Relativistic DFT calculations of polyoxotungstate 183W NMR spectra:: Insight into their solution structure

被引:35
作者
Bagno, A
Bonchio, M
Sartorel, A
Scorrano, G
机构
[1] Univ Padua, Dipartimento Chim Organ, I-35131 Padua, Italy
[2] CNR, Ist Tecnol Membrane, Sez Padova, I-35131 Padua, Italy
关键词
density functional calculations; NMR spectroscopy; nuclear shielding; polyoxometalates; tungsten;
D O I
10.1002/cphc.200300636
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
Mapping an uncharted territory: The good correlation between experimental and calculated 183W NMR chemical shifts of polyoxotungstates (see picture) may allow the prediction and assignment of the spectra of unstable or unknown species, and also allow the counterion effect to be addressed.
引用
收藏
页码:517 / 519
页数:3
相关论文
共 21 条
[1]   W-183 NMR OF HETEROPOLYTUNGSTATES AND ISOPOLYTUNGSTATES - EXPLANATIONS OF CHEMICAL-SHIFTS AND BAND ASSIGNMENTS - THEORETICAL CONSIDERATIONS [J].
ACERETE, R ;
HAMMER, CF ;
BAKER, LCW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (20) :5384-5390
[2]  
Bagno A, 2002, EUR J INORG CHEM, P1475
[3]  
Bagno A, 2000, EUR J INORG CHEM, P17
[4]   Effective core potential DFT calculations of nuclear shielding as a tool for the prediction and assignment of the tungsten chemical shift in mono- and polynuclear complexes [J].
Bagno, A ;
Bonchio, M .
CHEMICAL PHYSICS LETTERS, 2000, 317 (1-2) :123-128
[5]   Formation of unsymmetrical polyoxotungstates via transfer of polyoxometalate building blocks.: NMR evidence supports the kinetic stability of the pentatungstate anion, [W5O18]6-, in aqueous solution [J].
Belai, N ;
Sadakane, M ;
Pope, MT .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (09) :2087-2088
[6]   W-183 NMR - A COMPLETE AND UNEQUIVOCAL ASSIGNMENT OF THE TUNGSTEN-TUNGSTEN CONNECTIVITIES IN HETEROPOLYTUNGSTATES VIA TWO-DIMENSIONAL W-183 NMR TECHNIQUES [J].
BREVARD, C ;
SCHIMPF, R ;
TOURNE, G ;
TOURNE, CM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (24) :7059-7063
[7]   DISUBSTITUTED TUNGSTOSILICATES .1. SYNTHESIS, STABILITY, AND STRUCTURE OF THE LACUNARY PRECURSOR POLYANION GAMMA-SIW10O368- [J].
CANNY, J ;
TEZE, A ;
THOUVENOT, R ;
HERVE, G .
INORGANIC CHEMISTRY, 1986, 25 (13) :2114-2119
[8]   Location of protons in anhydrous Keggin heteropolyacids H3PMo12O40 and H3PW12O40 by 1H{31P}/31P{1H} REDOR NMR and DFT quantum chemical calculations [J].
Ganapathy, S ;
Fournier, M ;
Paul, JF ;
Delevoye, L ;
Guelton, M ;
Amoureux, JP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (26) :7821-7828
[9]   Role of alkali metal cation size in the energy and rate of electron transfer to solvent-separated 1:1 [(M+)(Acceptor)] (M+ = Li+, Na+, K+) ion pairs [J].
Grigoriev, VA ;
Cheng, D ;
Hill, CL ;
Weinstock, IA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (22) :5292-5307
[10]   Ab initio methods for the calculation of NMR shielding and indirect spin-spin coupling constants [J].
Helgaker, T ;
Jaszunski, M ;
Ruud, K .
CHEMICAL REVIEWS, 1999, 99 (01) :293-352