Mulliken population analysis,while simple and mathematically elegant,often gives chemically unreasonable charges and erratic trends for large basis sets,especially if the basis sets include diffuse fu
The vibrational spectrums of both isolated and crystalized aniline and acetanilide molecules are investigated using DFT method.The vibrational spectrums of isolated acetanilide(ACN)molecular obtained
Double proton transfer in the formamidine-formic acid complex at room temperature has been investigated with ab initio path integral molecular dynamics(PIMD) simulations.
Photophysical behavior of Re(I) tricarbonyl diimine complexes strongly depends on the coordination sphere,variations of which control character of the lowest lying excited states and their relative en
Most of chemistry,focuses on molecular reactions,in which chemical bonds are broken and formed,which naturally leads to substantial multi-reference character of the electronic wavefunction.
A new internally contracted MRCI program has been recently implemented by our Xian-CI group based on Graphical Unitary Group Approach(GUGA) and hole-particle symmetry.
Localized molecular orbitals(LMO) not only serve as an important bridge between chemical intuition and molecular wave functions but also can be employed to reduce the computational cost of many-body m
The generalized energy-based fragmentation(GEBF) approach[1] has been implemented for the explicitly correlated second-order M(o)ller-Plesset perturbation theory F12(MP2-F12) method,coupled-cluster wi
An efficient implementation of the local excitation approximation(LEA) of timedependent density functional theory(TDDFT)or time-dependent Hartree-Fock,(TDHF)(or configuration interaction singles,CIS)