H. Ripperger

902 total citations
55 papers, 680 citations indexed

About

H. Ripperger is a scholar working on Molecular Biology, Organic Chemistry and Spectroscopy. According to data from OpenAlex, H. Ripperger has authored 55 papers receiving a total of 680 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Molecular Biology, 15 papers in Organic Chemistry and 14 papers in Spectroscopy. Recurrent topics in H. Ripperger's work include Phytochemical Studies and Bioactivities (15 papers), Molecular spectroscopy and chirality (13 papers) and Steroid Chemistry and Biochemistry (9 papers). H. Ripperger is often cited by papers focused on Phytochemical Studies and Bioactivities (15 papers), Molecular spectroscopy and chirality (13 papers) and Steroid Chemistry and Biochemistry (9 papers). H. Ripperger collaborates with scholars based in Germany, South Korea and Vietnam. H. Ripperger's co-authors include K. Schreiber, Günther Snatzke, E. Höhne, R. Radeglia, G. Adam, H. Budzikiewicz, A. Preiß, Jürgen Faust, Karin Seifert and H. Pracejus and has published in prestigious journals such as Cellular and Molecular Life Sciences, Tetrahedron and Phytochemistry.

In The Last Decade

H. Ripperger

53 papers receiving 539 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. Ripperger Germany 15 289 203 172 142 102 55 680
Felipe Balza Canada 14 205 0.7× 184 0.9× 138 0.8× 71 0.5× 63 0.6× 26 509
F. Gautschi Switzerland 13 260 0.9× 64 0.3× 257 1.5× 103 0.7× 79 0.8× 16 707
Walter Thommen Switzerland 16 200 0.7× 72 0.4× 379 2.2× 64 0.5× 74 0.7× 30 644
Lindsay H. Briggs New Zealand 18 384 1.3× 244 1.2× 199 1.2× 53 0.4× 65 0.6× 66 835
T. J. Batterham Australia 15 286 1.0× 157 0.8× 282 1.6× 97 0.7× 22 0.2× 37 786
Kaoru Kuriyama Japan 15 280 1.0× 117 0.6× 272 1.6× 114 0.8× 22 0.2× 59 708
L. Crombie United Kingdom 17 264 0.9× 166 0.8× 208 1.2× 54 0.4× 29 0.3× 52 610
A. J. Lemin United States 13 309 1.1× 129 0.6× 223 1.3× 49 0.3× 74 0.7× 25 629
Ferdinand Näf Switzerland 17 282 1.0× 85 0.4× 489 2.8× 53 0.4× 54 0.5× 28 812
E. Dı́az Mexico 15 318 1.1× 105 0.5× 282 1.6× 56 0.4× 33 0.3× 84 646

Countries citing papers authored by H. Ripperger

Since Specialization
Citations

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

Fields of papers citing papers by H. Ripperger

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H. Ripperger

This figure shows the co-authorship network connecting the top 25 collaborators of H. Ripperger. A scholar is included among the top collaborators of H. Ripperger 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 H. Ripperger. H. Ripperger 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.
Ripperger, H., et al.. (1998). Constituents of artocarpus tonkinensis. Pharmazie. 53(5). 4 indexed citations
2.
Porzel, Andrea, et al.. (1998). Photochemistry of Artemisinin Derivatives. Natural product letters. 12(2). 151–159. 2 indexed citations
3.
Ripperger, H., et al.. (1996). Resorcinol Derivatives from TwoArdisiaSpecies. Planta Medica. 62(5). 479–480. 8 indexed citations
4.
Sung, Trần Văn, et al.. (1994). Sterol Glucosides fromEleucine indica. Planta Medica. 60(5). 498–498. 6 indexed citations
5.
Ripperger, H., K. Schreiber, & Jürgen Faust. (1984). Der „Nornialisierungsfaktor” für die Toinatenmutante chloronerva. XV. Peptidanaloga des Phytosiderophors Nicotianamin. Journal für praktische Chemie. 326(2). 266–272. 3 indexed citations
6.
Faust, Jürgen, A. Preiß, K. Schreiber, & H. Ripperger. (1983). On the “normalizing factor” for the tomato mutant chloronerva—XIV. Tetrahedron. 39(9). 1593–1596. 19 indexed citations
7.
Schreiber, K., et al.. (1983). Metal complex formation by nicotianamine, a possible phytosiderophore. Cellular and Molecular Life Sciences. 39(3). 261–262. 120 indexed citations
8.
Buděšı́nský, Miloš, Ž. Procházka, H. Budzikiewicz, et al.. (1981). On the “normalizing factor” for the tomato mutant “chloronerva”—XI. Tetrahedron. 37(1). 191–196. 17 indexed citations
9.
Ripperger, H.. (1978). Isolierung von Stigmast-4-en-3.6-dion aus Hamelia patens und Clitoria ternatea.. Pharmazie. 33(1). 82–83. 8 indexed citations
10.
Ripperger, H.. (1978). [Isolation of stigmast-4-ene-3,6-dione from Hamelia patens and Clitoria ternatea].. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 33(1). 82–3. 6 indexed citations
11.
Ripperger, H. & Karin Seifert. (1975). Die cucurbitacine von Citrullus lanatus var. citroides. Tetrahedron. 31(13-14). 1561–1563. 9 indexed citations
12.
Höhne, E., et al.. (1973). Solanum-alkaloide—Cl. Tetrahedron. 29(19). 3065–3069. 1 indexed citations
13.
Ripperger, H., et al.. (1972). Solanum-alkaloide—SCVI. Tetrahedron. 28(6). 1619–1627. 8 indexed citations
14.
Ripperger, H. & K. Schreiber. (1971). Untersuchungen zur optischen Rotationsdispersion und zum Circulardichroismus. XVI. N‐Chlor‐ und N‐Nitrosamine. Journal für praktische Chemie. 313(5). 825–838. 10 indexed citations
15.
Höhne, E., H. Ripperger, & K. Schreiber. (1970). Solatium alkaloids. XC. X-Ray analysis of N-[2-bromo-benzylidene]-solanocapsine.. Tetrahedron. 26. 8 indexed citations
16.
Ripperger, H., K. Schreiber, & H. Budzikiewicz. (1970). Putrescin‐Amide aus Kniphofia‐Arten. Journal für praktische Chemie. 312(3). 449–455. 7 indexed citations
17.
Höhne, E., H. Ripperger, & K. Schreiber. (1970). Solanum-alkaloide—XC. Tetrahedron. 26(14). 3569–3577. 14 indexed citations
18.
Ripperger, H., K. Schreiber, Günther Snatzke, & Kurt Ponsold. (1969). Untersuchungen zur optischen rotationsdispersion und zum • circulardichroismus—XIII. Tetrahedron. 25(4). 827–836. 13 indexed citations
19.
Ripperger, H., et al.. (1965). Konfigurationszuordnung bei 3‐Amino‐Steroiden. Zeitschrift für Chemie. 5(2). 62–62. 14 indexed citations
20.

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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