| Studies on Heteromacrocyclic Polyether（X） Synthesis and Structural Characterization of 2，3，11，12－Dibenzo－1，4，10，13－tetraselena－7，16－dioxacyclooctadeca－2，11－diene |
| |
| 作者姓名： | Huang You-Qing Hu Sheng-Zhi |
| |
| 作者单位： | Huang You-Qing; Hu Sheng-Zhi(Department of Chemistry，Xiamen University，Xiamen 361005)Li Wei-Ping; Liu Xiu-Fang; Xu Han-Sheng (Department of Chemistry，Wuhan University，Wuhan 430072 )Received 23 September 1994 ; accepted 22 March 1995 |
| |
| 摘 要： | ＳｔｕｄｉｅｓｏｎＨｅｔｅｒｏｍａｃｒｏｃｙｃｌｉｃＰｏｌｙｅｔｈｅｒ（Ｘ）ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒａｌＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆ２，３，１１，１２－Ｄｉｂｅｎｚｏ－１，４，１０，１３－ｔｅｔｒａｓｅｌｅｎａ－７，１６－ｄｉ...
|
Studies on Heteromacrocyclic Polyether (X) Synthesis and Structural Characterization of 2, 3, 11, 12-Dibenzo-1, 4, 10, 13-tetraselena-7, 16-dioxacyclooctadeca-2, 11-diene |
| |
| Huang You-Qing, Hu Sheng-Zhi.Studies on Heteromacrocyclic Polyether (X) Synthesis and Structural Characterization of 2, 3, 11, 12-Dibenzo-1, 4, 10, 13-tetraselena-7, 16-dioxacyclooctadeca-2, 11-diene[J].Chinese Journal of Structural Chemistry,1995(4). |
| |
| Authors: | Huang You-Qing Hu Sheng-Zhi |
| |
| Abstract: | Dibenzo-1 , 4 , 10 , 13-tetraselena-7 , 16-dioxacyclo-octadeca-2 , 11-diene was synthesized by the condensation of poly (o-diselenobenzene) with bis (2-chloroethyl) ether in the presence of potassium borohydride. The molecular structure was examined by IR, MS and ￣1H NMR spectra, and confirmed by an X-ray diffraction study. The molecule in the crystal has a centrosymmetry and shows a chair conformation. The dihedral angle between the plane containing the four Se atoms and the benzene ring is 104. 1 (2)°. All geometrical parameters of the molecule are unexceptional. Crystal data : C_20H_24O_2Se_4, M_r= 612. 26, monoclinic, space group P2_1/c, a=8. 866(2) , b=5. 349(1). c=22. 315(3) A, β=96. 04(2)°, V=1052. 3 A￣3, Z=2,D_c=1.932 g/cm￣-3 , μ(MoKα) = 69. 15 cm￣-1, F(000) = 592, T= 297K, R= 0. 038for 1270 observed reflections and 154 refined parameters. |
| |
| Keywords: | crown ether selenacrown ether synthesis crystal structure |
| 本文献已被 CNKI 等数据库收录！ |
|
