共 3 条
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.
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页码:1414 / 1416
页数:3
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