In:
Chemistry – A European Journal, Wiley, Vol. 24, No. 56 ( 2018-10-09), p. 15067-15079
Abstract:
Introducing one or two alkynyl–iron moieties onto a carbo[6]helicene results in organometallic helicenes ( 2 a , b ) that display strong chiroptical activity combined with efficient redox‐triggered switching. The neutral and oxidized forms have been studied in detail by electronic and vibrational circular dichroism, as well as by Raman optical activity (ROA) spectroscopy. The experimental results were analyzed and spectra were assigned with the help of first‐principles calculations. In particular, a recently developed method for ROA calculations under resonance conditions has been used to study the intricate resonance effects on the ROA spectrum of mono‐iron ethynylhelicene 2 a .
Type of Medium:
Online Resource
ISSN:
0947-6539
,
1521-3765
DOI:
10.1002/chem.201803069
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
1478547-X