COMPOSITION FOR MAKING TEMPORARY CROWNS AND BRIDGES
申请人:Kerr Corporation
公开号:EP1056431B1
公开(公告)日:2002-10-16
Carbon-13 NMR studies of solid bisphenol-A alkanoates
作者:Daniele Casarini、Robin K. Harris、Alan M. Kenwright
DOI:10.1016/0022-2860(95)08902-8
日期:1995.8
cross-polarisation. These reveal effects arising from crystallographic non-equivalence, molecular motion (phenylene ring-flipping) and non-crystalline forms. The data are complemented by DSC and solution-state NMR measurements. Apparently inhomogeneous ring-flipping for some of the compounds is discussed.
摘要 报道了六种双酚 A 链烷酸酯的魔角旋转 13 C 光谱,通常具有交叉极化。这些揭示了由晶体学非等价性、分子运动(亚苯基环翻转)和非结晶形式引起的影响。数据由 DSC 和溶液态 NMR 测量补充。讨论了一些化合物的明显不均匀的环翻转。