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- W1968593755 abstract "The hydrogen-bonded complexes formed from interaction of trihalomethanes CHX3 (X = F, Cl, Br) with nitrosyl hydride HNO were studied using ab initio MO calculations at the second-order perturbation theory (MP2/6-311++G(d,p)). Each interaction contains at least five separate equilibrium structures. Calculated binding energies range from 4 to 8 kJ mol−1 with both ZPE and BSSE corrections. While CHBr3 leads to the most stable complexes with HNO, CHF3 forms the least stable counterparts. The strength of complexes thus tends to increase from F to Cl to Br, which is consistent with a decrease of deprotonation enthalpy of the corresponding C–H bonds. It is remarkable that all the C–H and N–H bonds are shortened upon complexation, giving rise to an increase of their stretching frequencies. A blue shift is thus observed for the N–H bonds of the type N–H⋯X (X = F, Cl, Br); such a contraction of the covalent N–H bond is extremely rare." @default.
- W1968593755 created "2016-06-24" @default.
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- W1968593755 creator A5053753122 @default.
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- W1968593755 date "2009-01-01" @default.
- W1968593755 modified "2023-09-23" @default.
- W1968593755 title "Interaction of CHX<sub>3</sub>(X = F, Cl, Br) with HNO induces remarkable blue shifts of both C–H and N–H bonds" @default.
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- W1968593755 doi "https://doi.org/10.1039/b816112g" @default.
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