Discrimination of geometrical epoxide isomers by ENDOR Spectroscopy and DFT calculations: The role of hydrogen bonds

被引:10
|
作者
Murphy, Damien M. [1 ]
Fallis, Ian A. [1 ]
Willock, David J. [1 ]
Landon, James [1 ]
Carter, Emma [1 ]
Vinck, Evi [2 ]
机构
[1] Cardiff Univ, Sch Chem, Cardiff CF10 3AT, S Glam, Wales
[2] Univ Instelling Antwerp, SIBAC Lab, Dept Phys, B-2610 Antwerp, Belgium
基金
英国工程与自然科学研究理事会;
关键词
chirality; density functional calculations; ENDOR spectroscopy; epoxides; EPR spectroscopy;
D O I
10.1002/anie.200703537
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) EPR and ENDOR spectroscopies combined with DFT calculations have revealed the selective binding of a cis over a trans epoxide to a chiral vanadyl salen complex (see picture). Complementary DFT calculations identified a weak electrostatic interaction supplemented by multiple hydrogen-bonding contacts as the origins of this selectivity. These observations were experimentally confirmed in frozen solution by orientation selective ENDOR measurements. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1414 / 1416
页数:3
相关论文
共 3 条
  • [1] Uncovering Intramolecular π-Type Hydrogen Bonds in Solution by NMR Spectroscopy and DFT Calculations
    Mastrorilli, Piero
    Gallo, Vito
    Todisco, Stefano
    Latronico, Mario
    Saielli, Giacomo
    CHEMISTRY-A EUROPEAN JOURNAL, 2016, 22 (23) : 7964 - 7969
  • [2] Determining the geometry of hydrogen bonds in solids with picometer accuracy by quantum chemical calculations and NMR spectroscopy
    Schulz-Dobrick, M
    Metzroth, T
    Spiess, HW
    Gauss, J
    Schnell, I
    CHEMPHYSCHEM, 2005, 6 (02) : 315 - 327
  • [3] Hydrogen Generation by Water Reduction with [Cp2*Ti(OTf)]: Identifying Elemental Mechanistic Steps by Combined In Situ FTIR and In Situ EPR Spectroscopy Supported by DFT Calculations
    Hollmann, Dirk
    Grabow, Kathleen
    Jiao, Haijun
    Kessler, Monty
    Spannenberg, Anke
    Beweries, Torsten
    Bentrup, Ursula
    Brueckner, Angelika
    CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (41) : 13705 - 13713