World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
61
Citations
10449
World Ranking
9461
National Ranking
682

Karl Kleinermanns publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Karl Kleinermanns sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 194 publications — 30th percentile

30% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Karl Kleinermanns D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Karl Kleinermanns sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 61 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Karl Kleinermanns is affiliated with Heinrich Heine University Düsseldorf in Germany. Their research primarily spans the fields of Biochemistry, Genetics and Molecular Biology, as well as Physics and Astronomy. Within these fields, their work focuses on specific subfields including Molecular Biology, Astronomy and Astrophysics, Cellular and Molecular Neuroscience, Environmental Chemistry, and Pharmaceutical Science.

The scientist's research covers a range of topics, with notable emphasis on Origins and Evolution of Life, Photosynthetic Processes and Mechanisms, Photoreceptor and Optogenetics Research, Mitochondrial Function and Pathology, Methane Hydrates and Related Phenomena, Protein Structure and Dynamics, and Chemical Reactions and Isotopes.

Kleinermanns has published frequently in venues such as Frontiers in Microbiology, Goldschmidt2021 abstracts, Nature Ecology & Evolution, FEBS Letters, and FEBS Journal.

Recent papers include:

  • A hydrogen-dependent geochemical analogue of primordial carbon and energy metabolism (2020, Nature Ecology & Evolution)
  • The ambivalent role of water at the origins of life (2020, FEBS Letters)
  • Energy at Origins: Favorable Thermodynamics of Biosynthetic Reactions in the Last Universal Common Ancestor (LUCA) (2021, Frontiers in Microbiology)
  • Role of geochemical protoenzymes (geozymes) in primordial metabolism: specific abiotic hydride transfer by metals to the biological redox cofactor NAD + (2021, FEBS Journal)
  • The Autotrophic Core: An Ancient Network of 404 Reactions Converts H2, CO2, and NH3 into Amino Acids, Bases, and Cofactors (2021, Microorganisms)

Frequent co-authors collaborating with Kleinermanns include William Martin, Martina Preiner, Andrey do Nascimento Vieira, Harun Tüysüz, and Delfina P. Henriques Pereira. These collaborations reflect a multidisciplinary approach intersecting chemistry, biology, and geosciences.

Best Publications

  • Pairing of isolated nucleic-acid bases in the absence of the DNA backbone

    Eyal Nir;Karl Kleinermanns;Mattanjah S. de Vries;Mattanjah S. de Vries

  • HIGH RESOLUTION UV SPECTROSCOPY OF PHENOL AND THE HYDROGEN BONDED PHENOL/WATER CLUSTER

    Giel Berden;W. Leo Meerts;Michael Schmitt;Karl Kleinermanns

  • A nomenclature for Λ‐doublet levels in rotating linear molecules

    M. H. Alexander;P. Andresen;R. Bacis;R. Bersohn

  • A hydrogen-dependent geochemical analogue of primordial carbon and energy metabolism

    Martina Preiner;Kensuke Igarashi;Kamila B. Muchowska;Mingquan Yu

  • Properties of isolated DNA bases, base pairs and nucleosides examined by laser spectroscopy

    E. Nir;Ch. Plützer;K. Kleinermanns;M. de Vries

  • On the Photochemistry of Purine Nucleobases

    Eyal Nir;Karl Kleinermanns;Louis Grace;Mattanjah S. de Vries

  • Excited state dynamics of DNA bases

    Karl Kleinermanns;Dana Nachtigallová;Mattanjah S. de Vries

  • Tautomers and electronic states of jet-cooled adenine investigated by double resonance spectroscopy

    Chr. Plützer;K. Kleinermanns

  • Characterization of laser-ablated and chemically reduced silver colloids in aqueous solution by UV/VIS spectroscopy and STM/SEM microscopy

    R. Brause;H. Möltgen;K. Kleinermanns

  • Guanine tautomerism revealed by UV–UV and IR–UV hole burning spectroscopy

    Unknown

  • Pairing of the nucleobase guanine studied by IR–UV double-resonance spectroscopy and ab initio calculations

    Eyal Nir;Christoph Janzen;Petra Imhof;Karl Kleinermanns

  • Pairing of the nucleobases guanine and cytosine in the gas phase studied by IR–UV double-resonance spectroscopy and ab initio calculations

    E. Nir;Ch. Janzen;P. Imhof;K. Kleinermanns

  • IR–UV double-resonance spectroscopy of the nucleobase adenine

    Chr. Plützer;E. Nir;M. S. de Vries;K. Kleinermanns

  • Conformers of the peptides glycine-tryptophan, tryptophan-glycine and tryptophan-glycine-glycine as revealed by double resonance laser spectroscopy

    I. Hünig;K. Kleinermanns

  • Photoinduced Dynamics of Guanosine Monophosphate in Water from Broad-Band Transient Absorption Spectroscopy and Quantum-Chemical Calculations

    Venugopal Karunakaran;K. Kleinermanns;R. Improta;S. A. Kovalenko

  • Structure and vibrations of phenol(H2O)2

    M. Gerhards;K. Kleinermanns

  • Pairing of Isolated Nucleobases: Double Resonance Laser Spectroscopy of Adenine–Thymine

    Christian Plützer;Isabel Hünig;Karl Kleinermanns;Eyal Nir

  • Gas-phase FT-IR-spectra of natural amino acids

    Rolf Linder;Michael Nispel;Thomas Häber;Karl Kleinermanns

  • The structure of phenol(H2O) obtained by microwave spectroscopy

    Markus Gerhards;Michael Schmitt;Karl Kleinermanns;Wolfgang Stahl

  • The nucleobase cytosine and the cytosine dimer investigated by double resonance laser spectroscopy and ab initio calculations

    E. Nir;I. Hünig;K. Kleinermanns;M. S. de Vries

  • Phenothiazinyl rhodanylidene merocyanines for dye-sensitized solar cells.

    Tim Meyer;Daniel Ogermann;Andrea Pankrath;Karl Kleinermanns

  • Structure and vibrations of phenol(H2O)7,8 studied by infrared-ultraviolet and ultraviolet-ultraviolet double-resonance spectroscopy and ab initio theory

    Unknown

Frequent Co-Authors

Jürgen Wolfrum
Jürgen Wolfrum Heidelberg University
Mattanjah S. de Vries
Mattanjah S. de Vries University of California, Santa Barbara
William Martin
William Martin Heinrich Heine University Düsseldorf
W. Leo Meerts
W. Leo Meerts Radboud University
Christof Schulz
Christof Schulz University of Duisburg-Essen
Siegfried Hess
Siegfried Hess Technical University of Berlin
Harald Tschesche
Harald Tschesche Bielefeld University
Sergey A. Kovalenko
Sergey A. Kovalenko Humboldt-Universität zu Berlin
Peter Fischer
Peter Fischer Lawrence Berkeley National Laboratory
Martin Kröger
Martin Kröger ETH Zurich

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