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Synthesis and Crystal Structure of an Ion-pair Compound: [H_2(teta)]^(2+)·[Ni(CN)_4]^(2-)·2H_2O (teta = Meso-5,7,7,12,14,14-hexamethyl- 1,4,8,11-tetraazacyclotetradecane)
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作者 丁建刚 耿飞 +1 位作者 李宝龙 张勇 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第1期25-28,共4页
The ion-pair compound [H2(teta)]^2+·[Ni(CN)4]^2-·2H2O (C20H42N8NiO2, teta = meso- 5,7,7,12,14,14-hexamethyl- 1,4,8,11-tetraazacyclotetradecane) was synthesized and characterized by single-crystal X-ra... The ion-pair compound [H2(teta)]^2+·[Ni(CN)4]^2-·2H2O (C20H42N8NiO2, teta = meso- 5,7,7,12,14,14-hexamethyl- 1,4,8,11-tetraazacyclotetradecane) was synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P211n with a = 10.0784(10), b = 9.5411(7), c = 14.1010(14)А, β= 106.752(2)°, V= 1298.4(2)A^3, Mr = 485.33, Z= 2, De= 1.241 g/cm^3,μ(MoKα) = 0.778 mm^-1 and F(000) = 524. The structure was refined to R = 0.0391 and wR = 0.0870 for 2614 observed reflections with I 〉 2σ(I). The title compound contains one [Ni(CN)4]^2- anion, one protonated macrocyclic tetraamine cation [H2(teta)]^2+ and two water molecules. There are multiform hydrogen bonds in the compound to link the different components and stabilize the crystal structure. 展开更多
关键词 crystal structure tetraazacyclotetradecane hydrogen bond ion-pair compound
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