Stereochemistry of oxygenated 10-membered rings: X-ray crystal structure, theoretical calculations and 1H and 13C NMR studies of benzo-10-crown-3 ether in solution and in the solid phase
作者:G.W. Buchanan、M. Gerzain、C. Bensimon、R. Ellen、V.M. Reynolds
DOI:10.1016/s0022-2860(96)09439-2
日期:1997.2
Abstract The title molecule crystallizes in space group P 21 c , with a = 7.2705(20), b = 10.825(3), c = 12.790(5) A , β = 93.51(3) δ and Z = 4. The solid phase 13 C NMR spectrum is discussed in relation to that obtained in solution. A dideuterio derivative has been synthesized to aid in the spectral assignments. Conformational preferences of the 10-membered ring in the solid state are compared with
摘要 标题分子在空间群 P 21 c 中结晶,a = 7.2705(20), b = 10.825(3), c = 12.790(5) A , β = 93.51(3) δ 和 Z = 4。 固相13 C NMR 光谱与在溶液中获得的光谱有关。已经合成了双氘衍生物以帮助光谱分配。将固态 10 元环的构象偏好与使用 MM2 和采用 AM1 方法的量子力学方法的分子力学计算结果进行比较。