C_(60)和C_(70)的分子及晶体结构  

Syntheses, Magnetic Properties and Crystal Structure of Supramolecular Copper (II) Complexes with α, β - Unsaturated Carboxylates

作　　者：张聿高[1] 黄本玉[1] 

机构地区：[1]山东昌潍师范专科学校化学系,261043

出　　处：《化学教育》1999年第1期6-9,27,共5页Chinese Journal of Chemical Education

摘　　要：本文较详细地介绍了Ｃ６０和Ｃ７０的各种光谱、波谱、Ｘ射线衍射结果及Ｃ６０、Ｃ７０单晶体的培养方法，说明了Ｃ６０、Ｃ７０的分子构型及晶体结构和相变特点。Two supramolecular complexes Cu2 A4(H2O)2[A = CH2 - CH - COO- and GH2 = C (CH3)-COO-] have been synthesized, and characterized by elemental analyses, IR, ESR and magnetic studies. The single crystal X - ray diffraction shows that Cu2(CH2= CH-COO)4(H2O)2 crystallizes in the monoclinic space group C2/ c , with a = 1 . 7009 ( 9 ) nm , b = 0 . 8060 ( 5 ) nm ,c = 1.4429(4)nm, β= 109.31(5)°, Z = 4 and R = 0.0501. Two copper( II ) atoms are bridged byfour acrylate groups. Each copper( II ) atom is coordinated with H2O molecule in axial position, forming a distorted square pyramidal configuration. The symmetric center is between the two copper( II ) atoms. The Cu-Cu bond distance is 0.26096(14)nm. The Cu-Cu distance and magnetic studies suggest that there exists an antiferromagnetic interaction between the two copper( II ) atoms. Two adjacent molecular units are linked by two hydrogen bonds (O...O = 0.2833nm), forming a one - dimensional chain supramolecular complex along c axis.

关 键 词：C60 C70 分子构型 晶体结构 碳60 碳70 

分 类 号：O613.71[理学—无机化学] O635.1[理学—化学]