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Synthesis and Crystal Structure of 1,4,7,10-Tetrakis-(2-(2,3-difluorophenyl)-ethyl)-1,4,7,10-tetraazacyclododecane

Synthesis and Crystal Structure of 1,4,7,10-Tetrakis-(2-(2,3-difluorophenyl)-ethyl)-1,4,7,10-tetraazacyclododecane

作     者:孙小强 崔源 张秀芹 陈强 席海涛 

作者机构:Key Laboratory of Fine Petrochemical EngineeringJiangsu Polytechnic University High Technology Research Institute of Nanjing University 

出 版 物:《Chinese Journal of Structural Chemistry》 (结构化学(英文))

年 卷 期:2011年第30卷第1期

页      面:7-11页

核心收录:

学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基  金:supported by the National Natural Science Foundation of China (20872051) 

主  题:synthesis crystal structure cyclen tetra-N-alkylation 

摘      要:The new compound 1,4,7,10-tetrakis-(2-(2,3-difluorophenyl) ethyl) -1,4,7,10-tetra-zacyclododecane 2 has been synthesized and structurally characterized by single-crystal X-ray diffraction. The molecule turned into diamond crystals grown from CH3CN by slow diffusion at room temperature. It crystallizes in the triclinic system,space group P1^- with a = 9.543(2) ,b = 10.507(3) ,c = 10.734(3) A,α = 60.979(3) ,β = 81.870(4) ,γ = 84.279(4) o,V = 931.1(4) 3,Z = 1,Dc = 1.307 g/cm^3,C40H44F8N4,Mr = 732.79,F(000) = 384,μ = 0.105 mm^-1,T = 296(2) K,MoKa radiation(λ = 0.71073) ,R = 0.0494 and wR = 0.0989 for 1589 observed reflections with I 〉 2σ(I) . Hydrogen bonds and C-H···π stacking interactions in 2 contribute to a supramolecular structure. Moreover,compound 2 has been determined by ^1H NMR,^13C NMR,MS,IR spectra and elemental analysis.

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