Helder M. Marques

5.8k total citations
176 papers, 5.1k citations indexed

About

Helder M. Marques is a scholar working on Molecular Biology, Materials Chemistry and Inorganic Chemistry. According to data from OpenAlex, Helder M. Marques has authored 176 papers receiving a total of 5.1k indexed citations (citations by other indexed papers that have themselves been cited), including 85 papers in Molecular Biology, 72 papers in Materials Chemistry and 55 papers in Inorganic Chemistry. Recurrent topics in Helder M. Marques's work include Porphyrin Metabolism and Disorders (61 papers), Porphyrin and Phthalocyanine Chemistry (47 papers) and Folate and B Vitamins Research (38 papers). Helder M. Marques is often cited by papers focused on Porphyrin Metabolism and Disorders (61 papers), Porphyrin and Phthalocyanine Chemistry (47 papers) and Folate and B Vitamins Research (38 papers). Helder M. Marques collaborates with scholars based in South Africa, Japan and United States. Helder M. Marques's co-authors include Pradeep R. Varadwaj, Arpita Varadwaj, Timothy J. Egan, Kenneth L. Brown, Orde Q. Munro, Koichi Yamashita, David A. Baldwin, John M. Pratt, Catherine H. Kaschula and Ignacy Cukrowski and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Biological Chemistry and The Journal of Physical Chemistry B.

In The Last Decade

Helder M. Marques

171 papers receiving 4.9k citations

Peers

Countries citing papers authored by Helder M. Marques

Since Specialization

Citations

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

Fields of papers citing papers by Helder M. Marques

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helder M. Marques. 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 Helder M. Marques. The network helps show where Helder M. Marques may publish in the future.

Co-authorship network of co-authors of Helder M. Marques

This figure shows the co-authorship network connecting the top 25 collaborators of Helder M. Marques. A scholar is included among the top collaborators of Helder M. Marques 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 Helder M. Marques. Helder M. Marques is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Definition of the Halogen Bond (IUPAC Recommendations 2013): A Revisit 2024 ·Crystal Growth & Design ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	15
2	π-Hole Halogen Bonds Are Sister Interactions to σ-Hole Halogen Bonds 2024 ·Crystal Growth & Design ·Pradeep R. Varadwaj, Helder M. Marques, Arpita Varadwaj, Koichi Yamashita	5
3	The Tetrel Bond and Tetrel Halide Perovskite Semiconductors 2023 ·International Journal of Molecular Sciences ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	7
4	The pnictogen bond forming ability of bonded bismuth atoms in molecular entities in the crystalline phase: a perspective 2023 ·CrystEngComm ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	14
5	Methylammonium Tetrel Halide Perovskite Ion Pairs and Their Dimers: The Interplay between the Hydrogen-, Pnictogen- and Tetrel-Bonding Interactions 2023 ·International Journal of Molecular Sciences ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	4
6	Definition of the tetrel bond 2023 ·CrystEngComm ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	57
7	The Pnictogen Bond, Together with Other Non-Covalent Interactions, in the Rational Design of One-, Two- and Three-Dimensional Organic-Inorganic Hybrid Metal Halide Perovskite Semiconducting Materials, and Beyond 2022 ·International Journal of Molecular Sciences ·Arpita Varadwaj, Pradeep R. Varadwaj, Helder M. Marques, Koichi Yamashita	24
8	The Nitrogen Bond, or the Nitrogen-Centered Pnictogen Bond: The Covalently Bound Nitrogen Atom in Molecular Entities and Crystals as a Pnictogen Bond Donor 2022 ·MDPI (MDPI AG) ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	29
9	The Phosphorus Bond, or the Phosphorus-Centered Pnictogen Bond: The Covalently Bound Phosphorus Atom in Molecular Entities and Crystals as a Pnictogen Bond Donor 2022 ·Molecules ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	28
10	The Stibium Bond or the Antimony-Centered Pnictogen Bond: The Covalently Bound Antimony Atom in Molecular Entities in Crystal Lattices as a Pnictogen Bond Donor 2022 ·International Journal of Molecular Sciences ·Arpita Varadwaj, Pradeep R. Varadwaj, Helder M. Marques, Koichi Yamashita	19
11	Chalcogen···Chalcogen Bonding in Molybdenum Disulfide, Molybdenum Diselenide and Molybdenum Ditelluride Dimers as Prototypes for a Basic Understanding of the Local Interfacial Chemical Bonding Environment in 2D Layered Transition Metal Dichalcogenides 2022 ·Inorganics ·Pradeep R. Varadwaj, Helder M. Marques, Arpita Varadwaj, Koichi Yamashita	9
12	Does Chlorine in CH3Cl Behave as a Genuine Halogen Bond Donor? 2020 ·Crystals ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques	25
13	Significance of hydrogen bonding and other noncovalent interactions in determining octahedral tilting in the CH3NH3PbI3 hybrid organic-inorganic halide perovskite solar cell semiconductor 2019 ·Scientific Reports ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	122
14	Nature of halogen‐centered intermolecular interactions in crystal growth and design: Fluorine‐centered interactions in dimers in crystalline hexafluoropropylene as a prototype 2019 ·Journal of Computational Chemistry ·Arpita Varadwaj, Helder M. Marques, Pradeep R. Varadwaj	17
15	The chalcogen bond: can it be formed by oxygen? 2019 ·Physical Chemistry Chemical Physics ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Preston J. MacDougall	38
16	Halogen Bonding: A Halogen-Centered Noncovalent Interaction Yet to Be Understood 2019 ·Inorganics ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques	137
17	Halogen in materials design: Chloroammonium lead triiodide perovskite (ClNH₃PbI₃) a dynamical bandgap semiconductor in 3D for photovoltaics 2018 ·Journal of Computational Chemistry ·Pradeep R. Varadwaj, Arpita Varadwaj, Helder M. Marques, Koichi Yamashita	3
18	Revealing Factors Influencing the Fluorine‐Centered Non‐Covalent Interactions in Some Fluorine‐Substituted Molecular Complexes: Insights from First‐Principles Studies 2018 ·ChemPhysChem ·Arpita Varadwaj, Pradeep R. Varadwaj, Helder M. Marques, Koichi Yamashita	32
19	A DFT assessment of some physical properties of iodine-centered halogen bonding and other non-covalent interactions in some experimentally reported crystal geometries 2018 ·Physical Chemistry Chemical Physics ·Arpita Varadwaj, Pradeep R. Varadwaj, Helder M. Marques, Koichi Yamashita	24
20	Fifty years of X-ray crystallography of vitamin B12 and its derivatives 2004 ·South African Journal of Science ·(unknown), Helder M. Marques	7

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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