Skip to content
DraconiticResearch
Search Sources API
186,123 studies31 sourcesUpdated 7 min ago
PreprintCC BY-NCChemRxiv

Unravelling concomitant pseudopolymorphs of 5,10,15,20-meso-tetrakis(4-hydroxy-3,5-dimethoxyphenyl)porphyrin: structural insight in to a guest free and two solvated forms by using MicroED

  • Papari Konwar1,2
  • Takanori Nakane3,4
  • Akihiro Kawamoto3,4
  • Genji Kurisu3,4
  • Toshiyuki Sasaki5
  • Ranjit Thakuria1,6
  • Tridib Sarma1,2
6 affiliations
  1. 1Department of Chemistry
  2. 2Cotton University,
  3. 3Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka , Japan, 565-0871
  4. 4JEOL YOKOGUSHI Research Alliance Laboratories, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka , Japan, 565-0871
  5. 5Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, Japan, 679-5198
  6. 6Gauhati University
Open at sourcePDFDOICite

Abstract

Crystal structures of three concomitant pseudopolymorphs of 5,10,15,20-meso-tetrakis(4-hydroxy-3,5-dimethoxyphenyl)porphyrin (1), comprising a solvent free form and two solvates, were elucidated by three-dimensional rotational electron diffraction (3DED/MicroED). This finding presents structural insight of 1 and highlights the potential of MicroED in resolving complex pseudopolymorphic mixtures from a single batch of sample. The ability of porphyrins to spontaneously organize into a highly ordered supramolecular architecture via noncovalent interactions has made them attractive building blocks for functional materials. Such assemblies are fascinating because they can be prepared relatively easily, are biomimetic in nature and exhibit excellent solution processability. Moreover, they give rise to diverse solid state arrangements in response to environmental factors, particularly solvents. This structural versatility has enabled their exploration in a wide range of applications

Related

  1. Stepwise reduction of a porphyrin nanowire: minimal structural reorganization up to the open-shell tetraanion
    Wojciech Stawski, Yikun Zhu, Dariusz W. Szczepanik +3
    ChemRxivPreprintCC BYFull textMaterials & polymersChemRxiv
  2. Synthesis, crystal structure, Hirshfeld surface analysis and halogen-involving interactions in a bromo/chloro-substituted Schiff base 1-(3-bromo-4,5-dimethoxyphenyl)-N-(2,4-dichlorophenyl)methanimine
    Charef Tabti, Hafsa Khaldi, Abdelmadjid Benmohammed +4
    Acta Crystallographica Section C : Structural Chemistry [2014-...]Peer-reviewedPublisher termsFull textInorganic & organometallic chemistryOrganic chemistryHAL
  3. Chitosan as a Sustainable Loading-Density-Tunable Scaffold for Switching Energy- and Electron-Transfer Pathways in Porphyrin Photocatalysis
    Kushal Mohan Gowda, Yasuko Osakada, Mamoru Fujitsuka +5
    ChemRxivPreprintLicence not statedGeneral chemistryChemRxiv
  4. A Negatively Curved Porphyrin [10]Circulene
    Sara Borghi, Raymond M. van Rijn, Ka Man Cheung +3
    ChemRxivPreprintCC BYOrganic chemistryChemRxiv
  5. Addressing Environmental Challenges of Porphyrin Mixtures Obtained from Statistical Syntheses
    Helen Hölzel, Maximilian Muth, Dominik Lungerich +1
    Chemistry–MethodsPeer-reviewedCC BY-NC-ND 4.0Full text8 citedMaterials & polymersHAL

Cite

BibTeXRIS
BibTeX
@misc{konwar2026unravelling,
  title = {{Unravelling concomitant pseudopolymorphs of 5,10,15,20-meso-tetrakis(4-hydroxy-3,5-dimethoxyphenyl)porphyrin: structural insight in to a guest free and two solvated forms by using MicroED}},
  author = {Papari Konwar and Takanori Nakane and Akihiro Kawamoto and Genji Kurisu and Toshiyuki Sasaki and Ranjit Thakuria and Tridib Sarma},
  howpublished = {ChemRxiv},
  year = {2026},
  month = sep,
  doi = {10.26434/chemrxiv.15009203/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009203/v1},
  note = {CC BY-NC},
}
RIS
TY  - UNPB
TI  - Unravelling concomitant pseudopolymorphs of 5,10,15,20-meso-tetrakis(4-hydroxy-3,5-dimethoxyphenyl)porphyrin: structural insight in to a guest free and two solvated forms by using MicroED
AU  - Papari Konwar
AU  - Takanori Nakane
AU  - Akihiro Kawamoto
AU  - Genji Kurisu
AU  - Toshiyuki Sasaki
AU  - Ranjit Thakuria
AU  - Tridib Sarma
PY  - 2026
DA  - 2026/09/21
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15009203/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009203/v1
AB  - Crystal structures of three concomitant pseudopolymorphs of 5,10,15,20-meso-tetrakis(4-hydroxy-3,5-dimethoxyphenyl)porphyrin (1), comprising a solvent free form and two solvates, were elucidated by three-dimensional rotational electron diffraction (3DED/MicroED). This finding presents structural insight of 1 and highlights the potential of MicroED in resolving complex pseudopolymorphic mixtures from a single batch of sample. The ability of porphyrins to spontaneously organize into a highly ordered supramolecular architecture via noncovalent interactions has made them attractive building blocks for functional materials. Such assemblies are fascinating because they can be prepared relatively easily, are biomimetic in nature and exhibit excellent solution processability. Moreover, they give rise to diverse solid state arrangements in response to environmental factors, particularly solvents. This structural versatility has enabled their exploration in a wide range of applications
ER  -