Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shunichi Fukuzumi | * |
dc.date.accessioned | 2018-11-21T16:30:23Z | - |
dc.date.available | 2018-11-21T16:30:23Z | - |
dc.date.issued | 2018 | * |
dc.identifier.issn | 1088-4246 | * |
dc.identifier.other | OAK-22362 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/246730 | - |
dc.description.abstract | We report herein that chiral and enantiopure compounds such nucleosides and peptides can pre-organize multi-porphyrinic systems and influence their properties. The first example given concerns star-shaped mutli-porphyrins with chiral and enantiopure nucleosidic linkers. If the configuration is indeed a star-shaped nanomolecule, it appears that the induced conformation is nothing as expected. The four peripheral Zn(II) porphyrins collapse over the free-base central one, inducing totally different photo-physical properties. Despite a minor expected light energy harvesting behavior, the principal capability of this system is to quench the collected light energy and convert it from radiative to non-radiative de-activation. The second example concerns polypeptides with pendant porphyrins. The peptidic backbone confers to the systems, after a certain degree of oligomerization, a 310 right handed helical conformation which induces cavities within the multi-porphyrinc architecture, ready to welcome guests and render, for example, the complexation of C60 much easier. We thus have constructed novel organic photovoltaic systems using supramolecular complexes of porphyrin-peptide oligomers with fullerene clusters. The composite cluster OTE/SnO2 electrode prepared with (P(ZnP)16+ C60)m, exhibits an impressive incident photon-to-photocurrent efficiency (IPCE) with values reaching as high as 56%. The power conversion efficiency of the (P(H2P)16+ C60)m modified electrode reaches 1.6%, which is 40 times higher than the value (0.043%) of the porphyrin monomer (P(H2P)1 + C60)m modified electrode. Thus, the organization approach between porphyrins and fullerenes with polypeptide structures is promising, and may make it possible to further improve the light energy conversion properties by using a larger number of porphyrins in a polypeptide unit. © 2018 World Scientific Publishing Company. | * |
dc.description.sponsorship | Centre National de la Recherche Scientifique | * |
dc.language | English | * |
dc.publisher | World Scientific Publishing Co. Pte Ltd | * |
dc.subject | binding studies | * |
dc.subject | nucleosides | * |
dc.subject | porphyrines | * |
dc.subject | supramolecular complexes | * |
dc.title | Chirality and spatially pre-organized multi-porphyrinoids | * |
dc.type | Article | * |
dc.relation.issue | 4 | * |
dc.relation.volume | 22 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 291 | * |
dc.relation.lastpage | 302 | * |
dc.relation.journaltitle | Journal of Porphyrins and Phthalocyanines | * |
dc.identifier.doi | 10.1142/S1088424618500396 | * |
dc.identifier.wosid | WOS:000429813400001 | * |
dc.identifier.scopusid | 2-s2.0-85044351638 | * |
dc.author.google | Sooambar C. | * |
dc.author.google | Troiani V. | * |
dc.author.google | Qiu H. | * |
dc.author.google | Fukuzumi S. | * |
dc.author.google | Flamigni L. | * |
dc.author.google | Rein R. | * |
dc.author.google | Solladié N. | * |
dc.contributor.scopusid | Shunichi Fukuzumi(35430038100;58409757400) | * |
dc.date.modifydate | 20240401081001 | * |