Syntheses and Characterizations of Luminescent Complexes [(BINAP)Pt(C≡CC_6H_4R-p)_2] (R = H, 1; CH_3,2) (BINAP = 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl)

摘要

[(BINAP)Pt(C≡CC_6H_4R-p)_2] (R = H, 1; CH_3, 2) (BINAP = 2,2'-bis(diphenylphos-phino)-1,1'-binaphthyl) were synthesized and characterized by X-ray crystallography. Complex 1 crystallizes in triclinic, space group P1 with a = 11.699(3), b = 12.512(3), c = 15.611(4) A, α = 93.277(3), β= 97.626(2), γ = 97.375(14)°, V = 2239.9(9) A~3 M_r = 1014.92, Z = 2, D_c= 1.505 g/cm~3, F(000) =1010, μ(MoKα) = 3.244 mm~(-1), the final R = 0.0338 and wR = 0.0905 for 7738 observed reflections (I > 2σ(I)). Complex 2 crystallizes in monoclinic, space group P2_1 with a = 18.03690 (10), b = 13.06060(10), c = 21.6913(3) A, β= 96.5430(10)°, V= 5076.60(9) A~3, M_r = 1132.94, Z = 4, D_c = 1.482 g/cm~3, F(000) = 2272, μ(MoKα) = 2.973 mm~(-1), the final R = 0.0481 and wR = 0.0893 for 8916 observed reflections (I > 2σ(I)). Both complexes emit intensively photoluminescence in both solid state and fluid solution due to MLCT (Pt→~-C≡CC_6H_4R-p) emissive state.