P-31-C-13 SHIFT CORRELATED 2D NMR-SPECTRA OF THE AA'X SPIN SYSTEM - DETERMINATION OF P-P COUPLING-CONSTANTS AND THEIR RELATIVE SIGNS IN SYMMETRICAL DIPHOSPHONATES

被引：25

作者：

BECKMANN, H ^{[1
]}

GROSSMANN, G ^{[1
]}

OHMS, G ^{[1
]}

机构：

[1] DRESDEN UNIV TECHNOL,INST ANALYT CHEM,MOMMSENSTR 13,O-8027 DRESDEN,GERMANY

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1992年 / 30卷 / 09期

关键词：

AA'X SPIN SYSTEM; P-C SHIFT CORRELATION; STRONG COUPLING EFFECTS IN 2D NMR; P-P AND P-C COUPLING CONSTANTS; RELATIVE SIGNS; DIPHOSPHONATES;

D O I：

10.1002/mrc.1260300912

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The indirect determination of P-P coupling constants and their relative signs in some symmetrical diphosphonates by P-31-C-13 2D NMR is introduced. Advantages and disadvantages of this method and others for the determination of the coupling constants of chemically equivalent nuclei are discussed. Strong coupling effects are analysed by means of simulated 2D spectra and the product operator formalism.

引用

页码：860 / 864

页数：5

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