Issue 0, 1980
From the journal:

Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics

Zeeman effect of chlorine nuclear quadrupole resonance and hydrogen bonding in 2,6-, 2,5- and 3,5-dichlorophenols

R. Chandramani,   N. Devaraj,   K. R. Sridharan,   V. S. S. Sastry  and  J. Ramakrishna  

Abstract

The Zeeman effect of chlorine nuclear quadrupole resonance in polycrystalline samples of 2,6-, 2,5 and 3,5-dichlorophenol has been investigated at room temperature in order to study the effect of hydrogen bonding on the electric field gradient asymmetry parameter η. While the two n.q.r. lines in 3,5-dichlorophenol gave an asymmetry parameter of ≈ 10%, those in 2,6- and 2,5-dichlorophenol gave different values of η for the two chlorines. The chlorine atom which is ortho to the OH group and involved in hydrogen bonding (i.e., corresponding to the low frequency line) gave an asymmetry parameter of 0.21 in 2,6-dichlorophenol and 0.17 in 2,5-dichlorophenol while the other chlorine (i.e., corresponding to the high frequency line) gave a lower value of 0.12 in 2,6-dichlorophenol and 0.11 in 2,5-dichlorophenol. These values of η are discussed in terms of hydrogen bonding and bond parameters.

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Article information

DOI
https://doi.org/10.1039/F29807601055
Article type
Paper

J. Chem. Soc., Faraday Trans. 2, 1980,76, 1055-1060

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Zeeman effect of chlorine nuclear quadrupole resonance and hydrogen bonding in 2,6-, 2,5- and 3,5-dichlorophenols

R. Chandramani, N. Devaraj, K. R. Sridharan, V. S. S. Sastry and J. Ramakrishna, J. Chem. Soc., Faraday Trans. 2, 1980, 76, 1055 DOI: 10.1039/F29807601055

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