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A photoresponsive azobenzene-bridged cubic silsesquioxane network
Journal of Sol-Gel Science and Technology, 2016An azobenzene (AZO)-bridged cubic silsesquioxane network exhibiting reversible photoisomerization behavior in nonpolar solvents has been prepared via hydrosilylation reaction between 4,4′-diallyloxy-azobenzene and octahydridosilsesquioxane (H8Si8O12; H-POSS). Approximately 70 % of the corner Si–H groups of H-POSS are reacted to form a three-dimensional
Sufang Guo +3 more
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Comparative Studies of thetrans−cisPhotoisomerizations of Azobenzene and a Bridged Azobenzene
The Journal of Physical Chemistry A, 2010Using density-functional-based molecular dynamics simulations, we have performed comparative studies of the trans-cis isomerizations of azobenzene and bridged azobenzene (B-Ab) 5,6-dihydrodibenzo[c,g][1,2]diazocine induced by nπ* electronic excitation.
Chen-Wei, Jiang +3 more
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Protonation-Enhanced Antiferromagnetic Couplings in Azobenzene-Bridged Diradicals
The Journal of Physical Chemistry C, 2017Proton-induced magnetic enhancement in an organic diradical is an appealing phenomenon. Here, taking two nitroxide groups as spin sources, we predict the magnetic properties of the trans and cis forms of azobenzene (AB)-bridged diradicals in which the central −N═N– unit can undergo single protonation to convert to its protonated counterpart or vice ...
Fengying Zhang, Xinyu Song, Yuxiang Bu
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The Journal of Physical Chemistry Letters, 2021
Through-space charge transfer (TSCT) has become a thriving strategy of modulating photogenerated charges in organic photoresponsive molecular systems for potential applications in luminescence, optoelectronics, and photochemical conversion. Yet fixed configuration between electron donor (D) and acceptor (A) is disadvantageous to mitigate charge ...
Huiting Zhou +6 more
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Through-space charge transfer (TSCT) has become a thriving strategy of modulating photogenerated charges in organic photoresponsive molecular systems for potential applications in luminescence, optoelectronics, and photochemical conversion. Yet fixed configuration between electron donor (D) and acceptor (A) is disadvantageous to mitigate charge ...
Huiting Zhou +6 more
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Synthesis and Characterization of an Azobenzene‐Functionalized Ethene‐Bridged PMO
Zeitschrift für anorganische und allgemeine Chemie, 2014Abstract The azobenzene‐functionalized ethene‐bridged periodic mesoporous organosilica (PMO) was synthesized in a three step process. After synthesizing the pure PMO the azobenzene switch was post synthetically grafted at the ethene bridge. The successful synthesis was verified by N2 sorption measurements, IR spectroscopy, elemental analysis, and solid
Gräfenstein, Lydia +3 more
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A Visible‐Light‐Triggered Conformational Diastereomer Photoswitch in a Bridged Azobenzene
Chemistry – A European Journal, 2016AbstractKetal‐substituted bridged azobenzenes have been synthesized; these display a symmetrical boat conformation with the ketal in pseudo‐equatorial positions. These bridged Z‐azobenzenes (Z1) readily photoisomerize to the E‐isomer as well as another Z‐conformer (Z2) with ketal function on the pseudo‐axial position upon irradiation at 406 nm. The two
Deo, Claire +4 more
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Isomeric double decker porphyrins bridged by four azobenzene units
J. Chem. Soc., Chem. Commun., 1988A novel macropentacyclic system (1) containing double layered porphyrin units which are bridged by four azobenzene links has been synthesized, two stable isomers being isolated, differing in spatial arrangement of the amide groups and azobenzene links; the complex formation of these compounds with zinc(II) is reported.
Karl Heinz Neumann, Fritz Vögtle
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Synthesis and spectroscopic investigation of directly azobenzene bridged diporphyrins
Tetrahedron, 1993Abstract The synthesis of new directly azobenzene bridged diporphyrins is described. The spectroscopic properties of the new compounds are discussed.
Hermann K. Hombrecher, Kerstin Lüdtke
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Nonadiabatic ab initio molecular dynamics of photoisomerization in bridged azobenzene
The Journal of Chemical Physics, 2012The photoisomerization mechanisms of bridged azobenzene are investigated by means of surface hopping dynamics simulations based on the Zhu-Nakamura theory. In the geometry optimizations and potential energy surface calculations, four minimum-energy conical intersections between the ground state and the lowest excited state are found to play important ...
Ai-Hua, Gao +3 more
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ChemInform Abstract: PHOTOCONTROLLED EXTRACTION ABILITY OF AZOBENZENE‐BRIDGED AZACROWN ETHER
Chemischer Informationsdienst, 1980AbstractAus dem entsprechenden Azobenzol‐dicarbonsäurechlorid (I) erhält man wie angegeben den überbrückten Kronenether (III), der hinsichtlich seines Extraktionsverhaltens gegenüber Alkalimetallen untersucht wird.
S. SHINKAI +4 more
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