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RefNoEC/1991/24
LevelItem
TitleMurrell, John Norman: certificate of election to the Royal Society
Date1989
DescriptionCitation typed
CitationJ.N. Murrell's contributions to chemistry are contained in 270 papers and seven books. Major contributions in the fields of electronic spectroscopy, intermolecular forces, potential energy functions, and valence theory have been made.
In electronic spectroscopy methods were derived for determining quantitative substituent parameters from frequency shifts; inductive shifts of pi and sigma electrons could be of opposite sign, and this was later shown to be valuable for assigning photoelectron spectra.
Researches on strongly conjugating substituents and intramolecular charge transfer have not been superseded.
In the field of intermolecular forces, Murrell was the first to derive the so called MSMA exchange perturbation method which is widely used for interactions in the Van der Waals region and is the basis of several semi-empirical potentials. He showed that the variation perturbation method is invaluable for calculating intermolecular parameters and for deriving damping factors for dispersion terms.
A new general strategy for obtaining analytical potential functions for small polyatomic molecules, based on the manybody expansion was devised. These potentials have been used for studies of vibrational motion, photodissociation and bimolecular reactions. They have been widely used in related studies by other leading workers. A number of important publications have used electronic structure methods. For example there is the determination of the correct geometry of CH5+ and to show that HNSi was more stable than HsiN.
AccessStatusClosed
Fellows associated with this archive
CodePersonNameDates
NA4147Murrell; John Norman (1932 - 2016)1932 - 2016
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