Application of 13991-08-7, An article , which mentions 13991-08-7, molecular formula is C30H24P2. The compound – 1,2-Bis(diphenylphosphino)benzene played an important role in people’s production and life.
The ligand trihydrido(3,5-diphenylpyrazol-1-yl)borate([MpPh2]-) has been synthesized from 3,5-diphenylpyrazole and sodium borohydride in N,N-dimethylformamide. By using this ligand, three phosphane-stabilized copper(I) complexes [Cu(MpPh2)(L2)] [L2 = (PPh3)2, 1,2-bis(diphenylphosphanyl)ethane (dppe), or 1,2-bis(diphenylphosphanyl)benzene (dppbz)] were synthesized. The complexes were characterized by multinuclear NMR spectroscopy, IR spectroscopy, and X-ray crystallography. The crystal structures of these complexes show that the copper ions are in trigonal-pyramidal geometries with the apical position formed by agostic Cu-H interactions between the CuI center and one of the hydride atoms of the borate ligand. Complexes [Cu(MpPh2)(PPh3)2] and [Cu(MpPh2)(dppbz)] are mononuclear, whereas complex [Cu2(MpPh2)2(mu-dppe)2] is dinuclear with bridging dppe ligands. In the solid state, fluorescent emissions are observed in [Cu(MpPh2)(PPh3)2] and [Cu2(MpPh2)2(mu-dppe)2] but not in [Cu(MpPh2)(dppbz)], which exhibits bright cyan phosphorescence at room temperature that shifts to green when the sample is cooled to 77 K. The phosphorescence of [Cu(MpPh2)(dppbz)] is attributed to mixed interligand and metal-to-ligand charge transfer 3(MLCT + pi-pi) excited states.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate