Journal of Cluster Science

, Volume 13, Issue 1, pp 119–136

Syntheses, Structures, Bonding, and Optical Properties of Trinuclear Cluster Iodides: M33-I)2(μ-dppm)3·I (M=Cu, Ag), dppm=bis(diphenylphosphino)methane)

Authors

  • Wen-Bo Zhou
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Jun-Ling Song
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Hui-Yi Zeng
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Rong Cao
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Guo-Cong Guo
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Jin-Shun Huang
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences
  • Jun Li
    • Department of ChemistryThe Ohio State University
Article

DOI: 10.1023/A:1015195130685

Cite this article as:
Zhou, W., Dong, Z., Song, J. et al. Journal of Cluster Science (2002) 13: 119. doi:10.1023/A:1015195130685

Abstract

The title compounds were obtained from the reactions of copper or silver monohalides with the bidentate bis(diphenylphosphino)methane (dppm) ligand at room temperature in a mixed solvent. Single-crystal X-ray diffraction analyses indicate that both compounds crystallize in a monoclinic system but in different space groups. The structures are characterized by a trinuclear [M3I2(dppm)3]+ cation with a trigonal-bipyramid [M3(μ3-I)2] core. In agreement with the geometric characteristics of the M3 triangles, 31P NMR spectra exhibit a single peak for the [Cu3] cluster but a double-peak for the [Ag3] cluster. Preliminary optical studies by UV/Vis and emission techniques show major absorption shoulders at ∼286 nm for Cu3I2(dppm)3·I and ∼254 nm for Ag3I2(dppm)3·I, but no luminescence in the non-degassed MeCN solution at 298 K. The structures, bonding, electronic excitations and emissions are discussed based on relativistic density functional theory calculations.

trinuclear clustersCuAgdppmhalidesoptical propertieselectronic structures

Copyright information

© Plenum Publishing Corporation 2002