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Roberto Improta

D-Index & Metrics

Chemistry

D-Index
61
Citations
13894
World Ranking
9205
National Ranking
261

Roberto Improta 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 Roberto Improta 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: 226 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

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

Roberto Improta 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 Roberto Improta 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

Roberto Improta is affiliated with the University of Naples Federico II in Italy. Their research spans the fields of Biochemistry, Genetics and Molecular Biology, Chemistry, and Physics and Astronomy. The subfields of study associated with their work include Molecular Biology, Atomic and Molecular Physics and Optics, Physical and Theoretical Chemistry, Electrical and Electronic Engineering, and Spectroscopy.

The research topics Roberto Improta focuses on encompass DNA and Nucleic Acid Chemistry, Photochemistry and Electron Transfer Studies, Spectroscopy and Quantum Chemical Studies, Advanced Biosensing and Bioanalysis Techniques, Molecular Junctions and Nanostructures, Advanced Chemical Physics Studies, and Photoreceptor and Optogenetics Research.

Roberto Improta has published extensively in several scientific journals. Frequent publication venues include Physical Chemistry Chemical Physics, Chemistry - A European Journal, Molecules, Journal of Chemical Theory and Computation, and The Journal of Physical Chemistry Letters.

Their recent papers include:

  • Ultrafast Dynamics of the Two Lowest Bright Excited States of Cytosine and 1-Methylcytosine: A Quantum Dynamical Study (2020), Journal of Chemical Theory and Computation
  • Nucleic Acids as a Playground for the Computational Study of the Photophysics and Photochemistry of Multichromophore Assemblies (2022), Accounts of Chemical Research
  • What Makes Thienoguanosine an Outstanding Fluorescent DNA Probe? (2020), Journal of the American Chemical Society
  • Quantum and semiclassical dynamical studies of nonadiabatic processes in solution: achievements and perspectives (2021), Physical Chemistry Chemical Physics
  • Nonadiabatic Absorption Spectra and Ultrafast Dynamics of DNA and RNA Photoexcited Nucleobases (2021), Molecules

Notable frequent collaborators include Lara Martínez-Fernández, Fabrizio Santoro, James A. Green, Luciana Esposito, and Haritha Asha.

Best Publications

  • A state-specific polarizable continuum model time dependent density functional theory method for excited state calculations in solution.

    Roberto Improta;Vincenzo Barone;Giovanni Scalmani;Michael J. Frisch

  • Effective method for the computation of optical spectra of large molecules at finite temperature including the Duschinsky and Herzberg–Teller effect: The Qx band of porphyrin as a case study

    Fabrizio Santoro;Alessandro Lami;Roberto Improta;Julien Bloino

  • Effective method to compute Franck-Condon integrals for optical spectra of large molecules in solution.

    Fabrizio Santoro;Roberto Improta;Alessandro Lami;Julien Bloino

  • Toward effective and reliable fluorescence energies in solution by a new state specific polarizable continuum model time dependent density functional theory approach

    Roberto Improta;Giovanni Scalmani;Michael J. Frisch;Vincenzo Barone

  • Quantum Mechanical Studies on the Photophysics and the Photochemistry of Nucleic Acids and Nucleobases

    Roberto Improta;Fabrizio Santoro;Lluís Blancafort

  • Singlet Excited-State Behavior of Uracil and Thymine in Aqueous Solution: A Combined Experimental and Computational Study of 11 Uracil Derivatives

    Thomas Gustavsson;Akos Bányász;Elodie Lazzarotto;Dimitra Markovitsi

  • Effective method to compute vibrationally resolved optical spectra of large molecules at finite temperature in the gas phase and in solution

    Fabrizio Santoro;Alessandro Lami;Roberto Improta;Vincenzo Barone

  • Interplay of electronic, environmental, and vibrational effects in determining the hyperfine coupling constants of organic free radicals.

    Roberto Improta;Vincenzo Barone

  • Insights for an Accurate Comparison of Computational Data to Experimental Absorption and Emission Spectra: Beyond the Vertical Transition Approximation.

    Francisco J. Avila Ferrer;Javier Cerezo;Emiliano Stendardo;Roberto Improta

  • Absorption and fluorescence spectra of uracil in the gas phase and in aqueous solution: a TD-DFT quantum mechanical study.

    Roberto Improta;Vincenzo Barone

  • DNA/RNA: Building Blocks of Life Under UV Irradiation

    Thomas Gustavsson;Roberto Improta;Dimitra Markovitsi

  • Absolute pKa determination for carboxylic acids using density functional theory and the polarizable continuum model

    Gloria A.A. Saracino;Roberto Improta;Vincenzo Barone

  • Ab initio calculations of absorption spectra of large molecules in solution: coumarin C153.

    Roberto Improta;Vincenzo Barone;Fabrizio Santoro

  • Quantum mechanical computations and spectroscopy: From small rigid molecules in the gas phase to large flexible molecules in solution

    Vincenzo Barone;Roberto Improta;Nadia Rega

  • Understanding the Role of Stereoelectronic Effects in Determining Collagen Stability. 1. A Quantum Mechanical Study of Proline, Hydroxyproline, and Fluoroproline Dipeptide Analogues in Aqueous Solution

    Roberto Improta;Caterina Benzi;Vincenzo Barone

  • Structure and Conformational Behavior of Biopolymers by Density Functional Calculations Employing Periodic Boundary Conditions. I. The Case of Polyglycine, Polyalanine, and Poly-α-aminoisobutyric Acid in Vacuo

    Roberto Improta;Vincenzo Barone;and Konstantin N. Kudin;Gustavo E. Scuseria

  • Solvent effect on the singlet excited-state lifetimes of nucleic acid bases: A computational study of 5-fluorouracil and uracil in acetonitrile and water.

    Fabrizio Santoro;Vincenzo Barone;Thomas Gustavsson;Roberto Improta

  • Electronic excited states responsible for dimer formation upon UV absorption directly by thymine strands: joint experimental and theoretical study.

    Akos Banyasz;Thierry Douki;Roberto Improta;Thomas Gustavsson

  • UV-Induced Proton Transfer between DNA Strands

    Yuyuan Zhang;Kimberly de La Harpe;Ashley A. Beckstead;Roberto Improta

  • 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

  • Influence of base stacking on excited-state behavior of polyadenine in water, based on time-dependent density functional calculations

    F. Santoro;Vincenzo Barone;R. Improta

Frequent Co-Authors

Vincenzo Barone
Vincenzo Barone Scuola Normale Superiore di Pisa
Fabrizio Santoro
Fabrizio Santoro National Research Council (CNR)
Dimitra Markovitsi
Dimitra Markovitsi University of Paris-Saclay
Thomas Gustavsson
Thomas Gustavsson University of Paris-Saclay
Bern Kohler
Bern Kohler The Ohio State University
Luigi Vitagliano
Luigi Vitagliano University of Naples Federico II
Giovanni Scalmani
Giovanni Scalmani Gaussian Inc.
Nilmoni Sarkar
Nilmoni Sarkar Indian Institute of Technology Kharagpur
Yves Mély
Yves Mély University of Strasbourg
John R. Helliwell
John R. Helliwell University of Manchester

External Links

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