基于三聚硫氰酸配体的六核镍配合物的合成,晶体结构和荧光性能分析(英文)

Synthesis,Characterization and Photoluminescent Property of a Hexanuclear Nickel(Ⅱ) Complex with Trithiocyanuric Acid

用缓慢挥发法合成了一个六核Ni(Ⅱ)的配位聚合物[Ni6(H2O)6(HTMT)6]·3(C2H5)3N·7H2O(1)(H3TMT=三聚硫氰酸),并用红外、元素分析及单晶衍射进行表征。该配合物属于三方晶系,R3c空间群,晶胞参数为a=b=1.869 7(3)nm,c=3.982 5(8)nm,γ=120°。晶胞体积V=12.057(4)nm3,Dc=1.596 gcm-3,Z=6,μ=1.91 mm-1,F(000)=6 095,R=0.047,wR=0.151。X单晶衍射表明,6个Ni(Ⅱ)与6个HTMT2-和6个水分子形成一个六核的构筑单元,这个六核构筑单元又通过氢键作用形成三维结构。同时在室温条件下测定了该配合物的荧光性能。

The title complex, [Ni6（H2O）6（HTMT）6]-3 （C2H5）3N ·7H2O （1） （H3TMT =trithiocyanuric acid）, was synthesized by slow evaperation, which was characterized by IR, elemental analysis, and single crystal X-ray diffraction. This complex crystallizes in trigonal, space group R3c, with a=b=1.8697（3） nm, c=3.982 5（8） nm, γ= 120°, V=12.057 （4） nm3, C36H77N21Ni6013S18, Mr=1941.36, Do=1.596 gcm-3, Z=6, μ=1.91 mm-l, F（000）=6 095, the final R =0.047, wR =0.151 for [Ni6 （H20）6 （HTMT）6] · 3 （C2H5）3N · 7H2O （1） observed reflections （I 〉2σ （I））. X-ray diffraction analysis reveals that the six nickel（R） atoms are bridged by six HTMT2- and six water molecules into a hexanuclear building unit, the neutral hexanuclear building units are further connected into a three-dimensional framework through the O-H... Oand O-H... N hydrogen bonding interactions. The photoluminescent property of complex （I） was also studied at room temperature.