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Chromic Properties of Dibenzo[j,l]fluoranthenes Exhibiting Different Resonance Contribution Based on Cross-conjugation

05 June 2023, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Herein we designed hydroxy-substituted dibenzo[j,l]fluoranthenes as novel chromic compounds and evaluated their halochromic properties by UV-vis and fluorescence spectroscopy. Under basic conditions, the 1-hydroxy derivatives show hyperchromic shift, whereas the 9-hydroxy derivatives show bathochromic shift and fluorescence although the skeleton of chromophore is same. Density functional theory (DFT) calculations indicated that the different chromic properties are attributed to the difference in their resonance structures.

Keywords

Chromism
Cross-conjugation
Fluoranthenes

Supplementary materials

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Description
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Title
Kurokawa's SI
Description
experimental and additional data
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Version History

Jun 05, 2023 Version 1

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The content is available under CC BY 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-7mzbq
D O I: 10.26434/chemrxiv-2023-7mzbq [opens in a new tab]

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) declare that they have sought and gained approval from the relevant ethics committee/IRB for this research and its publication.

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