Emmanuel Callens

857 total citations
25 papers, 744 citations indexed

About

Emmanuel Callens is a scholar working on Organic Chemistry, Materials Chemistry and Inorganic Chemistry. According to data from OpenAlex, Emmanuel Callens has authored 25 papers receiving a total of 744 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Organic Chemistry, 12 papers in Materials Chemistry and 6 papers in Inorganic Chemistry. Recurrent topics in Emmanuel Callens's work include Organometallic Complex Synthesis and Catalysis (12 papers), Synthetic Organic Chemistry Methods (10 papers) and Mesoporous Materials and Catalysis (6 papers). Emmanuel Callens is often cited by papers focused on Organometallic Complex Synthesis and Catalysis (12 papers), Synthetic Organic Chemistry Methods (10 papers) and Mesoporous Materials and Catalysis (6 papers). Emmanuel Callens collaborates with scholars based in Saudi Arabia, France and United States. Emmanuel Callens's co-authors include Anthony G. M. Barrett, Jean‐Marie Basset, Edy Abou‐Hamad, Andrew Burton, Christophe Copéret, Manoja K. Samantaray, Igor Larrosa, Andrew J. Burton, David Henderson and Yin Chen and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Chemical Communications.

In The Last Decade

Emmanuel Callens

25 papers receiving 739 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Emmanuel Callens Saudi Arabia 15 514 234 228 102 81 25 744
Margherita Pucino Switzerland 13 424 0.8× 210 0.9× 171 0.8× 114 1.1× 86 1.1× 16 641
Jürgen G.E. Krauter Germany 10 789 1.5× 297 1.3× 208 0.9× 91 0.9× 49 0.6× 11 943
Amritanshu Sinha United States 12 487 0.9× 168 0.7× 90 0.4× 42 0.4× 78 1.0× 14 617
Tetsu Yamakawa Japan 18 806 1.6× 148 0.6× 445 2.0× 112 1.1× 54 0.7× 59 1.2k
Hsueh‐Ju Liu Taiwan 14 332 0.6× 193 0.8× 234 1.0× 78 0.8× 160 2.0× 30 645
Trevor Janes Canada 14 388 0.8× 141 0.6× 390 1.7× 69 0.7× 30 0.4× 19 699
Edmund J. Mozeleski United States 6 379 0.7× 115 0.5× 166 0.7× 265 2.6× 30 0.4× 9 620
Jinliang Jiang China 11 362 0.7× 162 0.7× 392 1.7× 58 0.6× 21 0.3× 11 675
Amina Tijani France 5 860 1.7× 322 1.4× 460 2.0× 234 2.3× 37 0.5× 7 991
Emile Kuntz France 11 435 0.8× 139 0.6× 250 1.1× 40 0.4× 29 0.4× 16 639

Countries citing papers authored by Emmanuel Callens

Since Specialization
Citations

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

Fields of papers citing papers by Emmanuel Callens

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Emmanuel Callens. 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 Emmanuel Callens. The network helps show where Emmanuel Callens may publish in the future.

Co-authorship network of co-authors of Emmanuel Callens

This figure shows the co-authorship network connecting the top 25 collaborators of Emmanuel Callens. A scholar is included among the top collaborators of Emmanuel Callens 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 Emmanuel Callens. Emmanuel Callens is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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Dey, Raju, Manoja K. Samantaray, Albert Poater, et al.. (2016). Synthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(vi) methyl complex: application in olefin metathesis. Chemical Communications. 52(75). 11270–11273. 9 indexed citations
3.
Credendino, Raffaele, et al.. (2015). Fluxional Behavior of Molecular WMe6 and of Silica Grafted WMe6. Organometallics. 34(3). 663–668. 3 indexed citations
4.
Callens, Emmanuel, Albert Poater, Manoja K. Samantaray, et al.. (2015). Silica-Supported Tungsten Carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1): New Efficient Catalysts for Alkyne Cyclotrimerization. Organometallics. 34(4). 690–695. 24 indexed citations
5.
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Callens, Emmanuel, et al.. (2015). Unsaturated fatty acid esters metathesis catalyzed by silica supported WMe5. Journal of Molecular Catalysis A Chemical. 411. 344–348. 2 indexed citations
7.
Callens, Emmanuel, et al.. (2014). Cyclooctane Metathesis Catalyzed by Silica‐Supported Tungsten Pentamethyl [(SiO)W(Me)5]: Distribution of Macrocyclic Alkanes. Chemistry - A European Journal. 20(46). 15089–15094. 22 indexed citations
8.
9.
Callens, Emmanuel, et al.. (2014). Direct observation of supported W bis-methylidene from supported W-methyl/methylidyne species. Chemical Communications. 50(30). 3982–3985. 16 indexed citations
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Kermagoret, Anthony, Rachel N. Kerber, Matthew P. Conley, et al.. (2014). Chlorodiethylaluminum supported on silica: A dinuclear aluminum surface species with bridging μ2-Cl-ligand as a highly efficient co-catalyst for the Ni-catalyzed dimerization of ethene. Journal of Catalysis. 313. 46–54. 40 indexed citations
12.
Kermagoret, Anthony, Rachel N. Kerber, Matthew P. Conley, et al.. (2013). Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum. Dalton Transactions. 42(35). 12681–12681. 31 indexed citations
13.
Samantaray, Manoja K., Emmanuel Callens, Edy Abou‐Hamad, et al.. (2013). WMe6 Tamed by Silica: ≡Si–O–WMe5 as an Efficient, Well-Defined Species for Alkane Metathesis, Leading to the Observation of a Supported W–Methyl/Methylidyne Species. Journal of the American Chemical Society. 136(3). 1054–1061. 73 indexed citations
14.
Chen, Yin, Emmanuel Callens, Edy Abou‐Hamad, et al.. (2012). [(SiO)TaVCl2Me2]: A Well‐Defined Silica‐Supported Tantalum(V) Surface Complex as Catalyst Precursor for the Selective Cocatalyst‐Free Trimerization of Ethylene. Angewandte Chemie International Edition. 51(47). 11886–11889. 43 indexed citations
15.
Chen, Yin, Emmanuel Callens, Edy Abou‐Hamad, et al.. (2012). [(SiO)TaVCl2Me2]: A Well‐Defined Silica‐Supported Tantalum(V) Surface Complex as Catalyst Precursor for the Selective Cocatalyst‐Free Trimerization of Ethylene. Angewandte Chemie. 124(47). 12056–12059. 39 indexed citations
16.
Kerber, Rachel N., Anthony Kermagoret, Emmanuel Callens, et al.. (2012). Nature and Structure of Aluminum Surface Sites Grafted on Silica from a Combination of High-Field Aluminum-27 Solid-State NMR Spectroscopy and First-Principles Calculations. Journal of the American Chemical Society. 134(15). 6767–6775. 66 indexed citations
17.
Callens, Emmanuel, Andrew Burton, Andrew J. P. White, & Anthony G. M. Barrett. (2008). Mechanistic study on benzylic oxidations catalyzed by bismuth(III) salts: X-ray structures of two bismuth–picolinate complexes. Tetrahedron Letters. 49(23). 3709–3712. 20 indexed citations
18.
Callens, Emmanuel, Andrew Burton, & Anthony G. M. Barrett. (2006). Synthesis of amides using the Ritter reaction with bismuth triflate catalysis. Tetrahedron Letters. 47(49). 8699–8701. 78 indexed citations
19.
Callens, Emmanuel, et al.. (2006). First example of an Ugi type reaction on phenylsulfinimine-avermectin B1 derivatives. Tetrahedron Letters. 48(4). 707–709. 8 indexed citations
20.
Callens, Emmanuel, et al.. (2005). Bismuth-Catalyzed Benzylic Oxidations with tert-Butyl Hydroperoxide. Organic Letters. 7(21). 4549–4552. 142 indexed citations

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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2026