A Configurationally Stable Indenofluorene-Based Helical Diradicaloid

17 April 2024, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The synthesis and the optoelectronic, magnetic and chiroptical properties of a helically chiral diradicaloid have been reported. Dibenzoindeno[2,1-c]fluorene, the simplest configurationally stable chiral derivative of the family of the indenofluorenes, shows a low HOMO-LUMO gap and a moderate singlet-triplet gap. Enantiomers have been isolated and are configurationally stable. Electronic circular dichroism has been measured and dissymmetry factor calculated. Our experimental findings are supported by DFT calculations.

Keywords

diradicaloids
chirality
helicenoids
indenofluorene

Supplementary materials

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Description
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Supporting Information
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Characterization of compounds, further experimental results, theoretical calculations
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