| RefNo | EC/1968/07 |
| Previous numbers | Cert XVIII, 80 |
| Level | Item |
| Title | Craig, David Parker: certificate of election to the Royal Society |
| Description | Citation typed |
| Citation | Developed 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. |
| AccessStatus | Open |
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Fellows associated with this archive
| Code | PersonName | Dates |
| NA4369 | Craig; David Parker (1919 - 2015) | 1919 - 2015 |