Polyphosphorus ligands—V. The synthesis, phosphorus-31 NMR spectra and conformations of the polykis(diphenylphosphino) benzens (Ph2P)nC6H6−n (n = 1–4)
Polyphosphorus ligands—V. The synthesis, phosphorus-31 NMR spectra and conformations of the polykis(diphenylphosphino) benzens (Ph2P)nC6H6−n (n = 1–4)
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多磷配体—V. 聚（二苯基膦）苯 (Ph2P)nC6H6−n (n = 1–4) 的合成、磷 31 NMR 谱和构象
DOI：
10.1016/s0277-5387(00)80699-3
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
W. Mcfarlane
中科院分区：
文献类型：
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作者：
H. Mcfarlane;W. Mcfarlane
(Ph_2P)_nC_6H_6·−_n(n=1~4)的所有异构体都是由相应的C_6H_6−_nF_n与Ph_2PNa在液氨中反应得到的。在许多情况下，它们的~(31)P核磁共振谱具有结构诊断性，其中δ(31P)具有Ph_2P单元立体化学环境的特征，偶联3J(PP)与构象有关，位于35-154赫兹范围内，而4J(PP)和5J(PP)则小得多。
All isomers of (Ph2P)nC6H6−n(n= 1–4) have been prepared by the reaction between the corresponding isomer of C6H6−nFnand Ph2PNa in liquid ammonia. In many cases their phosphorus-31 NMR spectra are structurally diagnostic, with δ(31P) having values characteristic of the stereochemical environment of the Ph2P unit, and the couplings3J(PP) being conformationally dependent and lying in the range 35–154 Hz, while4J(PP) and5J(PP) are much smaller.