Brown Steven P
Department of Physics, University of Warwick, Coventry CV4 7AL, UK.
Macromol Rapid Commun. 2009 May 19;30(9-10):688-716. doi: 10.1002/marc.200800816. Epub 2009 Apr 21.
This article reviews recent applications of novel (1) H, (2) H, (13) C, (15) N and (17) O solid-state MAS NMR methods that provide new insight into the structural and dynamic processes that determine the bulk properties of polymeric and supramolecular materials. The review highlights methods that exploit the sensitivity to structure and dynamics of the NMR chemical shift and quadrupolar coupling as well as the through-space dipolar coupling and through-bond J coupling. In particular, it is shown that solid-state NMR exhibits marked sensitivity to key intra- and intermolecular hydrogen-bonding and π-π interactions, allowing, for example, the very accurate determination of internuclear distances as well as the probing of dynamics over a very wide range of timescales.
本文综述了新型(1)H、(2)H、(13)C、(15)N和(17)O固态核磁共振方法的近期应用,这些方法为决定聚合物和超分子材料整体性质的结构和动态过程提供了新的见解。该综述重点介绍了利用核磁共振化学位移和四极耦合以及空间偶极耦合和键间J耦合对结构和动力学的敏感性的方法。特别是,研究表明固态核磁共振对关键的分子内和分子间氢键以及π-π相互作用表现出显著的敏感性,例如,能够非常精确地测定核间距,并在非常广泛的时间尺度上探测动力学。