BROWSE

Related Scientist

cncr's photo.

cncr
나노물질및화학반응연구단
more info

ITEM VIEW & DOWNLOAD

Charge transfer induced by electronic state mixing in a symmetric X-Y-X-type multi-chromophore system

DC Field Value Language
dc.contributor.authorSiin Kim-
dc.contributor.authorDoo-Sik Ahn-
dc.contributor.authorAhn, Mina-
dc.contributor.authorWee, Kyung-Ryang-
dc.contributor.authorJungkweon Choi-
dc.contributor.authorHyotcherl Ihee-
dc.date.accessioned2021-01-22T05:30:11Z-
dc.date.accessioned2021-01-22T05:30:11Z-
dc.date.available2021-01-22T05:30:11Z-
dc.date.available2021-01-22T05:30:11Z-
dc.date.created2021-01-22-
dc.date.issued2020-12-
dc.identifier.issn1463-9076-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/9085-
dc.description.abstractCharge transfer (CT) from electron donor (D) to acceptor (A) plays an important role in photoelectric or electrochemical devices and is a useful concept for a molecule with D and A well distinguishable. Here, we report our finding that even in a molecule with D and A not resolvable, CT can be induced by electronic state mixing (ESM) in a symmetric multi-chromophore system (MCS), namely 1,4-di(1-pyrenyl)benzene (Py-Benz-Py). Unlike Py and Py-Benz, Py-Benz-Py exhibits unique photophysical properties attributable to the reduction of the energy gap between two electronic states induced by ESM. The ESM for Py-Benz-Py is due to the extended pi-conjugation owing to the further introduction of Py into Py-Benz, and consequently leads to the favorable intramolecular CT, followed by the planarization due to the twisting motion between Py and phenyl moieties. Time-resolved spectroscopic data demonstrate that the twisting process of the Py moiety in acetonitrile occurs with two unequal time constants, suggesting the localized CT state and the asynchronous twisting dynamics of two Py moieties unlike the delocalized CT state in nonpolar and low-polarity solvents leading to the synchronous twisting of two Py moieties. This means that the symmetry-breaking CT in MCSs can induce an asynchronous twisting motion. The results reported here support that a molecule without CT can be turned into another molecule with CT induced by ESM and demonstrate that the excited-state relaxation dynamics can be regulated through the ESM induced by introducing the substituents or changing the environmental factors such as solvent polarities.-
dc.language영어-
dc.publisherROYAL SOC CHEMISTRY-
dc.titleCharge transfer induced by electronic state mixing in a symmetric X-Y-X-type multi-chromophore system-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000603167900049-
dc.identifier.scopusid2-s2.0-85098919339-
dc.identifier.rimsid74313-
dc.contributor.affiliatedAuthorSiin Kim-
dc.contributor.affiliatedAuthorDoo-Sik Ahn-
dc.contributor.affiliatedAuthorJungkweon Choi-
dc.contributor.affiliatedAuthorHyotcherl Ihee-
dc.identifier.doi10.1039/d0cp05132b-
dc.identifier.bibliographicCitationPHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.22, no.48, pp.28440 - 28447-
dc.relation.isPartOfPHYSICAL CHEMISTRY CHEMICAL PHYSICS-
dc.citation.titlePHYSICAL CHEMISTRY CHEMICAL PHYSICS-
dc.citation.volume22-
dc.citation.number48-
dc.citation.startPage28440-
dc.citation.endPage28447-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryPhysics, Atomic, Molecular & Chemical-
dc.subject.keywordPlusACTIVATED DELAYED FLUORESCENCE-
dc.subject.keywordPlusSINGLET-FISSION-
dc.subject.keywordPlusTRANSFER DYNAMICS-
dc.subject.keywordPlusPYRENE-
dc.subject.keywordPlusDERIVATIVES-
dc.subject.keywordPlusSOLVATION-
dc.subject.keywordPlusSOLVENT-
dc.subject.keywordPlusDNA-
dc.subject.keywordAuthorACTIVATED DELAYED FLUORESCENCE-
dc.subject.keywordAuthorSINGLET-FISSION-
dc.subject.keywordAuthorTRANSFER DYNAMICS-
dc.subject.keywordAuthorPYRENE-
dc.subject.keywordAuthorDERIVATIVES-
dc.subject.keywordAuthorSOLVATION-
dc.subject.keywordAuthorSOLVENT-
dc.subject.keywordAuthorDNA-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse