
IndraLab
Statements
sparser
"They demonstrated that the overestimation by 0.5 eV (in respect to the experimental data) of the transition energy for the relevant TPA state in [5,15-bis(3,5-bitert-butylphenyl)-10,20-bis(trihexylsilylethynyl)porphyrinato]zinc by B3LYP led to a 5-fold overprediction of the TPA cross-section for this molecule, whereas for 5,5′-(ethyne)bis[[10,20-bis(3,5-bitert- butylphenyl)-porphyrinato]zinc], underestimation of the transition energy by 0.5 eV with CAM-B3LYP and by 0.8 eV with B3LYP lead to underestimations of the TPA cross-section by factors of 2 and 4, respectively [ xref ]."
| PMC
sparser
"The anodic limit of the 27 anions was calculated by means of Equations (1) and (2) using different DFT functionals with different levels of complexity in a vacuum: B3LYP (Global Hybrid Generalized Gradient Approximation, GH-GGA), ωB87X-D and CAM-B3LYP (Range-Separated Hybrid Generalized Gradient Approximation, RSH-GGA), M11-L and BMK (meta-Generalized Gradient Approximation, mGGA), M06-2X and M08-HX (Global Hybrid meta-Generalized Gradient Approximation, GH-mGGA), MN-12SX, M11, ωB87M-V (Range-Separated Hybrid meta-Generalized Gradient Approximation, RSH-mGGA)."
sparser
"It is worth noting how the B3LYP shows the largest errors (∼ −0.2 eV), while TD‐CAM‐B3LYP/6‐31++G(d,p)/C‐PCM provides the best match also with the experiment (in addition to be, CAM‐B3LYP, the best match in the same conditions with the reference level as shown before), with a blue shift of less than 0.1 eV."
sparser
"This is motivated by the presence of the CAM‐B3LYP functional, as reported previously is the recommended functional for describing CT electronic excitations by the presence of a more complete basis set, with the introduction of the diffuse functions, that increases the accuracy of the results and by the presence of the solvent to reproduce the experimental conditions."
sparser
"To gauge the accuracy of the TD‐DFT/C‐PCM combined potential and to perform the best choice for our study, we tested the performance of the B3LYP and the CAM‐B3LYP density functionals with both the LR and SS C‐PCM formalisms starting from the optimized geometry of the stable isomer computed at B3LYP/6‐31G(d,p)/C‐PCM cyclohexane level of theory."
sparser
"For Fe–Fe/Mo–Fe distances,
CAM-B3LYP gives worse deviations for both spin-coupled (and diamagnetic
complexes) than its parent B3LYP functional with MD = +0.061 Å
(MAD 0.067 Å) and the recent ωB97M-D3BJ functional (found
to be highly accurate for main group thermochemistry) xref , xref offers no improvement either, with MD of +0.067 Å (MAD = 0.067
Å)."
sparser
"The effects of multiple substitutions on the electride characteristics and the second-order NLO properties ( β 0 ) of Li@calix[4]pyrrole (1) and its analogues (octafluorine-1, octamethoxy-1 and tetra-lithium-1) were theoretically studied at the CAM-B3LYP and MP2 levels of theory."
sparser
"Atomic charges based on Hirshfeld charges, Fukui functions (), Mulliken and Natural population analysis (NPA) for BFDP molecule sites using CAM−B3LYP at 6−311G++(d,p) level were presented in xref Considering the terms mentioned previously, the relatively higher degree of reactivity descriptors () found around the O1 atom indicates the highest potential for nucleophilic attack at this particular location."
sparser
"According to the Hirshfeld, Mulliken and natural population analysis charges, F1, F2, N1 and O1 atoms display significant negative atomic loads in the crystalline compound having the following amounts of CAM-B3LYP functional values: 0.1019, −0.1019, −0.0712 and −0.2607/−0.1789, −0.1784, 0.2055 and −0.2330/−0.3575, −0.3574, −0.6929 and −0.5593, respectively."
sparser
"The β HRS values (×10 −30 esu) of helicenes H1–H14 are calculated by using CAM-B3LYP functionals associated with the 6-31+G(d) basis set and the β HRS values (×10 −30 esu) of helicenes H15–H28 are calculated by using CAM-B3LYP associated with the 6-31+G(d) for O, N, C and H atoms and LANL2DZ basis set for Se atom."
sparser
"Our main result is the identification of two cost‐effective theory levels: one for the ground state, using the B3LYP functional with the 6‐31G(d,p) basis set and the conductor‐like polarizable continuum model for solvation, and another for the excited states, employing the Coulomb‐Attenuating Method version (CAM‐B3LYP) functional with the double‐ζsplit‐valence basis set with polarization and diffuse functions and the linear response C‐PCM solvation model."
sparser
"This observation is also validated
by examining R 2 values (0.9931 for TD-B3LYP,
0.9906 for TD-M06-2X, 0.9909 for PBEPBE, 0.9915 for BMK, 0.9936 for
wB97XD, 0.9935 for CAM-B3LYP, and 0.9928 for CIS) calculated for correlation
of the calculated excited-state frequencies with those of the experiment."
sparser
"Although the CAM-B3LYP and B3LYP spectra of Acebutolol are similar (Fig. S6 xref ), the CAM-B3LYP spectrum has the primary bands at shorter wavelengths (219 (H−3 → L/H → L+1) and 304 nm (H → L)). xref , shows the computed B3LYP electronic spectrum of Acebutolol, the descriptions and energies of selected frontiers molecular orbitals."
sparser
"Definitionally, softness is the hardness ( η = ( I − A )/2) reciprocal. xref The energy reduction brought about by the maximum electron flow between the donor and acceptor is measured by the electrophilicity index, ω = (− χ 2 /2 η ). xref Natural bonding orbitals (NBO) analysis of Weinhold and co-workers were carried out at the same level of theory of the optimization process xref Time-dependent density functional theory (TDDFT) computations were carried out utilizing two distinct level of theories; B3LYP xref /6-31G(d) and a Coulomb-attenuated hybrid exchange-correlation functional, CAM-B3LYP xref /6-31G(d), with PCM solvation model."
sparser
"What is even more puzzling, though, is that the CBDE radical anion (which, as a 3-electron 4-center system must host the Jahn–Teller effect in D 4h geometry) is computed by some DFT methods (e.g., CAM-B3LYP with either 6-31G(d,p) or cc-pVDZ basis set) to be an undistorted square."
sparser
"Previous studies also have shown that the B3LYP functional overestimates β HRS. xref and the CAM-B3LYP functional combined with 6-31+G(d) basis set is a reliable method to calculate β HRS . xref Thus, the β HRS values obtained by CAM-B3LYP/6-31+G(d) level functional were used for further analysis."
sparser
"Ground-state geometry optimization and harmonic frequency analysis of the complexes were executed using B3LYP (ref. xref ) functional and the effective core potential (ECP) of the Hady and Wadt, LANL2DZ basis set. xref In the singlet state, TDDFT calculations were performed at CAM-B3LYP (ref. xref )/LANL2DZ level of theory and the PCM keyword to introduce the effect of the solvent."
sparser
"The time-dependent density functional theory (TD-DFT) calculations were investigated with the CAM-B3LYP functional [ xref ] since it gives rise to more reliable results compared to pure B3LYP on the nature of electronic transitions spectra to get further insights into the electronic absorption of T-705–nanocage complexes in the gas and aqueous phases."
sparser
"The AEA value is the energy difference between the
global minimal configurations of neutral and anion, and the VDE value
is the energy difference between the anionic global minimal configuration
of neutral and anionThe VDE and AEA computed at PBE0, B3LYP, and
CAM-B3LYP functionals, and experimentally measured values are presented
in xref ."
sparser
"At the same
time, UV–vis spectra were calculated using TDDFT with PBE,
PBE0, B3LYP, and CAM-B3LYP functionals, in order to analyze the transitions
in 120 excited states, which are enough to describe the characteristics.shows that the strongest absorption
bands are situated in the near-ultraviolet regions."
sparser
"In the singlet
excited states Kim, Nakano, Yamago, and co-workers recently revealed
rapid interconversion between self-trapped exciton and delocalized
states, xref yet it has earlier been found
through time-dependent CAM-B3LYP calculations that the S 1 state of [ n ]CPP ’s
is more delocalized than the T 1 state. xref Similar observations in the T 1 state of various [ n ]CPP ’s could give experimental
support as to which functional gives the right description: UB3LYP
or UCAM-B3LYP?"
sparser
"The rate-determining
step can be either the bond rotation or the proton transfer, depending
on the rotating bond and the meso -substituents. xref , xref For this particular switch, several density functionals were benchmarked
against CCSD(T)/6-31G data, concluding that both CAM-B3LYP and M05-2X
provide the most reliable results. xref Besides
the Hückel–Möbius interconversion, we also considered
the switching from 28M to 28F with the associated
transition state ( 28TS 3 ), as
shown in."
sparser
"Range-separated
hybrid functionals show significantly poorer performance
compared to the meta -GGA hybrids, except for CAM-B3LYP-D3
(RMSD = 1.8 kcal mol –1 ), as pointed out in previous
benchmark studies on expanded porphyrins. xref , xref We recently proved that M06-2X and CAM-B3LYP exhibit very similar
degrees of π-electron delocalization in expanded porphyrins. xref Disappointingly, the promising range-separated
hybrid ωB97M-V with nonlocal correlation, xref designed using a combinatorial approach and containing
only 12 parameters, clearly underperforms the older ωB97XD for
topology interconversions in expanded porphyrins."