04570nam a22006135i 4500 978-981-99-7062-9 DE-He213 20251030110913.0 cr nn 008mamaa 240103s2024 si | s |||| 0|eng d 9789819970629 978-981-99-7062-9 10.1007/978-981-99-7062-9 doi QD146-197 PNK bicssc SCI013030 bisacsh PNK thema Donoshita, Masaki. author. aut http://id.loc.gov/vocabulary/relators/aut 69127 Design of Crystal Structures Using Hydrogen Bonds on Molecular-Layered Cocrystals and Proton–Electron Mixed Conductor [electronic resource] / by Masaki Donoshita. 1st ed. 2024. Singapore : Springer Nature Singapore : Imprint: Springer, 2024. XII, 79 p. 57 illus., 49 illus. in color. online resource. text txt rdacontent computer c rdamedia online resource cr rdacarrier text file PDF rda Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061 General Introduction -- Rational Construction of Molecular Electron-conducting Nanowires Encapsulated in Proton-conducting Matrix in a Charge Transfer Salt -- Drastic Rearrangement of Self-assembled Hydrogen-bonded Tapes in a Molecular Crystal -- Various Stacking Patterns of Two-Dimensional Molecular Assemblies in Hydrogen-Bonded Cocrystals: Insight into Competitive Intermolecular Interactions and Control of Stacking Patterns -- General Conclusion. This thesis addresses the design of crystal structures using hydrogen bonds. In particular, it focuses on the design of functionalities and the control over the packing of molecular assemblies, based on molecular designs. Firstly, the synthesis and evaluation of a proton–electron mixed conducting charge transfer salt is reported. Focusing on the difference in the strength of hydrogen bonds and weaker intermolecular interactions, a system was rationally designed and constructed where electron-conducting molecular wires were encapsulated within a proton-conducting matrix. Next, the investigation of structural phase transitions in a cocrystal consisting of hydrogen-bonded two-dimensional molecular assemblies is reported. Drastic rearrangements of hydrogen-bonded molecular assemblies in the cocrystal led to single-crystal-to-single-crystal phase transitions, resulting in anisotropic changes in the crystal shape. Furthermore, chemical modification ofa component molecule in the cocrystal is reported. The modification afforded control over the stacking patterns of the two-dimensional molecular assemblies, i.e., sheets, and the mechanism was discussed considering the intersheet intermolecular interactions and molecular motion. It is suggested that hydrogen bonds are beneficial to construct molecular assemblies in molecular crystals because of their strength and well-defined directionality, and the consideration of coexisting weaker intermolecular interactions can lead to the design of whole crystal structures and, hence, functionalities. This thesis benefits students and researchers working on solid-state chemistry by presenting various methods for characterizing and evaluating the properties of molecular solids. Inorganic chemistry. 65284 Solid state chemistry. 69128 Chemical bonds. 69129 Supramolecular chemistry. 69130 Materials Analysis. Condensed matter. 66773 Inorganic Chemistry. 65284 Solid-State Chemistry. 69131 Chemical Bonding. 69132 Supramolecular Chemistry. 69133 Materials Characterization Technique. Phase Transition and Critical Phenomena. 69134 SpringerLink (Online service) Springer Nature eBook Printed edition: 9789819970612 Printed edition: 9789819970636 Printed edition: 9789819970643 Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061 66370 https://doi.org/10.1007/978-981-99-7062-9 ZDB-2-CMS ZDB-2-SXC 57067 57067