In:
Helvetica Chimica Acta, Wiley, Vol. 105, No. 4 ( 2022-04)
Abstract:
We present the concept of combining circularly polarized luminescence (CPL) and excited‐state intramolecular proton transfer (ESIPT) features into a single molecule as a strategy to generate high‐performance ESIPT‐based CPL materials. For this purpose, a [6]helicene bearing two ESIPT structural units was synthesized using a double Suzuki–Miyaura reaction and a double C(sp 2 )−H hydroxylation approach. The photophysical properties of the doubly hydroxylated [6]helicene were studied in parallel with a non‐hydroxylated [6] helicene control compound, revealing that the presence of a chiral [6]helicene unit results in a strong CPL response and the presence of the ESIPT units in a considerable red shift. The red‐shifted emission along with the outstanding g lum (≈10 −2 ) and a large Stokes shift makes the doubly hydroxylated [6]helicene a promising candidate for use in optoelectronics.
Type of Medium:
Online Resource
ISSN:
0018-019X
,
1522-2675
DOI:
10.1002/hlca.202100221
Language:
English
Publisher:
Wiley
Publication Date:
2022
detail.hit.zdb_id:
74-7
detail.hit.zdb_id:
1475013-2