Viktor Kettmann

701 total citations
43 papers, 591 citations indexed

About

Viktor Kettmann is a scholar working on Organic Chemistry, Inorganic Chemistry and Pharmacology. According to data from OpenAlex, Viktor Kettmann has authored 43 papers receiving a total of 591 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Organic Chemistry, 16 papers in Inorganic Chemistry and 10 papers in Pharmacology. Recurrent topics in Viktor Kettmann's work include Crystal structures of chemical compounds (14 papers), Synthesis and biological activity (13 papers) and Synthesis and Characterization of Heterocyclic Compounds (8 papers). Viktor Kettmann is often cited by papers focused on Crystal structures of chemical compounds (14 papers), Synthesis and biological activity (13 papers) and Synthesis and Characterization of Heterocyclic Compounds (8 papers). Viktor Kettmann collaborates with scholars based in Slovakia, Czechia and Germany. Viktor Kettmann's co-authors include Daniela Košťálová, Lucia Račková, Marek Obložinský, Lýdia Bezáková, Jaroslav Tóth, Jan Světlík, Hans‐Dieter Höltje, Lívia Slobodníková, J Dřímal and F. Pavelčík and has published in prestigious journals such as Journal of Medicinal Chemistry, Tetrahedron Letters and Phytotherapy Research.

In The Last Decade

Viktor Kettmann

37 papers receiving 548 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Viktor Kettmann Slovakia 10 198 170 153 107 105 43 591
Mohammad Shawkat Ali Bangladesh 16 260 1.3× 221 1.3× 100 0.7× 239 2.2× 197 1.9× 38 786
Zoltán Béni Hungary 15 199 1.0× 214 1.3× 123 0.8× 72 0.7× 68 0.6× 54 614
Guy Lewin France 18 344 1.7× 387 2.3× 173 1.1× 162 1.5× 137 1.3× 47 865
Serge Labidalle France 11 219 1.1× 376 2.2× 108 0.7× 51 0.5× 73 0.7× 36 832
Shabir H. Lone India 17 214 1.1× 256 1.5× 69 0.5× 66 0.6× 94 0.9× 33 585
A Vachálková Slovakia 14 124 0.6× 374 2.2× 96 0.6× 60 0.6× 164 1.6× 52 807
Albert S. C. Chan China 15 227 1.1× 288 1.7× 54 0.4× 52 0.5× 88 0.8× 34 714
Yi-Chen Chia Taiwan 14 191 1.0× 420 2.5× 97 0.6× 96 0.9× 140 1.3× 15 820
Ying-Ming Pan China 17 318 1.6× 282 1.7× 70 0.5× 45 0.4× 94 0.9× 28 659
Saima Rasheed Pakistan 14 365 1.8× 212 1.2× 80 0.5× 56 0.5× 105 1.0× 47 784

Countries citing papers authored by Viktor Kettmann

Since Specialization
Citations

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

Fields of papers citing papers by Viktor Kettmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Viktor Kettmann

This figure shows the co-authorship network connecting the top 25 collaborators of Viktor Kettmann. A scholar is included among the top collaborators of Viktor Kettmann 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 Viktor Kettmann. Viktor Kettmann 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
1.
Kettmann, Viktor & Jan Světlík. (2010). Methyl 5′-(2-hydroxyphenyl)-4′,5′,6′,7′-tetrahydrospiro[2H-1-benzopyran-2,7′-1,2,4-triazolo[1,5-a]pyrimidine]-3-carboxylate. Acta Crystallographica Section E Structure Reports Online. 67(1). o92–o92. 3 indexed citations
2.
Kettmann, Viktor, et al.. (2009). (5R*,11R*)-5-Methyl-1,2-dihydro-5,11-methano-5H,11H-1,3-thiazolo[2,3-d][1,3,5]benzoxadiazocine. Acta Crystallographica Section E Structure Reports Online. 65(11). o2967–o2967. 3 indexed citations
3.
Kettmann, Viktor, et al.. (2008). Ethyl 6-ethoxycarbonylmethyl-4-(2-hydroxyphenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate. Acta Crystallographica Section E Structure Reports Online. 64(6). o1092–o1092. 2 indexed citations
4.
Kettmann, Viktor, et al.. (2007). Ethyl [5-(2-hydroxyphenyl)-3-methyl-4,5-dihydro-1H-pyrazol-1-yl]oxoacetate. Acta Crystallographica Section E Structure Reports Online. 63(5). o2607–o2608. 1 indexed citations
5.
Slobodníková, Lívia, et al.. (2004). Antimicrobial activity of Mahonia aquifolium crude extract and its major isolated alkaloids. Phytotherapy Research. 18(8). 674–676. 77 indexed citations
6.
Kettmann, Viktor, Jan Světlík, & Jiřı́ Kubišta. (2004). N-{(1E)-Amino[3-methyl-5-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl]methylene}-1H-imidazole-1-carboxamide. Acta Crystallographica Section C Crystal Structure Communications. 60(6). o431–o433. 2 indexed citations
7.
Kettmann, Viktor, et al.. (2004). 2-(Phenylaminomethylidene)cyclohexane-1,3-dione. Acta Crystallographica Section C Crystal Structure Communications. 60(4). o252–o254. 1 indexed citations
8.
Kettmann, Viktor, et al.. (2004). 3-Butyl-1-(5-nitrobenzo[c][1,2]thiazol-3-yl)-3-phenyltriazene. Acta Crystallographica Section C Crystal Structure Communications. 60(2). o143–o145. 4 indexed citations
9.
Kettmann, Viktor, Daniela Košťálová, & Hans‐Dieter Höltje. (2004). Human topoisomerase I poisoning: docking protoberberines into a structure-based binding site model. Journal of Computer-Aided Molecular Design. 18(12). 785–796. 40 indexed citations
10.
Košťálová, Daniela, et al.. (2003). Antifungal activity of Mahonia aquifolium extract and its major protoberberine alkaloids. Phytotherapy Research. 17(7). 834–837. 92 indexed citations
11.
Kettmann, Viktor & Jan Světlík. (2003). 4,5-Dihydro-3-methyl-5-(4-methylphenyl)-1H-pyrazole-1-carboxamide. Acta Crystallographica Section C Crystal Structure Communications. 59(8). o419–o421. 2 indexed citations
12.
Čerňáková, M., et al.. (2002). Potential antimutagenic activity of berberine, a constituent of Mahonia aquifolium. BMC Complementary and Alternative Medicine. 2(1). 2–2. 43 indexed citations
13.
Lokaj, Ján, et al.. (2001). Dimethyl 2-{[2-(methoxycarbonyl)-1-(methoxycarbonylmethyl)pyrrol-4-yl]methylene}propanedioate. Acta Crystallographica Section C Crystal Structure Communications. 57(8). 973–974.
14.
Kettmann, Viktor, Jan Světlík, & Christoph Kratky. (2001). 4-Hydroxy-7-methoxy-2-methyl-5H-1-benzopyrano[4,3-b]pyridin-5-one. Acta Crystallographica Section C Crystal Structure Communications. 57(5). 590–592. 1 indexed citations
15.
Lokaj, Ján, et al.. (2001). cis-6-Phenyl-4bH,6H,11H,13H-isoindolo[1,2-c]benz[2,4]oxazepin-13-one. Acta Crystallographica Section C Crystal Structure Communications. 57(6). 735–736. 3 indexed citations
16.
Kettmann, Viktor, Ján Lokaj, P. Šimůnek, & V. Macháček. (2001). 4-(4-Methoxyphenylamino)-3-phenylazo-3-penten-2-one. Acta Crystallographica Section C Crystal Structure Communications. 57(6). 737–739. 6 indexed citations
17.
Kettmann, Viktor & Jan Světlík. (2000). (6R*,16R*)-9,14-Dihydro-6-methyl-6,16-methano-6H,16H-[2,4]benzothiazepino[3,4-d][1,3,5]benzoxadiazocine hydrobromide dimethylformamide hemisolvate. Acta Crystallographica Section C Crystal Structure Communications. 56(9). 1115–1116.
18.
Lokaj, Ján, et al.. (1986). The crystal structure of dibutyl-bis(pentamethylenedithiocarbamato)tin(IV). Collection of Czechoslovak Chemical Communications. 51(11). 2521–2527. 4 indexed citations
19.
Lokaj, Ján, et al.. (1982). The crystal structure of tris(diallyldithiocarbamato) iron(III). Collection of Czechoslovak Chemical Communications. 47(10). 2633–2638. 3 indexed citations
20.
Kettmann, Viktor, et al.. (1978). The crystal structure of nickel(II) cyclopentamethylenedithiocarbamate. Collection of Czechoslovak Chemical Communications. 43(5). 1204–1213. 4 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Mohammad Shawkat Ali Breakdown of academic impact, for papers by Zoltán Béni Breakdown of academic impact, for papers by Guy Lewin Breakdown of academic impact, for papers by Serge Labidalle Breakdown of academic impact, for papers by Shabir H. Lone Breakdown of academic impact, for papers by A Vachálková Breakdown of academic impact, for papers by Albert S. C. Chan Breakdown of academic impact, for papers by Yi-Chen Chia Breakdown of academic impact, for papers by Ying-Ming Pan Breakdown of academic impact, for papers by Saima Rasheed
Rankless by CCL
2026