High‐resolution 13C nuclear magnetic resonance spectra of some solid biphenyl derivatives
High‐resolution 13C nuclear magnetic resonance spectra of some solid biphenyl derivatives
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一些固体联苯衍生物的高分辨率13C核磁共振谱
DOI：
10.1002/mrc.1260240116
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Stephen Purser
中科院分区：
文献类型：
--
作者：
A. M. Chippendale;R. Aujla;R. Harris;K. J. Packer;Stephen Purser
得到了联苯及其一系列取代衍生物的固相13C核磁共振谱。有些种类在固相和固相的光谱基本相似，而另一些则表现出明显的差异。在一些情况下，这种差异被证明是由于分子在固体中被锁定成特定的构象。对于某些化合物，C‐1和C‐1′的化学位移不同；固相和固相中的碳原子反映了两相环面夹角的差异。
13C NMR spectra of the solid phase have been obtained for biphenyl and a series of its substituted derivatives. Some species give essentially similar spectra in the solid and solution phases, whereas others show clear differences. In several cases the differences are shown to be due to the locking of the molecules into a particular conformation in the solid. For some compounds different chemical shifts for the C‐1 and C‐1′; carbon atoms in the solid and solution phases are believed to reflect differences in the angle between the ring planes in the two phases.