Synthesis, Characterization and Unusual Near-Infrared Luminescence of 1,1,4,4-Tetracyanobutadienes

13 December 2019, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Two 1,1,4,4-tetracyanobutadiene (TCBD) derivatives were prepared by [2+2]cycloaddition-retroelectrocyclization from ynamides bearing either a pyrene (1) or a perylene unit (2). In addition to panchromatic absorptions in 2, in the solid state, both compounds unexpectedly display NIR photoluminescence that could be detected up to about 1350 nm.

Keywords

ynamide chemistry
Tetracyanobutadiene
panchromatic dyes
NIR emission

Supplementary materials

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