G. A. Sim

4.3k citations

273 papers · 3.6k · h-index 27

Impact in

Organic Chemistry top 1%
- Organometallic Complex Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
Physical and Theoretical Chemistry top 1%
- Crystallography and molecular interactions

Papers in

Organic Chemistry 126
- Organometallic Complex Synthesis and Catalysis 19
Molecular Biology 75
- Natural product bioactivities and synthesis 24
- Biological Activity of Diterpenoids and Biflavonoids 19

Co-authors: A. T. McPhail (44 shared papers)J. M. Robertson (23 shared papers)T. H. Goodwin (1 shared paper)M. A. Bush (6 shared papers)S. Morris Kupchan (9 shared papers)D. G. Watson (4 shared papers)L. E. Sutton (25 shared papers)G. Ferguson (9 shared papers)
Journals: Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry (23 papers)Acta Crystallographica Section C Crystal Structure Communications (11 papers)Journal of the American Chemical Society (11 papers)Tetrahedron (8 papers)Journal of the Chemical Society Perkin Transactions 1 (7 papers)
Partner nations: United Kingdom United States Japan

In The Last Decade

G. A. Sim

255 papers receiving 3.2k citations

Peers

Countries citing papers authored by G. A. Sim

Since Specialization

Citations

This map shows the geographic impact of G. A. Sim'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 G. A. Sim with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G. A. Sim more than expected).

Fields of papers citing papers by G. A. Sim

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G. A. Sim. 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 G. A. Sim. The network helps show where G. A. Sim may publish in the future.

Co-authors

The 25 scholars most cited alongside G. A. Sim, 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 G. A. Sim Line = papers co-authored together G. A. Sim 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 273 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	The distribution of phase angles for structures containing heavy atoms. II. A modification of the normal heavy-atom method for non-centrosymmetrical structures Acta Crystallographica ·G. A. Sim	1959	212
2	The crystal and molecular structure of benzoic acid Acta Crystallographica ·G. A. Sim, J. M. Robertson, T. H. Goodwin	1955	183
3	The crystal structure of 3-epicaryoptin and the reversal of the currently accepted absolute configuration of clerodin Journal of the Chemical Society Chemical Communications ·D. Rogers, Gülten G. Ünal, David J. Williams, Steven V. Ley, G. A. Sim, Balawant S. Joshi, Kangovi R. Ravindranath	1979	113
4	The crystal and molecular structure of azulene Acta Crystallographica ·J. M. Robertson, H. M. M. Shearer, G. A. Sim, D. G. Watson	1962	103
5	A note on the heavy-atom method Acta Crystallographica ·G. A. Sim	1960	96
6	The reactions of isocyanide complexes of platinum(II): a convenient route to carbene complexes Journal of the Chemical Society D Chemical Communications ·Elizabeth M. Badley, J. Chatt, Raymond L. Richards, G. A. Sim	1969	86
7	The Isolation and Structural Elucidation of a Novel Steroidal Tumor Inhibitor from Acnistus arborescens^1,2 Journal of the American Chemical Society ·S. Morris Kupchan, Raymond W. Doskotch, Pietro Bollinger, A. T. McPhail, G. A. Sim, J. A. Saenz Renauld	1965	84
8	Metal–carbonyl and metal–nitrosyl complexes. Part II. Crystal and molecular structure of the tricarbonylchromiumanisole–1,3,5-trinitrobenzene complex Journal of the Chemical Society A Inorganic Physical Theoretical ·O. L. Carter, A. T. McPhail, G. A. Sim	1966	71
9	Tumor inhibitors. XXIX. Crotepoxide, a novel cyclohexane diepoxide tumor inhibitor from croton macrostachys Journal of the American Chemical Society ·S. Morris Kupchan, R.J. Hemingway, P. Coggon, A. T. McPhail, G. A. Sim	1968	64
10	Oxidative Transformations of Indole Alkaloids. III. Pseudoindoxyls from Yohimbinoid Alkaloids and Their Conversion to “Invert” Alkaloids^1,2 Journal of the American Chemical Society ·Neville Finch, C. W. Gemenden, Iva Hsiu-Chu. Hsu, Ann Kerr, G. A. Sim, W. I. Taylor	1965	62
11	The Structure of Fomannosin, a Novel Sesquiterpene Metabolite of the Fungus Fomes annosus Journal of the American Chemical Society ·John A. Kepler, Monroe E. Wall, J. E. Mason, Charlie Basset, A. T. McPhail, G. A. Sim	1967	52
12	Stereochemistry of the diterpenoids—IV Tetrahedron ·A. Ian Scott, Frank McCapra, F. Comer, STUART SUTHERLAND, Douglas W. Young, G. A. Sim, G. Ferguson	1964	50
13	Complexes of organoaluminium compounds. Part VI. Crystal and molecular structures of cis- and trans-cyclotri-µ-methylamido-tris(dimethylaluminium) and of cyclodi-µ-dimethylamido-bis(dimethylaluminium) Journal of the Chemical Society Dalton Transactions ·G. M. McLaughlin, G. A. Sim, J.D. Smith	1972	48
14	Developments in the apparatus used in Europe, including U.S.S.R., for studies of electron diffraction in vapours G. A. Sim, L. E. Sutton, Heinz Oberhammer	1976	43
15	Metal–carbonyl and metal–nitrosyl complexes. Part V. The crystal and molecular structure of the tricarbonylchromium derivative of methyl benzoate Journal of the Chemical Society A Inorganic Physical Theoretical ·O. L. Carter, A. T. McPhail, G. A. Sim	1967	41
16	Metal–carbonyl and metal–nitrosyl complexes. Part X. Photochemical generation of organometallic nitrenes and the crystal structure of a carbonylation product, isocyanatocarbonyl-π-cyclopentadienylbis(triphenylphosphine)molybdenum Journal of the Chemical Society A Inorganic Physical Theoretical ·A. T. McPhail, G. R. Knox, Christopher G. Robertson, G. A. Sim	1971	41
17	Perjodatoxydation von Phenolen. VIII. 18O-Studien zum Mechanismus der oxydativen Spaltung der Monoäther des Brenzcatechins und des Hydrochinons. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry ·Erich Adler, Ingemar Falkehag, Bengt Smith, G. A. Sim, Olof Theander, H. Flood	1962	40
18	Crystal and molecular structures of difluorobis-(π-cyclopentadienyl)zirconium(IV) and di-iodobis-(π-cyclopentadienyl)zirconium(IV) Journal of the Chemical Society A Inorganic Physical Theoretical ·M. A. Bush, G. A. Sim	1971	40
19	Tumor inhibitors. LXVII. Eupacunin, a novel antileukemic sesquiterpene lactone from Eupatorium cuneifolium Journal of the American Chemical Society ·S. Morris Kupchan, Megumi Maruyama, R.J. Hemingway, Jane C. Hemingway, S. Shibuya, Takashi Fujita, P. D. Cradwick, A. D. U. HARDY, G. A. Sim	1971	35
20	The Isolation and Structural Elucidation of Two Novel Sesquiterpenoid Tumor Inhibitors from Elephantopus elatus^1,2 Journal of the American Chemical Society ·S. Morris Kupchan, Y. Aynehchi, John M. Cassady, A. T. McPhail, G. A. Sim, Heinrich K. Schnoes, Alma L. Burlingame	1966	35

About G. A. Sim

G. A. Sim is a scholar working on Organic Chemistry, Molecular Biology, Inorganic Chemistry, Spectroscopy and Oncology, having authored 273 papers that have together received 3.6k indexed citations. Recurring topics across this work include Metal complexes synthesis and properties (27 papers), Sesquiterpenes and Asteraceae Studies (26 papers), Natural product bioactivities and synthesis (24 papers), Crystal structures of chemical compounds (24 papers), Biological Activity of Diterpenoids and Biflavonoids (19 papers), Organometallic Complex Synthesis and Catalysis (19 papers), Crystallography and molecular interactions (16 papers) and Molecular spectroscopy and chirality (16 papers). The work is most often cited by research in Organic Chemistry (1.6k citations), Physical and Theoretical Chemistry (466 citations), Inorganic Chemistry (622 citations), Spectroscopy (540 citations) and Biochemistry (146 citations). G. A. Sim has collaborated with scholars based in United Kingdom, United States and Japan. Frequent co-authors include A. T. McPhail, J. M. Robertson, T. H. Goodwin, M. A. Bush, S. Morris Kupchan, D. G. Watson, L. E. Sutton, G. Ferguson, Andrew T. McPhail and A. D. U. HARDY. Their work appears in journals such as Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry, Acta Crystallographica Section C Crystal Structure Communications, Journal of the American Chemical Society, Tetrahedron and Journal of the Chemical Society Perkin Transactions 1.

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