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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 44 16736 15111 4150 3409 97 8305

Roger C. Helgeson publications per year

The chart shows the history of publications by Roger C. Helgeson between 1966 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Roger C. Helgeson published across 56 years, from 1966 to 2021, averaging 1.8 papers a year. Output peaked at 7 publications in 1988. 1 of the 100 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1966 to 2021. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 1988. 1966: 3 publications 1967: 0 publications 1968: 1 publication 1969: 0 publications 1970: 3 publications 1971: 1 publication 1972: 0 publications 1973: 4 publications 1974: 3 publications 1975: 5 publications 1976: 1 publication 1977: 3 publications 1978: 5 publications 1979: 6 publications 1980: 2 publications 1981: 5 publications 1982: 0 publications 1983: 1 publication 1984: 0 publications 1985: 3 publications 1986: 3 publications 1987: 0 publications 1988: 7 publications 1989: 4 publications 1990: 2 publications 1991: 1 publication 1992: 0 publications 1993: 1 publication 1994: 1 publication 1995: 2 publications 1996: 2 publications 1997: 1 publication 1998: 3 publications 1999: 3 publications 2000: 5 publications 2001: 3 publications 2002: 4 publications 2003: 3 publications 2004: 0 publications 2005: 1 publication 2006: 1 publication 2007: 1 publication 2008: 0 publications 2009: 0 publications 2010: 1 publication 2011: 0 publications 2012: 1 publication 2013: 1 publication 2014: 1 publication 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 1 publication 2019: 0 publications 2020: 0 publications 2021: 1 publication
1966 2021

100 publications in total across all disciplines

View publications per year as a table
Roger C. Helgeson: publications per year, 1966 to 2021
Year Publications
1966 3
1967 0
1968 1
1969 0
1970 3
1971 1
1972 0
1973 4
1974 3
1975 5
1976 1
1977 3
1978 5
1979 6
1980 2
1981 5
1982 0
1983 1
1984 0
1985 3
1986 3
1987 0
1988 7
1989 4
1990 2
1991 1
1992 0
1993 1
1994 1
1995 2
1996 2
1997 1
1998 3
1999 3
2000 5
2001 3
2002 4
2003 3
2004 0
2005 1
2006 1
2007 1
2008 0
2009 0
2010 1
2011 0
2012 1
2013 1
2014 1
2015 0
2016 0
2017 0
2018 1
2019 0
2020 0
2021 1
Total 100
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Roger C. Helgeson 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 Roger C. Helgeson sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 81–100 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 97 publications — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302 97
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Roger C. Helgeson 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 Roger C. Helgeson sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 44–45 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 44 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808 44
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Roger C. Helgeson is affiliated with the University of California, Los Angeles in the United States. Their research primarily focuses on Materials Science, with a specialization in Materials Chemistry. Additional areas of study include Molecular Biology and Pharmacology.

The scientist's work covers several key topics, including:

  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Chemical Synthesis and Analysis
  • Microbial Natural Products and Biosynthesis
  • Enzyme Catalysis and Immobilization

Roger C. Helgeson has published research in venues such as:

  • The Cambridge Structural Database
  • Nature Chemistry

Recent publications include:

  • "Efficient Lewis acid catalysis of an abiological reaction in a de novo protein scaffold," 2021, Nature Chemistry
  • "CCDC 1972198: Experimental Crystal Structure Determination," 2021, The Cambridge Structural Database
  • "CCDC 1972193: Experimental Crystal Structure Determination," 2021, The Cambridge Structural Database
  • "CCDC 1972197: Experimental Crystal Structure Determination," 2021, The Cambridge Structural Database

The scientist collaborates frequently with other researchers, including:

  • Sophie Basler
  • Sabine Studer
  • Yike Zou
  • Yusuke Ota
  • Anna Camus

Best Publications

  • Highly sensitive biological and chemical sensors based on reversible fluorescence quenching in a conjugated polymer

    Liaohai Chen;Duncan W. McBranch;Hsing Lin Wang;Roger Helgeson

  • Host-guest complexation. 48. Octol building blocks for cavitands and carcerands

    Linda M. Tunstad;John A. Tucker;Enrico Dalcanale;Jurgen Weiser

  • Host-guest complexation. 1. Concept and illustration

    Evan P. Kyba;Roger C. Helgeson;Khorshed Madan;George W. Gokel

  • Host-guest complexation. 46. Cavitands as open molecular vessels form solvates

    Donald J. Cram;Stefan. Karbach;Hye Eun. Kim;Carolyn B. Knobler

  • Host-guest complexation. 20. Chiral recognition in transport as a molecular basis for a catalytic resolving machine

    Martin Newcomb;John L. Toner;Roger C. Helgeson;Donald J. Cram

  • Tetramethylpentacene: Remarkable Absence of Steric Effect on Field Effect Mobility

    Hong Meng;Michael Bendikov;Gregory Mitchell;Roger Helgeson

  • Host-guest complexation. 8. Macrocyclic polyethers shaped by two rigid substituted dinaphthyl or ditetralyl units

    Donald J. Cram;Roger C. Helgeson;Stephen C. Peacock;Lester J. Kaplan

  • Host-guest complexation. 35. Spherands, the first completely preorganized ligand systems

    Donald J. Cram;Takahiro Kaneda;Roger C. Helgeson;S. Bruce Brown

  • Dual-color polymer light-emitting pixels processed by hybrid inkjet printing

    Shun-Chi Chang;Jayesh Bharathan;Yang Yang;Roger Helgeson

  • Spherands-ligands whose binding of cations relieves enforced electron-electron repulsions

    Donald J. Cram;Takahiro Kaneda;Roger C. Helgeson;George M. Lein

  • An Unusual Electrochromic Device Based on a New Low‐Bandgap Conjugated Polymer

    Hong Meng;Derald Tucker;Sterling Chaffins;Yongsheng Chen

  • Computational design of catalytic dyads and oxyanion holes for ester hydrolysis.

    Florian Richter;Rebecca Blomberg;Sagar D. Khare;Gert Kiss

  • Host-guest complexation. 23. High chiral recognition of amino acid and ester guests by hosts containing one chiral element

    Unknown

  • Building highly sensitive dye assemblies for biosensing from molecular building blocks.

    Robert M. Jones;Liangde Lu;Roger Helgeson;Troy S. Bergstedt

  • Chiral recognition in complexation of guests by designed host molecules

    D. J. Cram;R. C. Helgeson;L. R. Sousa;J. M. Timko

  • Host-guest complexation. 13. High chiral recognition of amino esters by dilocular hosts containing extended steric barriers

    Stephen C. Peacock;Linda A. Domeier;Fred C. A. Gaeta;Roger C. Helgeson

  • HOST‐GUEST COMPLEXATION. 22. RECIPROCAL CHIRAL RECOGNITION BETWEEN AMINO ACIDS AND DILOCULAR SYSTEMS

    Stephen S. Peacock;David M. Walba;Fred C. A. Gaeta;Roger C. Helgeson

  • Superquenching in cyanine pendant poly(L-lysine) dyes: dependence on molecular weight, solvent, and aggregation.

    Liangde Lu;Roger Helgeson;Robert M. Jones;Duncan Mcbranch

  • Host-guest complexation. 6. The [2.2]paracyclophanyl structural unit in host compounds

    Roger C. Helgeson;Thomas L. Tarnowski;Joseph M. Timko;Donald J. Cram

  • Complete optical resolution by differential complexation in solution between a chiral cyclic polyether and an .alpha.-amino acid

    Roger C. Helgeson;Kenji. Koga;Joseph M. Timko;Donald J. Cram

  • Letter: Enantiomer differentiation in transport through bulk liquid membranes.

    Martin Newcomb;Roger C. Helgeson;Donald J. Cram

  • Dual-color polymer light-emitting pixels processed by hybrid inkjet printing

    Shun-Chi Chang;Jayesh Bharathan;Roger Helgeson;Fred Wudl

Frequent Co-Authors

Donald J. Cram
Donald J. Cram University of California, Los Angeles
Carolyn B. Knobler
Carolyn B. Knobler University of California, Los Angeles
Fred Wudl
Fred Wudl University of California, Santa Barbara
Kendall N. Houk
Kendall N. Houk University of California, Los Angeles
Martin Newcomb
Martin Newcomb University of Illinois at Chicago
Kenji Koga
Kenji Koga Nara Institute of Science and Technology
George W. Gokel
George W. Gokel University of Missouri–St. Louis
David G. Whitten
David G. Whitten University of New Mexico
James M. Mayer
James M. Mayer Yale University
Hsing-Lin Wang
Hsing-Lin Wang Southern University of Science and Technology

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