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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 55 11968 10779 3214 2629 177 14952

Charles F. Yocum publications per year

The chart shows the history of publications by Charles F. Yocum between 1955 and 2022, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Charles F. Yocum published across 68 years, from 1955 to 2022, averaging 2.7 papers a year. Output peaked at 14 publications in 1990. 4 of the 181 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1955 to 2022. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1990. 1955: 1 publication 1956: 0 publications 1957: 0 publications 1958: 0 publications 1959: 0 publications 1960: 0 publications 1961: 0 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 2 publications 1969: 1 publication 1970: 1 publication 1971: 0 publications 1972: 1 publication 1973: 2 publications 1974: 0 publications 1975: 1 publication 1976: 3 publications 1977: 4 publications 1978: 1 publication 1979: 3 publications 1980: 7 publications 1981: 8 publications 1982: 1 publication 1983: 3 publications 1984: 6 publications 1985: 7 publications 1986: 10 publications 1987: 4 publications 1988: 2 publications 1989: 8 publications 1990: 14 publications 1991: 3 publications 1992: 3 publications 1993: 4 publications 1994: 6 publications 1995: 5 publications 1996: 11 publications 1997: 4 publications 1998: 8 publications 1999: 5 publications 2000: 0 publications 2001: 2 publications 2002: 3 publications 2003: 2 publications 2004: 2 publications 2005: 6 publications 2006: 2 publications 2007: 2 publications 2008: 6 publications 2009: 1 publication 2010: 3 publications 2011: 3 publications 2012: 3 publications 2013: 2 publications 2014: 1 publication 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 4 publications
1955 2022

181 publications in total across all disciplines

View publications per year as a table
Charles F. Yocum: publications per year, 1955 to 2022
Year Publications
1955 1
1956 0
1957 0
1958 0
1959 0
1960 0
1961 0
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 2
1969 1
1970 1
1971 0
1972 1
1973 2
1974 0
1975 1
1976 3
1977 4
1978 1
1979 3
1980 7
1981 8
1982 1
1983 3
1984 6
1985 7
1986 10
1987 4
1988 2
1989 8
1990 14
1991 3
1992 3
1993 4
1994 6
1995 5
1996 11
1997 4
1998 8
1999 5
2000 0
2001 2
2002 3
2003 2
2004 2
2005 6
2006 2
2007 2
2008 6
2009 1
2010 3
2011 3
2012 3
2013 2
2014 1
2015 0
2016 0
2017 0
2018 0
2019 0
2020 0
2021 0
2022 4
Total 181
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Charles F. Yocum 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 Charles F. Yocum 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, 161–180 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: 177 publications — 24th percentile

24% 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
101–120 623
121–140 918
141–160 1,218
161–180 1,350 177
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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Charles F. Yocum 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 Charles F. Yocum 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, 54–55 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: 55 D-Index — 33rd percentile

33% 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
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933 55
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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Research.com Recognitions

  • 2002 - Fellow of John Simon Guggenheim Memorial Foundation
  • 2001 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Charles F. Yocum is affiliated with the University of Michigan-Ann Arbor in the United States. Their research spans several fields including Biochemistry, Genetics and Molecular Biology, and Neuroscience. Within these broader areas, their work focuses particularly on Molecular Biology, Cellular and Molecular Neuroscience, and Atomic and Molecular Physics, and Optics.

The main topics covered by Charles F. Yocum include Photosynthetic Processes and Mechanisms, Photoreceptor and Optogenetics Research, Spectroscopy and Quantum Chemical Studies, Mitochondrial Function and Pathology, and ATP Synthase and ATPases Research.

Recent publications by Charles F. Yocum and collaborators include:

  • Charge separation in the photosystem II reaction center resolved by multispectral two-dimensional electronic spectroscopy, 2023, Science Advances
  • Photosystem 2 and the oxygen evolving complex: a brief overview, 2022, Photosynthesis Research
  • Preface: special issues on photosystem II, 2022, Photosynthesis Research
  • Charge Separation in the Photosystem II Reaction Center Resolved by Multispectral Two-Dimensional Electronic Spectroscopy, 2022, arXiv (Cornell University)

Their frequent co-authors include Hoang H. Nguyen, Elizabeth L. Maret, Yogita Silori, Rhiannon Willow, and Jennifer P. Ogilvie.

Charles F. Yocum has published mainly in the venues Photosynthesis Research, Science Advances, and arXiv (Cornell University).

They have been recognized with fellowships at notable organizations including the John Simon Guggenheim Memorial Foundation in 2002 and the American Association for the Advancement of Science (AAAS) in 2001.

Best Publications

  • A highly resolved, oxygen-evolving photosystem II preparation from spinach thylakoid membranes

    Deborah A. Berthold;Gerald T. Babcock;Charles F. Yocum

  • STRUCTURE AND FUNCTION OF PHOTOSYSTEMS I AND II

    Nathan Nelson;Charles F. Yocum

  • Oxygenic photosynthesis: the light reactions.

    Donald R. Ort;Charles F. Yocum

  • Vibronic coherence in oxygenic photosynthesis

    Franklin D. Fuller;Jie Pan;Andrius Gelzinis;Vytautas Butkus

  • Calcium reconstitutes high rates of oxygen evolution in polypeptide depleted Photosystem II preparations

    Demetrios F. Ghanotakis;Gerald T. Babcock;Charles F. Yocum

  • Water oxidation in photosystem II: from radical chemistry to multielectron chemistry.

    Gerald T. Babcock;B. A. Barry;R. J. Debus;C. W. Hoganson

  • Water-soluble 17 and 23 kDa polypeptides restore oxygen evolution activity by creating a high-affinity binding site for Ca2+ on the oxidizing side of Photosystem II

    Demetrios F. Ghanotakis;James N. Topper;Gerald T. Babcock;Charles F. Yocum

  • Isolation and characterization of an oxygen-evolving Photosystem II reaction center core preparation and a 28 kDa Chl-a-binding protein

    Demetrios F. Ghanotakis;Demetris M. Demetriou;Charles F. Yocum

  • The calcium and chloride requirements of the O2 evolving complex

    Charles F. Yocum

  • Photosystem II and the Oxygen-Evolving Complex

    Demetrios F. Ghanotakis;Charles F. Yocum

  • Structural characterization of the manganese sites in the photosynthetic oxygen-evolving complex using x-ray absorption spectroscopy

    James E. Penner-Hahn;Richard M. Fronko;Vincent L. Pecoraro;Charles F. Yocum

  • Calcium activation of photosynthetic water oxidation

    Charles F. Yocum

  • Stoichiometry, inhibitor sensitivity, and organization of manganese associated with photosynthetic oxygen evolution.

    C. F. Yocum;C. T. Yerkes;R. E. Blankenship;R. R. Sharp

  • Structural and catalytic properties of the oxygen-evolving complex. Correlation of polypeptide and manganese release with the behavior of Z+ in chloroplasts and a highly resolved preparation of the PS II complex

    Demetrios F. Ghanotakis;Demetrios F. Ghanotakis;Gerald T. Babcock;Charles F. Yocum

  • Evidence for a ferredoxin-dependent choline monooxygenase from spinach chloroplast stroma.

    Renaud Brouquisse;Pierre Weigel;David Rhodes;Charles F. Yocum

  • The Photosynthetic Oxygen Evolving Complex Requires Chloride for Its Redox State S2→S3 and S3→S0 Transitions But Not for S0→S1 or S1→S2 Transitions†

    Hanna Wincencjusz;and Hans J. van Gorkom;Charles F. Yocum

  • THE CHLORIDE REQUIREMENT FOR PHOTOSYNTHETIC OXYGEN EVOLUTION ANALYSIS OF THE EFFECTS OF CHLORIDE AND OTHER ANIONS ON AMINE INHIBITION OF THE OXYGEN-EVOLVING COMPLEX

    Peter O. Sandusky;Charles F. Yocum

  • Chlorophyll and cytochrome b‐559 content of the photochemical reaction center of photosystem II

    Jan P. Dekker;Neil R. Bowlby;Charles F. Yocum

  • Recent advances in the understanding of the biological chemistry of manganese.

    Charles F Yocum;Vincent L Pecoraro

  • The mechanism of amine inhibition of the photosynthetic oxygen evolving complex: Amines displace functional chloride from a ligand site on manganese

    Peter O. Sandusky;Charles F. Yocum

Frequent Co-Authors

Gerald T. Babcock
Gerald T. Babcock Michigan State University
James E. Penner-Hahn
James E. Penner-Hahn University of Michigan–Ann Arbor
Eran Pichersky
Eran Pichersky University of Michigan–Ann Arbor
Jan P. Dekker
Jan P. Dekker Vrije Universiteit Amsterdam
Vincent L. Pecoraro
Vincent L. Pecoraro University of Michigan–Ann Arbor
Ryszard Jankowiak
Ryszard Jankowiak Kansas State University
Gerald J. Small
Gerald J. Small Iowa State University
Michael Seibert
Michael Seibert National Renewable Energy Laboratory
Nathan Nelson
Nathan Nelson Tel Aviv University
Donald R. Ort
Donald R. Ort University of Illinois at Urbana-Champaign

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