Synthesis and Crystal Structure of 3,6-Bis(4,4,4-trifluorobutane-1,3-dione)-9-n-butylcarbazole

A novel bis(β-diketonate) derivate, 3,6-bis(4,4,4-trifluorobutane-1,3-dione)-9-n- butylcarbazole 1, was synthesized and structurally characterized by single-crystal X-ray diffrac- tion. The crystal belongs to the monoclinic system, space group P21/c with a = 10.961(6), b = 22.942(13), c = 9.408(6) , α = 90, β = 109.663(9), γ = 90o, V = 2228(2) 3, Z = 4, Dc = 1.489 g/cm3, C24H19F6NO4, Mr = 499.40, F(000) = 1024 and μ = 0.134 mm–1. The structure was refined to the final R = 0.0699 and wR = 0.1627 for 3744 independent reflections (Rint = 0.1288) and 1349 observed reflections (I > 2σ(I)). Compound 1 consists of carbazole unit and two terminal diketonate groups, in which carbazole and its two adjacent diketonate rings are almost coplanar. Moreover, compound 1 was characterized with IR, elemental analysis, 1H NMR, MS, electronic absorption, and single-photon fluorescence.

Synthesis and Crystal Structure of 3,6-Bis(4,4,4-trifluorobutane-1,3-dione)-9-n-butylcarbazole

A novel bis(β-diketonate)derivate,3,6-bis(4,4,4-trifluorobutane-l,3-dione)-9-n-butylcarbazole 1,was synthesized and structurally characterized by single-crystal X-ray diffrac-tion.The crystal belongs to the monoclinic system,space group P21/c with a=10.961(6),b=22.942(13),C=9.408(6)(A),α=90,β=109.663(9),γ=90°, V=2228(2)(A)3,Z=4,Dc=1.489g/cm3,C24H19F6NO4,Mr=499.40,F(000)=1024 and μ=0.134mm-1.The structure was refined to the final R=0.0699 and wR=0.1627 for 3744 independent reflections(Rint=0.1288)and 1349observed reflections(I＞2o(I)).Compound 1 consists of carbazole unit and two terminal diketonate groups,in which carbazole and its two adjacent diketonate rings are almost coplanar.Moreover,compound 1 was characterized with IR,elemental analysis,1H NMR,MS,electronic absorption,and single-photon fluorescence.