PMID- 32780911 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20201217 LR - 20201217 IS - 1521-3773 (Electronic) IS - 1433-7851 (Linking) VI - 59 IP - 46 DP - 2020 Nov 9 TI - Tailoring Spectral and Photochemical Properties of Bioinspired Retinal Mimics by in Silico Engineering. PG - 20619-20627 LID - 10.1002/anie.202008644 [doi] AB - Controlling the spectral tunability and isomerization activity is currently one of the hot topics in the design of photoreversible molecular switches for application in optoelectronic devices. The present work demonstrates how to manipulate the absorption of the retinal protonated Schiff base (rPSB) chromophore over the entire visible range by targeted functionalization of the retinal backbone. Moreover, a correlation between the vertical excitation energy and the profile of the potential energy surface of the bright excited state responsible for the photoreactivity of rPSB is established. This correlation was exploited to rank the functionalized rPSBs into different classes with characteristic photoisomerization activity. Eventually, the synergic effects of functionalization and of external electric fields in the range of a few MV cm(-1) were applied to achieve reversable and regioselective control of the photoisomerization propensity of selected rPBS derivatives. CI - (c) 2020 Wiley-VCH GmbH. FAU - El-Tahawy, Mohsen M T AU - El-Tahawy MMT AUID- ORCID: 0000-0002-9561-9521 AD - Dipartimento di Chimica industriale "Toso Montanari", Universita di Bologna, Viale del Risorigmento 4, 40136, Bologna, Italy. AD - Chemistry Department, Faculty of Science, Damanhour University, Damanhour, 22511, Egypt. FAU - Conti, Irene AU - Conti I AUID- ORCID: 0000-0001-7982-4480 AD - Dipartimento di Chimica industriale "Toso Montanari", Universita di Bologna, Viale del Risorigmento 4, 40136, Bologna, Italy. FAU - Bonfanti, Matteo AU - Bonfanti M AUID- ORCID: 0000-0002-6361-5163 AD - Dipartimento di Chimica industriale "Toso Montanari", Universita di Bologna, Viale del Risorigmento 4, 40136, Bologna, Italy. FAU - Nenov, Artur AU - Nenov A AUID- ORCID: 0000-0003-3071-5341 AD - Dipartimento di Chimica industriale "Toso Montanari", Universita di Bologna, Viale del Risorigmento 4, 40136, Bologna, Italy. FAU - Garavelli, Marco AU - Garavelli M AUID- ORCID: 0000-0002-0796-289X AD - Dipartimento di Chimica industriale "Toso Montanari", Universita di Bologna, Viale del Risorigmento 4, 40136, Bologna, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200915 PL - Germany TA - Angew Chem Int Ed Engl JT - Angewandte Chemie (International ed. in English) JID - 0370543 SB - IM OTO - NOTNLM OT - Schiff bases OT - absorption OT - isomerization OT - optoelectronics OT - photochemistry EDAT- 2020/08/12 06:00 MHDA- 2020/08/12 06:01 CRDT- 2020/08/12 06:00 PHST- 2020/07/01 00:00 [received] PHST- 2020/08/12 06:00 [pubmed] PHST- 2020/08/12 06:01 [medline] PHST- 2020/08/12 06:00 [entrez] AID - 10.1002/anie.202008644 [doi] PST - ppublish SO - Angew Chem Int Ed Engl. 2020 Nov 9;59(46):20619-20627. doi: 10.1002/anie.202008644. Epub 2020 Sep 15.