Record

Reference numberEC/1968/07
Previous numbersCert XVIII, 80
LevelItem
TitleCraig, David Parker: certificate of election to the Royal Society
DescriptionCitation typed
CitationDeveloped quantitative theory of splitting in the electronic spectra of molecular crystals, recognised and applied quantitative theory of intensity borrowing, and other characteristic phenomena of very weak transitions; experimentally identified all these effects in actual examples, the quantitative results establishing assignments of the transitions an distinguishing pure electronic from vibrationally induced bands. Made first quantitative calculations of band-contours in electronic vapour spectra of medium-sized molecules, e.g., naphthalene; experimentally observed and identified the bands by their contours, so deducing electronic and vibronic assignments. Made quantitative calculations of intensities in vibrationally induced transitions; and of dimensional changes from intensities. Contributed to pi-electron theory in the introduction of configuration-interaction into non-empirical molecular orbital theory; also in describing forms of electron-delocalisation in non-normal aromatics. Contributed to theory of bonds involving d-orbitals in polycovalent second- and third-row elements.
Access statusOpen
Fellows associated with this archive
CodeNameDates
NA4369Craig; David Parker (1919 - 2015)1919 - 2015
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