Combination of Resonance and Non-Resonance Chiral Raman Scattering in a Cobalt(III) Complex

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F23%3A43934151" target="_blank" >RIV/60461373:22330/23:43934151 - isvavai.cz</a>

Alternative codes found

RIV/61388963:_____/23:00576140 RIV/61989592:15310/23:73620131 RIV/60461373:22340/23:43934151

Result on the web

<a href="https://doi.org/10.1002/anie.202312521" target="_blank" >https://doi.org/10.1002/anie.202312521</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/anie.202312521" target="_blank" >10.1002/anie.202312521</a>

Result language

angličtina

Original language name

Combination of Resonance and Non-Resonance Chiral Raman Scattering in a Cobalt(III) Complex

Original language description

Resonance Raman optical activity (RROA) spectra with high sensitivity reveal details on molecular structure, chirality, and excited electronic properties. Despite the difficulty of the measurements, the recorded data for the Co(III) complex with S,S-N,N-ethylenediaminedisuccinic acid are of exceptional quality and, coupled with the theory, spectacularly document the molecular behavior in resonance. This includes a huge enhancement of the chiral scattering, contribution of the antisymmetric polarizabilities to the signal, and the Herzberg-Teller effect significantly shaping the spectra. The chiral component is by about one order of magnitude bigger than for an analogous aluminum complex. The band assignment and intensity profile were confirmed by simulations based on density functional and vibronic theories. The resonance was attributed to the S0 -&gt; S3 transition, with the strongest signal enhancement of Raman and ROA spectral bands below about 800 cm-1. For higher wavenumbers, other excited electronic states contribute to the scattering in a less resonant way. RROA spectroscopy thus appears as a unique tool to study the structure and electronic states of absorbing molecules in analytical chemistry, biology, and material science. Resonance Raman optical activity is becoming a useful tool to study geometry and electronic structure of molecules. For a cobalt complex we report large signal enhancement, unique resonance spectral pattern, and an advanced analysis based on vibrational functions of the ground and excited electronic state. For the first time, a dual circular polarization signal coming from asymmetric molecular polarizabilities was verified on enantiomers.image

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10400 - Chemical sciences

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Angewandte Chemie - International Edition

ISSN

1433-7851

e-ISSN

1521-3773

Volume of the periodical

62

Issue of the periodical within the volume

45

Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

nestránkováno

UT code for WoS article

001076654500001

EID of the result in the Scopus database

2-s2.0-85172882326