• DOI:10.1021/IC061448P
• Corpus ID: 22047404

Luminescent hepta- and tetradecanuclear complexes of 5,5'-diethynyl-2,2'-bipyridine capped with triangular trinuclear Cu3/Ag3 cluster units.

@article{Wei2006LuminescentHA,
  title={Luminescent hepta- and tetradecanuclear complexes of 5,5'-diethynyl-2,2'-bipyridine capped with triangular trinuclear Cu3/Ag3 cluster units.},
  author={Qiao-Hua Wei and Gang-Qiang Yin and Li-Yi Zhang and Zhong-Ning Chen},
  journal={Inorganic chemistry},
  year={2006},
  volume={45 25},
  pages={
          10371-7
        }
}

• Qiao-Hua Wei, Gang-Qiang Yin, +1 author Zhong-Ning Chen
• Published 11 November 2006
• Chemistry
• Inorganic chemistry

Heteroheptanuclear ReM6 (M = Cu 2, Ag 3) complexes of 5,5-diethynyl-2,2'-bipyridine were prepared by the reaction of [M2(mu-dppm)2(MeCN)2]2+ (dppm = bis(diphenylphosphino)methane) with the precursor compound Re(Me3SiC[triple bond]CbpyC[triple bond]CSiMe3)(CO)3Cl in the presence of potassium fluoride by fluoride-catalyzed desilylation. When [Cu2(mu-dppm)2(MeCN)2]2+ reacts directly with Me3SiC[triple bond]CbpyC[triple bond]CSiMe3, a binuclear CuI complex [Cu2(mu-dppm)2(SiMe3C[triple bond]CbpyC[triple bond]CSiMe3)2]2+ (4) was isolated. Further addition of [Cu2(mu-dppm)2(MeCN)2]2+ into a THF-MeOH (3:1, v/v) solution of 4 in the presence of potassium fluoride induced isolation of a tetradecanuclear CuI14 complex [Cu14(mu-dppm)14(C[triple bond]CbpyC[triple bond]C)2]10+, which is composed of a binuclear Cu2(mu-dppm)2 and four triangular trinuclear Cu3 units. Both heteroheptanuclear ReIMI6 and tetradecanuclear CuI14 complexes display luminescence in both solid states and dichloromethane solutions at room temperature with emissive lifetimes in the range of microseconds. The dual emissive feature for the ReM6 and CuI14 complexes is ascribed tentatively to originate from both MLCT [d(Re/Cu) -->pi* (bpy)] and LMCT (acetylide --> M3) transitions. .