethylacetylenedicarboxylate

• YAMAZAKI Shinsaku

  Department of Medical Hygiene, Kochi Gakuen College

• YONEMURA Toshiaki

  Department of Applied Chemistry, Faculty of Material Sciences, Kochi University

Abstract

The compound crystallized in a monoclinic system, and was characterized thus: P2₁/n; a = 8.821(5)Å, b = 14.971(5)Å, c = 14.473(5)Å, β = 101.306(5)°, Z = 4, V = 1874.20(24)ų. The crystal structure was solved by direct methods and refined by full-matrix least-squares on F² to final values of R₁ = 0.0528 and wR₂ = 0.1574. An acyl-group of the dimethylacetylene dicarboxylate ligand underwent a 1,2-acyl shift, while forming a vinylidene dianion, which newly bridged to the cis-dicyclopentadienyldiiron-group by the (μ,η¹:η¹)-bond fashion with atomic distances of Fe1-Fe2 2.5028(15)Å, C1-C2 1.342(4)Å, and Fe1-C1 1.917(3)Å, Fe2-C1 1.901(3)Å, respectively.

Journal

• X-ray Structure Analysis Online

  X-ray Structure Analysis Online 30 (0), 15-16, 2014

  The Japan Society for Analytical Chemistry

Keywords

• Materials Chemistry
• Analytical Chemistry

Details

• CRID: 1390001205299677184
• NII Article ID: 130004953651
• DOI: 10.2116/xraystruct.30.15
• ISSN: 18833578
• Web Site: https://www.jstage.jst.go.jp/article/xraystruct/30/0/30_15/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed