Citation:
Wen Xiang HU, Shu Sen LI, Cheng Ye YUAN. EMPIRICAL RULES FOR 31p-NMR OF ORGANOPHOSPHORUS COMPOUNDS[J]. Chinese Chemical Letters,
;1992, 3(4): 275-278.
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The substituent effects on 31P-NMR chemical shifts, are determined by five empirical rules. The proposed rules are based on that the shielding (upfield shift) of resonance nucleus is governed by the spherical symmetry of the electron cloud
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