Boron-containing helicenes as new generation of chiral materials: opportunities and challenges of leaving the flatland

A Nowak-Król, PT Geppert, KR Naveen - Chemical Science, 2024 - pubs.rsc.org
Increased interest in chiral functional dyes has stimulated activity in the field of boron-
containing helicenes over the past few years. Despite the fact that the introduction of boron …

Expanded Azahelicenes with Large Dissymmetry Factors

GF Huo, WT Xu, Y Han, J Zhu, X Hou… - Angewandte Chemie …, 2024 - Wiley Online Library
Expanded azahelicenes, as heteroanalogues of helically chiral helicenes, hold significant
potential for chiroptical materials. Nevertheless, their investigation and research have …

Chiral π-Conjugated Double Helical Aminyl Diradical with the Triplet Ground State

H Guo, JB Lovell, C Shu, M Pink, M Morton… - Journal of the …, 2024 - ACS Publications
We report a neutral high-spin diradical of chiral C 2-symmetric bis [5] diazahelicene with Δ E
ST≈ 0.4 kcal mol–1, as determined by EPR spectroscopy/SQUID magnetometry. The …

Synthesis and Characterization of a Cyclic Trimer of a Chiral Spirosilabifluorene

R Nakazono, W Hu, T Hirose… - Chemistry–A European …, 2024 - Wiley Online Library
A chiral shape‐persistent macrocyclic compound (Si‐[3]), designed by the C/Si substitution
in the spiro‐atom of spirobifluorene in the cyclic trimer (C‐[3]), has been successfully …

Role of exciton delocalization in chiroptical properties of benzothiadiazole carbon nanohoops

K Kovida, J Malinčík, CM Cruz, AG Campaña… - Chemical …, 2025 - pubs.rsc.org
Development of chiral organic materials with a strong chiroptical response is crucial to
advance technologies based on circularly polarized luminescence, enantioselective …

Can Deep Learning Search for Exceptional Chiroptical Properties? The Halogenated [6] Helicene Case

RG Uceda, A Gijón, S Míguez‐Lago… - Angewandte …, 2024 - Wiley Online Library
The relationship between chemical structure and chiroptical properties is not always clearly
understood. Nowadays, efforts to develop new systems with enhanced optical properties …

Inversion of circularly polarized luminescence by electric current flow during transition

A Imayoshi, S Fujio, Y Nagaya, M Sakai… - Physical Chemistry …, 2025 - pubs.rsc.org
The development of chiral compounds exhibiting circularly polarized luminescence (CPL)
has advanced remarkably in recent years. Designing CPL-active compounds requires an …

Helical Ladder Oligomers Exhibit Amplified Circularly Polarized Emission

C Bræstrup, X **ao, F García‐González… - Advanced Optical …, 2025 - Wiley Online Library
Establishing design principles to engineer molecules that exhibit strong circularly polarized
luminescence (CPL)‐brightness across the UV, visible and NIR spectral range remains an …

Structures, Chiroptical Properties, and Unexpectedly Facile Helical Inversion of Highly Elongated Anthracene‐Fused Expanded Helicenes

H Fukuda, M Kobayashi, E Tsurumaki… - … A European Journal, 2024 - Wiley Online Library
Helical fused anthracenes were elongated by fusing additional aromatic units at both ends
to yield novel expanded helicenes. Compounds [5] HA2N and [7] HA consisting of 19 and 21 …

Synthesis and characterization of a chiral spirobifluorene cyclic hexamer

S Kobayashi, R Nakazono, R Okada… - Bulletin of the …, 2024 - academic.oup.com
Abstract A new chiral macrocycle 1-[6], consisting of six chiral spirobifluorene units linked in
a cyclic arrangement, was successfully synthesized via a homo-coupling of the …