Decoding chemical information from vibrational spectroscopy data: Local vibrational mode theory

E Kraka, W Zou, Y Tao - Wiley Interdisciplinary Reviews …, 2020 - Wiley Online Library
Modern vibrational spectroscopy is more than just an analytical tool. Information about the
electronic structure of a molecule, the strength of its bonds, and its conformational flexibility …

[BOOK][B] Chiroptical spectroscopy: fundamentals and applications

PL Polavarapu - 2016 - taylorfrancis.com
This book details chiroptical spectroscopic methods: electronic circular dichroism (ECD),
optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and vibrational …

Characterizing the Metal–Ligand Bond Strength via Vibrational Spectroscopy: The Metal–Ligand Electronic Parameter (MLEP)

E Kraka, M Freindorf - New Directions in the Modeling of Organometallic …, 2020 - Springer
The field of organometallic chemistry has tremendously grown over the past decades and
become an integral part of many areas of chemistry and beyond. Organometallic …

Relating normal vibrational modes to local vibrational modes with the help of an adiabatic connection scheme

W Zou, R Kalescky, E Kraka, D Cremer - The journal of chemical …, 2012 - pubs.aip.org
Information on the electronic structure of a molecule and its chemical bonds is encoded in
the molecular normal vibrational modes. However, normal vibrational modes result from a …

Generalization of the Tolman electronic parameter: the metal–ligand electronic parameter and the intrinsic strength of the metal–ligand bond

D Cremer, E Kraka - Dalton Transactions, 2017 - pubs.rsc.org
The catalytic activity of transition metal complexes (R) nM–L can be predicted utilizing the
metal–ligand electronic parameter (MLEP) that is based on the local stretching force …

Vibronic coupling explains the different shape of electronic circular dichroism and of circularly polarized luminescence spectra of hexahelicenes

Y Liu, J Cerezo, G Mazzeo, N Lin, X Zhao… - Journal of chemical …, 2016 - ACS Publications
We present the simulation of the absorption (ABS), electronic circular dichroism (ECD),
emission (EMI), and circularly polarized luminescence (CPL) spectra for the weak electronic …

Efficient calculation of anharmonic vibrational spectra of large molecules with localized modes

PT Panek, CR Jacob - ChemPhysChem, 2014 - Wiley Online Library
The analysis and interpretation of the vibrational spectra of complex (bio) molecular
systems, such as polypeptides and proteins, requires support from quantum‐chemical …

Quantitative assessment of the multiplicity of carbon–halogen bonds: carbenium and halonium ions with F, Cl, Br, and I

R Kalescky, W Zou, E Kraka… - The Journal of Physical …, 2014 - ACS Publications
CX (X= F, Cl, Br, I) and CE bonding (E= O, S, Se, Te) was investigated for a test set of 168
molecules using the local CX and CE stretching force constants ka calculated at the M06 …

MOVIPAC: Vibrational spectroscopy with a robust meta‐program for massively parallel standard and inverse calculations

T Weymuth, MP Haag, K Kiewisch… - Journal of …, 2012 - Wiley Online Library
We present the software package MoViPac for calculations of vibrational spectra, namely
infrared, Raman, and Raman Optical Activity (ROA) spectra, in a massively parallelized …

A local-mode model for understanding the dependence of the extended amide III vibrations on protein secondary structure

T Weymuth, CR Jacob, M Reiher - The Journal of Physical …, 2010 - ACS Publications
The extended amide III region in vibrational spectra of polypeptides and proteins is
particularly sensitive to changes in secondary structure. To investigate this structural …