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Title: | A Thiophenoradialene-Embedded Polycyclic Heteroterphenoquinone Exhibiting Dominant Antiaromatic Traits |
Authors: | Sharma, P.K. Mallick, D Das, S. |
Issue Date: | 7-Jul-2024 |
Abstract: | A thiophenoradialene-embedded polycyclic heteroterphenoquinone (PHTPQ) derivative of diindeno[1,2-b:2′,1′-d]thiophene-2,8-dione, with antiaromatic characteristics, was synthesized by dehydrogenating its fluorescent dihydro PHTPQ precursor. The antiaromatic character was evidenced by the visible absorption band with a weakly intense tail extending to 800 nm in the near-infrared region (forbidden HOMO → LUMO transition) and non-emissive and amphoteric redox properties. Single-crystal and (anti)aromaticity analyses found a non-aromatic thiophene core while suggesting antiaromaticity/paratropicity of the pentafulvene subunits dominating the overall ground state properties. |
URI: | http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/4675 |
Appears in Collections: | Year-2023 |
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