A COMPARISON OF THE IGLO AND LORG METHODS FOR THE CALCULATION OF NUCLEAR MAGNETIC SHIELDINGS

被引:47
作者
FACELLI, JC
GRANT, DM
BOUMAN, TD
HANSEN, AE
机构
[1] SO ILLINOIS UNIV,DEPT CHEM,EDWARDSVILLE,IL 62026
[2] HC ORSTED INST,DEPT PHYS CHEM,DK-2100 COPENHAGEN O,DENMARK
关键词
D O I
10.1002/jcc.540110104
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The individual gauge for localized orbitals (IGLO) and localized orbital/local origin (LORG) methods for the calculation of chemical shieldings are compared from their theoretical and computational viewpoints. A detailed analysis of the fluorine α‐substituent effect in a series of fluoromethanes is given in terms of the IGLO and LORG bond contributions. The performance of both methods is discussed for molecular systems of fairly different sizes. Copyright © 1990 John Wiley & Sons, Inc.
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页码:32 / 44
页数:13
相关论文
共 33 条
[1]  
BINKLEY JS, 1982, GAUSSIAN CARNEGIE ME, V82
[2]   ITERATIVE LORG CALCULATIONS OF NUCLEAR MAGNETIC SHIELDINGS - C-13 SHIELDING TENSORS IN 2-NORBORNENONE [J].
BOUMAN, TD ;
HANSEN, AE .
CHEMICAL PHYSICS LETTERS, 1988, 149 (5-6) :510-515
[3]  
BOUMAN TD, 1988, RPAC 8 2 PROGRAM QCP
[4]   SOME SIMPLE BASIS-SETS FOR ACCURATE C-13 CHEMICAL-SHIFT CALCULATIONS [J].
CHESNUT, DB ;
FOLEY, CK .
CHEMICAL PHYSICS LETTERS, 1985, 118 (03) :316-321
[5]  
DITCHFIELD R, 1972, MTP INT REV SCI PHYS
[6]  
DUNNING TH, 1977, METHODS ELECTRONIC S
[7]   ANALYSIS OF THE IGLO BOND CONTRIBUTIONS TO THE C-13 SHIELDING TENSORS IN THE LOCAL BOND FRAME [J].
FACELLI, JC ;
GRANT, DM ;
MICHL, J .
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 1987, 31 (01) :45-55
[8]   MAGNETIC-PROPERTIES IN TERMS OF LOCALIZED QUANTITIES .11. FLUORINE-COMPOUNDS OF 1ST-ROW ELEMENTS [J].
FLEISCHER, U ;
SCHINDLER, M .
CHEMICAL PHYSICS, 1988, 120 (01) :103-121
[9]  
FRISCH MJ, 1984, GAUSSIAN CARNEGIE ME, V86
[10]   SINGLE-CRYSTAL STUDY OF F-19 SHIELDING TENSORS OF A TRIFLUOROMETHYL GROUP [J].
GRIFFIN, RG ;
BULLITT, JG ;
ELLETT, JD ;
WAUGH, JS ;
MEHRING, M .
JOURNAL OF CHEMICAL PHYSICS, 1972, 57 (05) :2147-&