Претраживање
Приказ резултата 21-30 од 32
An improved AMBER force field for alpha,alpha-dialkylated peptides: intrinsic and solvent-induced conformational preferences of model systems
(Royal Soc Chemistry, Cambridge, 2013)
alpha,alpha-Dialkylated amino acid residues have acquired considerable importance as effective means for introducing backbone conformation constraints in synthetic peptides. The prototype of such a class of residues, namely ...
in/out Isomerism of cyclophanes: a theoretical account of 2,6,15-trithia-[3(4,10)][7]metacyclophane and [3(4,10)][7]metacyclophane as well as their halogen substituted analogues
(Royal Soc Chemistry, Cambridge, 2017)
A detailed theoretical investigation of cyclophanes with a divergent set of methods ranging from molecular mechanics through semiempirical to ab initio is presented. Cyclophanes have attracted interest over the years due ...
Chain length, temperature and solvent effects on the structural properties of alpha-aminoisobutyric acid homooligopeptides
(Royal Soc Chemistry, Cambridge, 2016)
Non-coded alpha-amino acids, originally exploited by nature, have been successfully reproduced by recent synthetic strategies to confer special structural and functional properties to small peptides. The most known and ...
Does aromaticity account for an enhanced thermodynamic stability? The case of monosubstituted azaborines and the stereoelectronic chameleonism of the NH2 group
(Royal Society of Chemistry (RSC), 2019)
This work was initiated by the increasing interest in BN/CC isosterism and by the long-lasting interest in the concepts of aromaticity and substituent effects. We have theoretically examined the aromaticity and stability ...
Does aromaticity account for an enhanced thermodynamic stability? The case of monosubstituted azaborines and the stereoelectronic chameleonism of the NH2 group
(Royal Society of Chemistry (RSC), 2019)
This work was initiated by the increasing interest in BN/CC isosterism and by the long-lasting interest in the concepts of aromaticity and substituent effects. We have theoretically examined the aromaticity and stability ...
The effect of two types of dibenzoannulation of pentalene on molecular energies and magnetically induced currents
(Royal Society of Chemistry, 2019)
The effect of two types of dibenzo-fusion of pentalene in the singlet and triplet states on its molecular energies and magnetically induced ring currents was examined via density functional calculations. The isomerization ...
The effect of two types of dibenzoannulation of pentalene on molecular energies and magnetically induced currents
(Royal Society of Chemistry, 2019)
The effect of two types of dibenzo-fusion of pentalene in the singlet and triplet states on its molecular energies and magnetically induced ring currents was examined via density functional calculations. The isomerization ...
Computational study of the spin-state energies and UV-Vis spectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations
(Royal Soc Chemistry, Cambridge, 2013)
We report here computed spin-state energies and UV-Vis spectra for several transition metal complexes with a triazacyclononane ligand. Our results show that the spin ground-state is correctly obtained with either OPBE or ...
A density functional study of the spin state energetics of polypyrazolylborato complexes of first-row transition metals
(Royal Soc Chemistry, Cambridge, 2014)
Density Functional Theory (DFT) was used to analyse and explain spin state energetics of first-row transition metals (Mn-II, Fe-II, Co-II; Cr-III, Mn-III, Fe-III, Co-III; Mn-IV) in polypyrazolylborato complexes. We explored ...
Computational study of the spin-state energies and UV-Vis spectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations
(Royal Soc Chemistry, Cambridge, 2013)
We report here computed spin-state energies and UV-Vis spectra for several transition metal complexes with a triazacyclononane ligand. Our results show that the spin ground-state is correctly obtained with either OPBE or ...