D. A. Ramsay

9.8k citations

165 papers · 8.2k · 4 hit papers · h-index 46

Impact in

Spectroscopy top 0.05%
- Spectroscopy and Laser Applications
- Molecular Spectroscopy and Structure
Atomic and Molecular Physics, and Optics top 0.2%
- Advanced Chemical Physics Studies
- Spectroscopy and Quantum Chemical Studies
- Atomic and Molecular Physics

Papers in

Spectroscopy 122
- Spectroscopy and Laser Applications 91
- Molecular Spectroscopy and Structure 49
- Molecular spectroscopy and chirality 17
Atomic and Molecular Physics, and Optics 78
- Advanced Chemical Physics Studies 62
- Spectroscopy and Quantum Chemical Studies 16

Co-authors: Dennis J. Clouthier (5 shared papers)K. Dressler (2 shared papers)J. W. C. Johns (4 shared papers)F. W. Birss (20 shared papers)E.H. Fink (21 shared papers)John M. Brown (4 shared papers)Robert L. Kuczkowski (1 shared paper)Marlin D. Harmony (1 shared paper)
Journals: Journal of Molecular Spectroscopy (33 papers)The Journal of Chemical Physics (21 papers)Chemical Physics Letters (15 papers)Canadian Journal of Physics (47 papers)Journal of the American Chemical Society (5 papers)
Partner nations: Canada United States Germany

In The Last Decade

D. A. Ramsay

163 papers receiving 7.6k citations

D. A. Ramsay's Hit Papers

align trajectories log scale

The Spectroscopy of Formaldehyde and Thioformaldehyde 1983 · 426 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1983 Annual Review of Physical Chemistry
1979 Journal of Physical and Chemical Reference Data
1975 Journal of Molecular Spectroscopy
1952 Journal of the American Chemical Society

Peers

Countries citing papers authored by D. A. Ramsay

Since Specialization

Citations

This map shows the geographic impact of D. A. Ramsay's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by D. A. Ramsay with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D. A. Ramsay more than expected).

Fields of papers citing papers by D. A. Ramsay

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Ramsay. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by D. A. Ramsay. The network helps show where D. A. Ramsay may publish in the future.

Co-authors

The 25 scholars most cited alongside D. A. Ramsay, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with D. A. Ramsay Line = papers co-authored together D. A. Ramsay links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 165 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Molecular structures of gas-phase polyatomic molecules determined by spectroscopic methods Journal of Physical and Chemical Reference Data ·Marlin D. Harmony, Victor W. Laurie, Robert L. Kuczkowski, R. H. Schwendeman, D. A. Ramsay, F. J. Lovas, Walter J. Lafferty, Arthur G. Maki Hit paper breakdown →	1979	835
2	The labeling of parity doublet levels in linear molecules Journal of Molecular Spectroscopy ·John M. Brown, Jon T. Hougen, Klaus Huber, J. W. C. Johns, I. Kopp, H. Lefèbvre-Brion, A. J. Merer, D. A. Ramsay, J. Rostas, Richard N. Zare Hit paper breakdown →	1975	722
3	Intensities and Shapes of Infrared Absorption Bands of Substances in the Liquid Phase Journal of the American Chemical Society ·D. A. Ramsay Hit paper breakdown →	1952	550
4	The Spectroscopy of Formaldehyde and Thioformaldehyde Annual Review of Physical Chemistry ·Dennis J. Clouthier, D. A. Ramsay Hit paper breakdown →	1983	426
5	The electronic absorption spectra of NH2 and ND2 Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences ·K. Dressler, D. A. Ramsay	1959	346
6	Electronic absorption spectra of HCO and DCO radicals Discussions of the Faraday Society ·J. W. C. Johns, S. H. Priddle, D. A. Ramsay	1963	158
7	Absorption Spectra of SH and SD Produced by Flash Photolysis of H2S and D2S The Journal of Chemical Physics ·D. A. Ramsay	1952	139
8	ABSORPTION SPECTRA OF THE HALOGEN MONOXIDES Canadian Journal of Physics ·R. A. Durie, D. A. Ramsay	1958	133
9	The 7500 to 4500 Å absorption system of the free HCO radical Proceedings of the Royal Society of London A Mathematical and Physical Sciences ·G. Herzberg, D. A. Ramsay	1955	127
10	Axis Switching in the Transition of HCO: Determination of Molecular Geometry Canadian Journal of Physics ·J. M. Brown, D. A. Ramsay	1975	118
11	THE 4 550 Å BAND SYSTEM OF GLYOXAL: I. ROTATIONAL ANALYSES OF THE (0–0) BANDS FOR C₂H₂O₂, C₂HDO₂, AND C₂D₂O₂ Canadian Journal of Physics ·Josef Paldus, D. A. Ramsay	1967	117
12	The 4875 Å Band System of cis Glyoxal Canadian Journal of Physics ·G. N. Currie, D. A. Ramsay	1971	106
13	Analysis of CH2 a 1A1 (1,0,0) and (0,0,1) Coriolis-coupled states, a 1A1–X 3B1 spin–orbit coupling, and the equilibrium structure of CH2 a 1A1 state The Journal of Chemical Physics ·Hrvoje Petek, David J. Nesbitt, David C. Darwin, Peter R. Ogilby, C. Bradley Moore, D. A. Ramsay	1989	106
14	The A'^{3}Σ_{g} - Χ'^{3}Π_{u} Band System of the C_{2} Molecule. The Astrophysical Journal ·E. A. Ballik, D. A. Ramsay	1963	103
15	The Intensities of Carbonyl Bands in the Infrared Spectra of Steroids¹ Journal of the American Chemical Society ·Richard N. Jones, D. A. Ramsay, D. S. Keir, Konrad Dobriner	1952	102
16	Computer assistance in the analysis of molecular spectra Computer Physics Communications ·F. W. Birss, D. A. Ramsay	1985	100
17	The absorption spectrum of NH₂ between 6250 and 9500 Å Canadian Journal of Physics ·J. W. C. Johns, D. A. Ramsay, Stephen C. Ross	1976	98
18	Visible absorption and magnetic-rotation spectroscopy of 1CH2: Analysis of the 1A1 state and the 1A1–3B1 coupling The Journal of Chemical Physics ·Hrvoje Petek, David J. Nesbitt, C. Bradley Moore, F. W. Birss, D. A. Ramsay	1987	96
19	The 4550 Å band system of glyoxal. II. Vibration–rotational analyses for 12 bands of C₂H₂O₂ Canadian Journal of Physics ·F. W. Birss, John M. Brown, A. R. H. Cole, A Lofthus, S. L. N. G. Krishnamachari, G.A. Osborne, Josef Paldus, D. A. Ramsay, L. Watmann	1970	96
20	THE ABSORPTION SPECTRA OF HNO AND DNO Canadian Journal of Physics ·J. L. Bancroft, J. Michael Hollas, D. A. Ramsay	1962	95

About D. A. Ramsay

D. A. Ramsay is a scholar working on Spectroscopy, Atomic and Molecular Physics, and Optics, Atmospheric Science, Physical and Theoretical Chemistry and Electrical and Electronic Engineering, having authored 165 papers that have together received 8.2k indexed citations. Recurring topics across this work include Spectroscopy and Laser Applications (91 papers), Atmospheric Ozone and Climate (63 papers), Advanced Chemical Physics Studies (62 papers), Molecular Spectroscopy and Structure (49 papers), Photochemistry and Electron Transfer Studies (22 papers), Molecular spectroscopy and chirality (17 papers), Spectroscopy and Quantum Chemical Studies (16 papers) and Laser Design and Applications (10 papers). The work is most often cited by research in Spectroscopy (4.7k citations), Atomic and Molecular Physics, and Optics (5.3k citations), Physical and Theoretical Chemistry (1.3k citations), Atmospheric Science (2.5k citations) and Catalysis (297 citations). D. A. Ramsay has collaborated with scholars based in Canada, United States and Germany. Frequent co-authors include Dennis J. Clouthier, K. Dressler, J. W. C. Johns, F. W. Birss, E.H. Fink, John M. Brown, Robert L. Kuczkowski, Marlin D. Harmony, R. H. Schwendeman and Arthur G. Maki. Their work appears in journals such as Journal of Molecular Spectroscopy, The Journal of Chemical Physics, Chemical Physics Letters, Canadian Journal of Physics and Journal of the American Chemical Society.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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