Universität zu Köln

Schwartz, Heidi A., Werker, Melanie, Tobeck, Christian, Christoffels, Ronja, Schaniel, Dominik, Olthof, Selina ORCID: 0000-0002-8871-1549, Meerholz, Klaus, Kopacka, Holger, Huppertz, Hubert ORCID: 0000-0002-2098-6087 and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2020). Novel Photoactive Spirooxazine Based Switch@MOF Composite Materials. ChemPhotoChem, 4 (3). S. 195 - 207. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 2367-0932

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Abstract

Molecules, which reversibly transform between two structural configurations upon excitation with electromagnetic radiation, are attractive candidates for the design of smart materials e. g. memory devices. A possible approach for the development of such smart materials is the construction of hybrid systems that contain these photochromic molecules as well as a porous host matrix, which enables their switching process in the solid state. We herein present the first light-responsive materials consisting of the photoswitchable spirooxazine 1,3,3-trimethyl indolinonaphthospirooxazine (SP-O) and crystalline porous MOF (metal-organic framework) hosts, namely MOF-5, MIL-68(In), MIL-68(Ga), and MIL-53(Al), which were combined to form hybrid SP-O@MOF composites. These systems show a reversible photochromic response and host-dependent absorption maxima of the incorporated guest molecules. Most remarkably, SP-O is extremely photostable upon repetitive and prolonged UV light exposure especially inside MOF-5, making these composite materials attractive candidates for potential applications in data storage devices.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schwartz, Heidi A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Werker, Melanie UNSPECIFIED UNSPECIFIED UNSPECIFIED Tobeck, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Christoffels, Ronja UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaniel, Dominik UNSPECIFIED UNSPECIFIED UNSPECIFIED Olthof, Selina UNSPECIFIED orcid.org/0000-0002-8871-1549 UNSPECIFIED Meerholz, Klaus UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopacka, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED Huppertz, Hubert UNSPECIFIED orcid.org/0000-0002-2098-6087 UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-349095
DOI:	10.1002/cptc.201900193
Journal or Publication Title:	ChemPhotoChem
Volume:	4
Number:	3
Page Range:	S. 195 - 207
Date:	2020
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	2367-0932
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language METAL-ORGANIC FRAMEWORKS; AZOBENZENE; ADSORPTION; BEHAVIOR; DESIGN; FILMS; ISOMERIZATION; FUNCTIONALITY; SEPARATION; DELIVERY Multiple languages Chemistry, Physical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/34909