Quantum mechanical computations and spectroscopy: From small rigid molecules in the gas phase to large flexible molecules in solution

V Barone, R Improta, N Rega - Accounts of Chemical Research, 2008 - ACS Publications
Interpretation of structural properties and dynamic behavior of molecules in solution is of
fundamental importance to understand their stability, chemical reactivity, and catalytic action …

The spin label amino acid TOAC and its uses in studies of peptides: chemical, physicochemical, spectroscopic, and conformational aspects

S Schreier, JC Bozelli, N Marín, RFF Vieira… - Biophysical …, 2012 - Springer
We review work on the paramagnetic amino acid 2, 2, 6, 6-tetramethyl-N-oxyl-4-amino-4-
carboxylic acid, TOAC, and its applications in studies of peptides and peptide synthesis …

Structural dynamics of bio-macromolecules by NMR: The slowly relaxing local structure approach

E Meirovitch, YE Shapiro, A Polimeno… - Progress in nuclear …, 2010 - Elsevier
Protein dynamics by NMR has been reviewed extensively in recent years [1–10]. These
surveys show decisively that information on structure should be complemented by …

Immersive virtual reality in computational chemistry: Applications to the analysis of QM and MM data

A Salvadori, G Del Frate, M Pagliai… - … journal of quantum …, 2016 - Wiley Online Library
Abstract The role of Virtual Reality (VR) tools in molecular sciences is analyzed in this
contribution through the presentation of the Caffeine software to the quantum chemistry …

Crystallographic characterization of helical secondary structures in α/β-peptides with 1: 1 residue alternation

SH Choi, IA Guzei, LC Spencer… - Journal of the American …, 2008 - ACS Publications
Oligomers that contain both α-and β-amino acid residues in a 1: 1 alternating pattern have
recently been shown by several groups to adopt helical secondary structures in solution …

Extension of the AMBER force-field for the study of large nitroxides in condensed phases: an ab initio parameterization

E Stendardo, A Pedone, P Cimino… - Physical Chemistry …, 2010 - pubs.rsc.org
The popular AMBER force-field has been extended to provide an accurate description of
large and flexible nitroxide free-radicals in condensed phases. New atom types have been …

Unraveling unidirectional threading of α-cyclodextrin in a [2] rotaxane through spin labeling approach

C Casati, P Franchi, R Pievo, E Mezzina… - Journal of the …, 2012 - ACS Publications
We present here the results of a CW-ESR investigation of a double spin labeled α-
cyclodextrin-based [2] rotaxane that is characterized by the presence of nitroxide labels both …

Validation of the B3LYP/N07D and PBE0/N07D Computational Models for the Calculation of Electronic g-Tensors

V Barone, P Cimino - Journal of Chemical Theory and …, 2009 - ACS Publications
Calculations on a large set of free radicals containing atoms of the second and third row
show that the computational model defined by the new N07D basis set and hybrid density …

Synthesis and conformational analysis of hydantoin-based universal peptidomimetics

AM Caramiello, MC Bellucci, G Cristina… - The Journal of …, 2022 - ACS Publications
The synthesis of a collection of enantiomerically pure, systematically substituted hydantoins
as structural privileged universal mimetic scaffolds is presented. It relies on a …

Spectroscopically orthogonal spin labels and distance measurements in biomolecules

M Yulikov - 2014 - books.rsc.org
Essential details of two techniques for distance measurements between non-identical spin
labels are summarized. One technique is based on double electron–electron resonance …