Hydrothermal Synthesis and Crystal Structure of A New Complex [Zn(TTBT)_2(Hndc)_2]·3H_2O

A new Zn(Ⅱ) complex[Zn(TTBT)2(Hndc)2]·3H2O was synthesized by hydrothermal reaction of 10,11,12,13-Tetrahydro-4,5,9,14-tetraaza-benzo[b]triphenylene(TTBT),naphthalene-1,4-dicarboxylic acid(H2ndc) and Zn(NO3)2·6H2O.The structure was characterized by elemental analysis and single crystal X-ray diffraction.The title compound crystallizes in monoclinic space group C 2/c,with a=28.186(6),b=10.174(2),c=19.050(4),α=90°,β=113.26(3)°,γ=90°,V=5 018.8(17) 3,Z=4,dc=2.224 g/cm3,μ=7.319 mm-1,F(000)=3 224,R1=0.068 3,wR2=0.168 4.