A.G. Orpen

32.4k total citations · 4 hit papers
532 papers, 26.7k citations indexed

About

A.G. Orpen is a scholar working on Organic Chemistry, Inorganic Chemistry and Oncology. According to data from OpenAlex, A.G. Orpen has authored 532 papers receiving a total of 26.7k indexed citations (citations by other indexed papers that have themselves been cited), including 425 papers in Organic Chemistry, 341 papers in Inorganic Chemistry and 84 papers in Oncology. Recurrent topics in A.G. Orpen's work include Organometallic Complex Synthesis and Catalysis (328 papers), Asymmetric Hydrogenation and Catalysis (169 papers) and Synthesis and characterization of novel inorganic/organometallic compounds (87 papers). A.G. Orpen is often cited by papers focused on Organometallic Complex Synthesis and Catalysis (328 papers), Asymmetric Hydrogenation and Catalysis (169 papers) and Synthesis and characterization of novel inorganic/organometallic compounds (87 papers). A.G. Orpen collaborates with scholars based in United Kingdom, Spain and United States. A.G. Orpen's co-authors include Lee Brammer, Frank H. Allen, David J. Watson, Olga Kennard, Neil G. Connelly, Christopher J. Adams, Paul G. Pringle, Dario Braga, Nicholas C. Norman and Roger W. Alder and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Chemical Society Reviews.

In The Last Decade

A.G. Orpen

523 papers receiving 25.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Tables of bond lengths determined by X-ray and neutron diffraction. Part 1. Bond lengths in organic compounds

1987 6.4k citations Frank H. Allen, Olga Kennard et al. Journal of the Chemical Society Perkin Transactions 2 profile →
Mechanochemistry: opportunities for new and cleaner synthesis

2011 2.5k citations Christopher J. Adams, A.G. Orpen et al. profile →
Supplement. Tables of bond lengths determined by X-ray and neutron diffraction. Part 2. Organometallic compounds and co-ordination complexes of the d- and f-block metals

1989 1.2k citations A.G. Orpen, Lee Brammer et al. profile →
Retrieval of Crystallographically-Derived Molecular Geometry Information

2004 725 citations Stephanie E. Harris, A.G. Orpen et al. profile →

Peers

Countries citing papers authored by A.G. Orpen

Since Specialization

Citations

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

Fields of papers citing papers by A.G. Orpen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A.G. Orpen

This figure shows the co-authorship network connecting the top 25 collaborators of A.G. Orpen. A scholar is included among the top collaborators of A.G. Orpen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with A.G. Orpen. A.G. Orpen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Potassium S2N-heteroscorpionates: structure and iridaboratrane formation 2011 ·Dalton Transactions ·(unknown), Neil G. Connelly, M.F. Haddow, A. Hamilton, Matteo Lusi, U. Baisch, A.G. Orpen	19
2	Crystal engineering of lattice metrics of perhalometallate salts and MOFs 2010 ·Proceedings of the National Academy of Sciences ·Christopher J. Adams, M.F. Haddow, Matteo Lusi, A.G. Orpen	63
3	Ligand effects in chromium diphosphine catalysed olefin co-trimerisation and diene trimerisation 2009 ·Dalton Transactions ·(unknown), (unknown), (unknown), Claire L. McMullin, A.G. Orpen, Duncan F. Wass	45
4	Chiral triaryl phosphite-based palladacycles and platinacycles: synthesis and application to asymmetric Lewis acid catalysis 2009 ·Dalton Transactions ·Robin B. Bedford, (unknown), M.F. Haddow, Lukasz T. Pilarski, A.G. Orpen, Paul G. Pringle, Richard L. Wingad	19
5	Flexible scorpionates for transfer hydrogenation: the first example of their catalytic application 2008 ·Dalton Transactions ·Nikolaos Tsoureas, Gareth R. Owen, A. Hamilton, A.G. Orpen	39
6	A simple entry into nido-C2B10 clusters: HCl promoted cleavage of the C–C bond in ortho-carboranyl diphosphines 2008 ·Dalton Transactions ·J.P.H. Charmant, M.F. Haddow, (unknown), Nicholas C. Norman, A.G. Orpen, Paul G. Pringle	26
7	One electron oxidation of chromium N,N-bis(diarylphosphino)amine and bis(diarylphosphino)methane complexes relevant to ethene trimerisation and tetramerisation 2007 ·Dalton Transactions ·(unknown), M.F. Haddow, A.G. Orpen, Duncan F. Wass	75
8	Synthesis and reactivity of cobalt boryl complexes 2006 ·Dalton Transactions ·Christopher J. Adams, R.A. Baber, Andrei S. Batsanov, (unknown), J.P.H. Charmant, M.F. Haddow, Judith A. K. Howard, Wai Han Lam, Zhenyang Lin, Todd B. Marder, Nicholas C. Norman, A.G. Orpen	73
9	Thermal solid state synthesis of coordination complexes from hydrogen bonded precursors 2005 ·Chemical Communications ·Christopher J. Adams, P.C. Crawford, A.G. Orpen, T.J. Podesta, (unknown)	45
10	Primary amido substituted diborane(4) compounds and imidodiborate(4) anions 2005 ·Dalton Transactions ·R.A. Baber, J.P.H. Charmant, (unknown), (unknown), M.F. Haddow, Nicholas C. Norman, A.G. Orpen, Christopher A. Russell, John M. Slattery	14
11	Development of a Ligand Knowledge Base, Part 1: Computational Descriptors for Phosphorus Donor Ligands 2005 ·Chemistry - A European Journal ·Natalie Fey, Athanassios C. Tsipis, Stephanie E. Harris, Jeremy N. Harvey, A.G. Orpen, (unknown)	117
12	Special effects of ortho-isopropylphenyl groups. Diastereoisomerism in platinum(ii) and palladium(ii) complexes of helically chiral PAr3 ligands 2005 ·Dalton Transactions ·R.A. Baber, A.G. Orpen, Paul G. Pringle, Matthew Wilkinson, Richard L. Wingad	27
13	On the relative magnitudes of cisand transinfluences in metal complexes 2001 ·Chemical Communications ·(unknown), A.G. Orpen	1
14	Structural studies of [Pt(CNMe)4][M(mnt)2]n (M = Pd or Pt, n = 1 or 2): structure-dependent paramagnetism of three crystal forms of [Pt(CNMe)4][Pt(mnt)2]2 1998 ·(unknown), (unknown), (unknown), (unknown), A.G. Orpen, Peter Thornton, J.A.A. Crossley	1
15	A metal-containing synthon for crystal engineering: synthesis of the hydrogen bond ribbon polymer [4,4'-H 2 bipy][MCl 4 ] (M = Pd,Pt) 1998 ·(unknown), A.G. Orpen	4
16	Synthesis and characterization of cationic dinuclear complexes of platinum with bridging hydrides: crystal structures of [Pt 2 (μ-H) 2 {Bu 2 t P(CH 2 ) 3 PtBu 2 } 2 ][BF 4 ] 2 and [Pt 2 (μ-H) 2 {P(C 6 H 1 1 ) 2 P(CH 2 ) 3 P(C 6 H 1 1 ) 2 } } [BF 4 ] 2 1996 ·(unknown), (unknown), (unknown), (unknown), Nicholas Carr, A.G. Orpen	1
17	A new ligand environment in organolanthanoid chemistry: sterically hindered, chelating diolato ligands and the X-ray structure of 1992 ·Bristol Research (University of Bristol) ·(unknown), Nico Meijboom, A.G. Orpen	1
18	The role of transition metal atoms as hydrogen bond acceptors: A neutron diffraction study of [ 1991 ·Bristol Research (University of Bristol) ·Lee Brammer, (unknown), (unknown), (unknown), A.G. Orpen, (unknown)	2
19	Tables of bond lengths determined by X-ray and neutron diffraction. Part 1. Bond lengths in organic compounds breakdown → 1987 ·Journal of the Chemical Society Perkin Transactions 2 ·Frank H. Allen, Olga Kennard, David J. Watson, Lee Brammer, A.G. Orpen, (unknown)	6415
20	Carbon-carbon bond formation at dinuclear metal centres 1982 ·Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences ·Robert E. Colborn, Andrew F. Dyke, Selby A. R. Knox, (unknown), Kevin A. Mead, A.G. Orpen, Jean‐Michel Roué, Peter Woodward	3

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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