Sybolt Harkema

6.6k citations

184 papers · 5.4k indexed · h-index 40

Spectroscopy top 0.2%
- Molecular Sensors and Ion Detection 42
Organic Chemistry top 0.5%
- Supramolecular Chemistry and Complexes 27
- Organic Chemistry Cycloaddition Reactions 19
- Chemical Reaction Mechanisms 14
Physical and Theoretical Chemistry top 0.5%
- Crystallography and molecular interactions 16
Inorganic Chemistry top 1%
Bioengineering top 1%
Materials Chemistry
- Lanthanide and Transition Metal Complexes 20
- Porphyrin and Phthalocyanine Chemistry 13
Oncology
- Metal complexes synthesis and properties 13

Co-authors: David N. Reinhoudt Willem Verboom G. J. VAN HUMMEL J. VAN EERDEN Rocco Ungaro D. Feil Franco Ugozzoli Eleonora Ghidini
Cited by: Spectroscopy Organic Chemistry Physical and Theoretical Chemistry
Journals: Journal of the American Chemical Society (22 papers)Physical Review Letters (2 papers)Angewandte Chemie International Edition (1 paper)
Partner nations: Netherlands United States France

In The Last Decade

Sybolt Harkema

176 papers receiving 5.0k citations

Peers

Countries citing papers authored by Sybolt Harkema

Since Specialization

Citations

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

Fields of papers citing papers by Sybolt Harkema

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Sybolt Harkema, 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 Sybolt Harkema Line = papers co-authored together Sybolt Harkema links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Initial Structure and Growth Dynamics ofYBa2Cu3O7−δduring Pulsed Laser Deposition Physical Review Letters ·Vedran Vonk,K. Driessen,Mark Huijben,Guus Rijnders,Dave H. A. Blank,Horst Rogalla,Sybolt Harkema,H. Graafsma	2007	5
2	Admixtures tod-Wave Gap Symmetry in UntwinnedYBa2Cu3O7Superconducting Films Measured by Angle-Resolved Electron Tunneling Physical Review Letters ·H.J.H. Smilde,A. A. Golubov,Ariando Ariando,Guus Rijnders,Jan M. Dekkers,Sybolt Harkema,Dave H. A. Blank,Horst Rogalla,H. Hilgenkamp	2005	66
3	Bis[N,N′-bis(diphenylmethylene)ethylenediamine-κ²N,N′]copper(I) dichlorocuprate(I) Acta Crystallographica Section C Crystal Structure Communications ·Valiollah Mirkhani,Sybolt Harkema,Reza Kia	2004	6
4	Intramolecular hydrogen bonding and tautomerism in 1-[(2-hydroxyphenylamino)methylene]-2-(1H)-5-phenylazosalicylalenone Acta Crystallographica Section A Foundations of Crystallography ·Reza Kia,Ahmad R. Esmaeilbeig,Sybolt Harkema	2004	4
5	Strain-induced structural changes in thin YBa2Cu3O7−x films on SrTiO3 substrates Thin Solid Films ·Vedran Vonk,S. J. van Reeuwijk,Jan M. Dekkers,Sybolt Harkema,Augustinus J.H.M. Rijnders,H. Graafsma	2003	9
6	Structural changes of segmented copolyetheresteramides with uniform aramid units induced by melting and deformation Polymer ·M.C.E.J. Niesten,Sybolt Harkema,Emile van der Heide,R.J. Gaymans	2001	49
7	High Hyperpolarizabilities of Donor-π-Acceptor-Functionalized Calix[4]arene Derivatives by Pre-organization of Chromophores European Journal of Organic Chemistry ·Paul J. A. Kenis,Esther G. Kerver,Bianca H. M. Snellink‐Ruël,G. J. VAN HUMMEL,Sybolt Harkema,Marinus C. Flipse,R. H. Woudenberg,Johan F. J. Engbersen,David N. Reinhoudt	1998	30
8	Clathration of properly functionalized calix[4]arenes: C-13 CP-MAS NMR spectroscopy and X-ray crystallography Gazzetta chimica italiana ·Willem Verboom,Oliver Struck,David N. Reinhoudt,John van Duynhoven,G. J. VAN HUMMEL,Sybolt Harkema,Konstatin A. Udachin,John A. Ripmeester	1997	8
9	Cavity effect of calix[4]arenes in electrophilic aromatic substitution reactions Oliver Struck,van John P.M. Duynhoven,Willem Verboom,Sybolt Harkema,David N. Reinhoudt	1996	1
10	Synthesis of Uranyl Salophene Metallo-Macrocycles with Additional Functional Groups Synthesis ·Arie R. Van Doorn,Willem Verboom,Sybolt Harkema,David N. Reinhoudt	1992	10
11	The 1,2-alternate conformation of calix[4]arenes: a rare conformation? Dynamic 1H NMR studies of flexible tetraalkylated calix[4]arenes Journal of the American Chemical Society ·Leo C. Groenen,J.‐D. VAN LOON,Willem Verboom,Sybolt Harkema,Alessandro Casnati,Rocco Ungaro,Andrea Pochini,Franco Ugozzoli,David N. Reinhoudt	1991	159
12	Intraannular functionalization of macrocyclic polyethers via organolithium chemistry; x-ray structure of 2-sulfinyl-1,3-xylyl-15-crown-4 Tetrahedron Letters ·M. SKOWRONSKA‐PTASINSKA,Pieter Telleman,Veronika M. L. J. Aarts,Peter D. J. Grootenhuis,J. VAN EERDEN,Sybolt Harkema,David N. Reinhoudt	1987	12
13	Complexes of macrocyclic polyethers and neutral guest molecules: a systematic approach to the complexation of water molecules by 2,6-pyridinium crown ethers Journal of the American Chemical Society ·Peter D. J. Grootenhuis,J.W.H.M. Uiterwijk,David N. Reinhoudt,C. J. VAN STAVEREN,Ernst J. R. Sudhölter,Martinus Bos,J. VAN EERDEN,Wim T. Klooster,Laminus Kruise,Sybolt Harkema	1986	52
14	Macrocyclic receptor molecules for guanidinium cations. Preparation, x-ray structures, and kinetic stabilities of 1:1 complexes of guanidinium perchlorate with benzo-27-crown-9, dibenzo-27-crown-9, and dibenzo-30-crown-10 The Journal of Organic Chemistry ·J. A. A. De Boer,J.W.H.M. Uiterwijk,J. Geevers,Sybolt Harkema,David N. Reinhoudt	1983	27
15	Chemistry of four-membered cyclic nitrones. 3. Reaction with nucleophilic reagents and stereospecific conversion into 1-hydroxyazetidines The Journal of Organic Chemistry ·M. L. M. PENNINGS,David N. Reinhoudt,Sybolt Harkema,G. J. VAN HUMMEL	1982	15
16	Reduction of the nitro group vs. insertion in the carbon-oxygen bond of 3-nitrobenzofuran by ynamines. Synthesis and x-ray crystal structure determination of a 1-benzoxepin and a quinoline 1-oxide The Journal of Organic Chemistry ·A. D. DE WIT,W. P. TROMPENAARS,M. L. M. PENNINGS,David N. Reinhoudt,Sybolt Harkema,G. J. VAN HUMMEL	1981	7
17	A computer-controlled slit unit for the PW1100 diffractometer Journal of Applied Crystallography ·Sybolt Harkema,G. J. VAN HUMMEL	1980	1
18	The crystal structure and thermal expansion of two modifications of N-methylurea–oxalic acid (2:1) Acta Crystallographica Section B ·Sybolt Harkema,J.H.M. Ter Brake,H. J. G. Meutstege	1979	9
19	Reactions of nitroalkenes with ynamines; synthesis of stable four-membered cyclic nitrones and X-ray crystal structure of 2-(NN-diethylcarbamoyl)-2,4-dimethyl-3-phenyl-2,3-dihydroazete 1-oxide Journal of the Chemical Society Chemical Communications ·Andr� D. de Wit,M. L. M. PENNINGS,W. P. TROMPENAARS,David N. Reinhoudt,Sybolt Harkema,Oddbj�rn Nevestveit	1979	17
20	Semi-empirical calculations on the structure of the uronium ion Journal of Molecular Structure ·Sybolt Harkema,D. Feil	1972	2

About Sybolt Harkema

Sybolt Harkema is a scholar working on Organic Chemistry, Spectroscopy and Physical and Theoretical Chemistry, having authored 184 papers that have together received 5.4k indexed citations. Recurring topics across this work include Molecular Sensors and Ion Detection (42 papers), Supramolecular Chemistry and Complexes (27 papers), Lanthanide and Transition Metal Complexes (20 papers), Organic Chemistry Cycloaddition Reactions (19 papers), Crystallography and molecular interactions (16 papers), Chemical Reaction Mechanisms (14 papers), Porphyrin and Phthalocyanine Chemistry (13 papers) and Metal complexes synthesis and properties (13 papers). The work is most often cited by research in Spectroscopy (2.2k citations), Organic Chemistry (3.0k citations) and Physical and Theoretical Chemistry (789 citations). Sybolt Harkema has collaborated with scholars based in Netherlands, United States and France. Frequent co-authors include David N. Reinhoudt, Willem Verboom, G. J. VAN HUMMEL, J. VAN EERDEN, Rocco Ungaro, D. Feil, Franco Ugozzoli, Eleonora Ghidini, C. J. VAN STAVEREN and Frank C. J. M. van Veggel. Their work appears in journals such as Journal of the American Chemical Society, Physical Review Letters and Angewandte Chemie International Edition.

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.

Explore authors with similar magnitude of impact