AN APPROXIMATE INFINITE-ORDER PERTURBATION-THEORY PRESCRIPTION FOR ISOTROPIC NMR CHEMICAL SHIELDINGS

被引:36
作者
CHESNUT, DB
机构
[1] P.M. Gross Chemical Laboratory, Duke University, Durham
关键词
D O I
10.1016/0009-2614(95)01093-O
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Data in the literature from NMR chemical shielding calculations at Hartree-Fock, MP2, MP3, and MP4 levels using large basis sets suggest that the ratio of the various perturbation order contributions may be approximately constant with a value of -0.5. Under this assumption one may sum the infinite perturbation series so that, with a knowledge of Hartree-Fock and MP2 results, the infinite order shielding may be estimated. Applying this method to cited literature calculations provides NMR shieldings that are as accurate as available MP4 and CCSD calculations and in good agreement with experiment.
引用
收藏
页码:235 / 238
页数:4
相关论文
共 33 条
[1]  
BARTLETT RJ, 1994, REV COMP CH, V5, P65, DOI 10.1002/9780470125823.ch2
[2]   COMPARISON OF HIGH-ORDER MANY-BODY PERTURBATION-THEORY AND CONFIGURATION INTERACTION FOR H2O [J].
BARTLETT, RJ ;
SHAVITT, I .
CHEMICAL PHYSICS LETTERS, 1977, 50 (02) :190-198
[3]  
BISHOP DM, 1993, MOL PHYS, V808, P209
[4]   NMR SHIELDING CALCULATIONS BEYOND COUPLED HARTREE-FOCK - 2ND-ORDER CORRELATION-EFFECTS IN LOCALIZED-ORBITAL LOCAL-ORIGIN CALCULATIONS OF MOLECULES CONTAINING PHOSPHORUS [J].
BOUMAN, TD ;
HANSEN, AE .
CHEMICAL PHYSICS LETTERS, 1990, 175 (04) :292-299
[5]   ACCURATE COMPUTATIONS OF SE-77 NMR CHEMICAL-SHIFTS WITH THE GIAO-CCSD METHOD [J].
BUHL, M ;
GAUSS, J ;
STANTON, JF .
CHEMICAL PHYSICS LETTERS, 1995, 241 (03) :248-252
[6]  
BUHL M, 1995, J PHYS CHEM-US, V99, P400
[7]   CHEMICAL-SHIFT BOND DERIVATIVES FOR MOLECULES CONTAINING 1ST-ROW ATOMS [J].
CHESNUT, DB ;
WRIGHT, DW .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1991, 12 (05) :546-559
[8]   NMR CHEMICAL-SHIFT BOND LENGTH DERIVATIVES OF THE 1ST-ROW AND 2ND-ROW HYDRIDES [J].
CHESNUT, DB .
CHEMICAL PHYSICS, 1986, 110 (2-3) :415-420
[9]   CALCULATIONS OF MAGNETIC-PROPERTIES .2. ELECTRON-CORRELATED NUCLEAR SHIELDING CONSTANTS FOR 9 SMALL MOLECULES [J].
CYBULSKI, SM ;
BISHOP, DM .
JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (10) :8057-8064
[10]  
de Dios A. C., 1994, ANN REP NUCL MAGN RE, V29, P1