SMALL ERRORS IN C-H BOND LENGTHS MAY CAUSE LARGE ERRORS IN ROTATIONAL CORRELATION TIMES DETERMINED FROM C-13 SPIN-LATTICE RELAXATION MEASUREMENTS

被引：76

作者：

DILL, K ^{[1
]}

ALLERHAND, A ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1979年 / 101卷 / 15期

关键词：

D O I：

10.1021/ja00509a057

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Measurements of spin-lattice relaxation times (T1) of resonances of proton-bearing carbons in proton-decoupled13C NMR spectra have been used extensively to study rotational motions of large molecules in solution.1.2Becausel3C-1H dipole-dipole interactions with directly bonded hydrogens provide an overwhelmingly dominant relaxation mechanism2(even at high magnetic field strengths3), it is necessary to know the values of the pertinent carbon-hydrogen bond lengths (fch) in order to extract values of rotational correlation times (TR) from the measured T1values. © 1979, American Chemical Society. All rights reserved.

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页码：4376 / 4378

页数：3

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