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Jonathan Tennyson

Researcher at University College London

Publications -  1061
Citations -  52361

Jonathan Tennyson is an academic researcher from University College London. The author has contributed to research in topics: Ab initio & Excited state. The author has an hindex of 97, co-authored 1007 publications receiving 47077 citations. Previous affiliations of Jonathan Tennyson include SERC Reliability Corporation & University of Helsinki.

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Book ChapterDOI

The Calculation of Ro-Vibrational Spectra Using Supercomputers

TL;DR: Developments in the use of supercomputers for the generation of first principles, synthetic, ro-vibrational spectra for triatomic molecules, and a previously published two-step procedure for calculating rotationally excited states are discussed.

Data for: MARVEL analysis of the measured high-resolution rovibrational spectra of H$_2$$^{32}$S

TL;DR: In this article, the measured active rotational vibration energy levels (MEVLE) were determined for the ground electronic state using the Measured Active Rotational-Vibrational Energy Levels (Marvel) technique.
Journal ArticleDOI

Theoretical rovibronic spectroscopy of the calcium monohydroxide radical (CaOH).

TL;DR: In this article, a high-level ab initio theory and variational nuclear motion calculations were used to construct potential energy surfaces (PESs) for the X2Σ+ and A2Π electronic states along with A-X transition dipole moment surfaces (DMSs).
Journal ArticleDOI

Quantum mechanics gets real

TL;DR: The fundamental aspects of non-relativistic quantum mechanics have remained essentially unchanged ever since, physics and chemistry have been driven largely by experiment as discussed by the authors, and the difficulty is only that the exact application of these laws leads to equations much too complicated to be soluble.
Journal ArticleDOI

Theoretical study of the low-energy electron-collision cross sections of isomers HOOCl, HOClO and HClOO in gas phase

TL;DR: In this article, a systematic study considering basis set, polarisation and the Born closure technique is performed, and cross sections for the elastic electron scattering by HOOCl, HOClO and HClOO isomers are calculated using the R-matrix method.