# Laterally π-Extended Polyhelicenes https://mdr.nims.go.jp/datasets/ac1234fa-c240-4afd-b549-b83c065f13df ## Files - [laterally-π-extended-polyhelicenes.pdf](https://mdr.nims.go.jp/filesets/a0df1f12-f5fb-4fa1-b34c-7a2e8150bb75/download) ([Detail](https://mdr.nims.go.jp/filesets/a0df1f12-f5fb-4fa1-b34c-7a2e8150bb75.md)) ## Id ac1234fa-c240-4afd-b549-b83c065f13df ## Local identifier ## Visibility open_to_public ## State published ## Created at 2025-11-27T05:18:44.662415Z ## Updated at 2025-11-28T03:30:07.612747Z ## Published at 2025-11-28T03:24:17.048205Z ## Doi ## First published url https://doi.org/10.1021/jacs.5c15494 ## Date published 2025-11-26 ## Recorded date published 2025-11-26 ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Laterally π-Extended Polyhelicenes title_type: original lang: en ## Description - description: Helically coiled, semiconducting graphenic nanostructures show exceptional promise for nanoelectronics, yet their synthesis has remained challenging due to their inherently strained backbone and the difficulties associated with structural characterization. In this work, we demonstrate the synthesis and characterization of laterally π-extended polyhelicenes (EPHs), achieved through regioselective cyclodehydrogenation. Spectroscopic and microscopic analyses, including mass spectrometry, solid-state NMR, scanning-probe microscopy, and transmission electron microscopy, confirm the well-defined helical, layered architecture of the EPHs. Ultrafast terahertz spectroscopy reveals pronounced intra-helix photoconductivity, demonstrating their potential as carbon-based nanoscale conductors. The scalable synthetic approach described in this work unlocks the application potential of carbon-based helical nanostructures, paving the way for nanoinductors in nanoscale solenoids, spin-selective electronics, and future high-frequency nanoelectronic devices. description_type: abstract lang: und ## Creator - name: Hao Wu role: author - name: Zijie Qiu role: author orcid: https://orcid.org/0000-0003-0728-1178 - name: Guanzhao Wen role: author orcid: https://orcid.org/0009-0002-1198-2110 - name: Antoine Hinaut role: author orcid: https://orcid.org/0000-0002-2608-2564 - name: Koji Harano role: author orcid: https://orcid.org/0000-0001-6800-8023 - name: Robert Graf role: author orcid: https://orcid.org/0000-0003-2302-0760 - name: Deborah Prezzi role: author orcid: https://orcid.org/0000-0002-7294-7450 - name: Lilian Estaque role: author - name: Yu-Liang Tsai role: author - name: Dieter Schollmeyer role: author - name: Grégory Pieters role: author orcid: https://orcid.org/0000-0002-3924-8287 - name: Elisa Molinari role: author - name: Rémy Pawlak role: author orcid: https://orcid.org/0000-0001-8295-7241 - name: Ernst Meyer role: author orcid: https://orcid.org/0000-0001-6385-3412 - name: Koji Kimoto role: author orcid: https://orcid.org/0000-0002-3927-0492 - name: Hai I. Wang role: author orcid: https://orcid.org/0000-0003-0940-3984 - name: Mischa Bonn role: author orcid: https://orcid.org/0000-0001-6851-8453 - name: Klaus Müllen role: author orcid: https://orcid.org/0000-0001-6630-8786 - name: Akimitsu Narita role: author orcid: https://orcid.org/0000-0002-3625-522X ## Contact agent ## Publisher organization: American Chemical Society (ACS) ## Managing organization ## Keyword - subject: helicenes schema: not_defined - subject: electron microscopy schema: not_defined - subject: polyaromatic hydrocarbons schema: not_defined - subject: terahertz spectroscopy schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ ## Other identifier(s) ## Data origin ## Embargo ## Journal - title: Journal of the American Chemical Society issn: '00027863' volume: '147' issue: '47' start_page: 43842 end_page: 43849 ## Conference ## Related item ## Funding - funder_name: Werner Siemens-Stiftung - identifier: 200021-228403 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: 200021L-219983 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: 51NF40-180604 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: CRSII5 213533 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: '437130745' funder_name: Deutsche Forschungsgemeinschaft - funder_name: Johannes Gutenberg-Universit?t Mainz - identifier: JCYJ20220530143805012 funder_name: Science, Technology and Innovation Commission of Shenzhen Municipality - identifier: KQTD20210811090142053 funder_name: Science, Technology and Innovation Commission of Shenzhen Municipality - identifier: JP19K24686 funder_name: Japan Society for the Promotion of Science - identifier: JP23H04874 funder_name: Japan Society for the Promotion of Science - identifier: JP24K01474 funder_name: Japan Society for the Promotion of Science - funder_name: Max-Planck-Gesellschaft - funder_name: Swiss Nanoscience Institute - funder_name: Okinawa Institute of Science and Technology Graduate University - funder_name: China Scholarship Council - identifier: '52303382' funder_name: National Natural Science Foundation of China - identifier: ZDSYS20211021111400001 funder_name: Shenzhen Key Laboratory of Functional Aggregate Materials ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: a0df1f12-f5fb-4fa1-b34c-7a2e8150bb75 filename: laterally-π-extended-polyhelicenes.pdf content_type: application/pdf size: 5372935 md5: 259cd21a274d3d6009d784ac535e13b7 ## Thumbnail fileset_id: a0df1f12-f5fb-4fa1-b34c-7a2e8150bb75 filename: laterally-π-extended-polyhelicenes.pdf