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Title
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Probing the role of weak outer sphere interactions (H-bonds) in VO(3,5-^{t}Bu_{2}-salophen): epoxide adducts by EPR, ENDOR and HYSCORE
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Author
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Abstract
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| The role of H-bonds in controlling the binding mode of epoxides, namely propylene oxide (3) and cis-2,3-epoxybutane (4), to the vanadyl salen-type complexes, N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexane-diamino-vanadium (IV) oxide, [VO(1)], and VO(3,5-tBu2-salophen), [VO(2)], have been examined using cw-EPR, cw-ENDOR and HYSCORE spectroscopy. One of the methine protons from the cyclohexyl backbone in [VO(1)] has previously been shown to form a weak H-bond with the epoxide oxygen atom. The absence of this methine proton in the salophen derivative [VO(2)] removes this H-bonding ability of the complex and in turn weakens the epoxide interaction. |
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Language
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English
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Source (journal)
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Chemical physics letters. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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2010
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ISSN
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0009-2614
[print]
1873-4448
[online]
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DOI
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10.1016/J.CPLETT.2009.12.066
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Volume/pages
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486
:1/3
(2010)
, p. 74-79
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ISI
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000273986500016
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Full text (Publisher's DOI)
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