Censorc keyword definitions
$GENERAL SETTINGS:
keyword:
definition:
nconf
how many conformers should be considered. Either a number or the flag 'all'.
charge
molecular charge of the molecule under investigation.
unpaired
number of unpaired electrons in the molecule under investigation.
solvent
Solvent if the molecule is in solution phase, else gas
.
​prog_rrho
QM-code used for the calculation of thermostatistical contributions. This is only feasible with xtb, since normally a large number of hessian calculations have to be performed.
temperature
Temperature (in Kelvin) used for the Boltzmann evaluations.
trange
temperature range which is used to calculate free energies at different temperatures (considered in G_mRRHO and dG_solv[only COSMO-RS]). The temperature range will only be evaluated if multitemp is set to on
.
multitemp
Evaluate free energies at different temperatures defined in trange.
evaluate_rrho
Option to consider /not consider thermostatistical contributions.
consider_sym
Option to consider symmetry in the thermostatistical contribution (only xtb)
bhess
Calculate single point hessians (SPH) on the geometry, instead of "ohess" (optimization + hessian calculation).
imagthr
threshold for inverting imaginary frequencies for thermostatistical contributions (in cm-1). Internal defaults are applied if set to 'automatic'.
sthr
rotor cut-off (cm-1) used for the thermostatical contributions. Internal defaults are applied if set to 'automatic'.
scale
scaling factor for frequencies in vibrational partition function. Internal defaults are applied if set to 'automatic'.
rmsdbias
gESC related, using rmsdpot.xyz to be consistent to CREST
sm_rrho
solvent model applied in the GFNn-xTB thermostatistical contribution calculation.
check
Terminate the CENSO run if too many calculations crash.
prog
QM code used for part0, part1 and part2, this can be TURBOMOLE or ORCA.
func
functional used in part1 (prescreening) and part2 (optimization)
basis
basis set used in combination with func in part1 (prescreening) and part2 (optimization). If basis is set to 'automatic' the basis set is chosen internally.
maxthreads
Used for parallel calculation. Maxthreads determines the number of independent calculations running in parallel. E.g. resulting in 4 independent single-point /optimization calculations.
omp
Used for parallel calculation. Omp determines the number of cores each independent calculation can use. Eg. maxthreads = 4 and omp = 5 resulting in 4 independent calculations and each independent calculation uses 5 cores.
cosmorsparam
Flag for choosing COSMO-RS parameterizations. If set to 'automatic' the input from the COSMO-RS input line is chosen.
$PART0 - CHEAP-PRESCREENING - SETTINGS:
keyword:
definition:
part0
Option to turn the "cheap prescreening part" on or off.
func0
Functional used in part0.
basis0
Basis set used in combination with func0. If basis0 is set to 'automatic' the basis set is chosen internally.
part0_gfnv
GFN version employed in the thermostatistical contribution in part0.
part0_threshold
Threshold/Energy-window (kcal/mol) within which all conformers are considered.
$PART1 - PRESCREENING - SETTINGS:
keyword:
definition:
part1
Option to turn the "prescreening part" on or off.
smgsolv1
Additive solvation contribution employed in part1.
part1_gfnv
GFN version employed in the thermostatistical contribution in part1.
part1_threshold
Threshold/Energy-window (kcal/mol) within which all conformers are considered further.
$PART2 - OPTIMIZATION - SETTINGS:
keywords:
definition:
part2
Option to turn the "optimization part" on or off.
opt_limit
Threshold/Energy-window (kcal/mol) within which all conformers are fully optimized.
sm2
Implicit solvation model used in the optimization. (for the imiplicit effect on the geometry)
smgsolv2
Additive solvation model used for calculation of δG_solv in part2. (used to calculate contribution to free energy)
part2_gfnv
GFN version employed in the thermostatistical (G_mRRHO) contribution in part2.
ancopt
Using ANCoptimizer implemented in xTB for geometry optimization.
hlow
Lowest force constant in ANC generation, used with ancopt.
opt_spearman
Using the new "ensemble-optimizer".
part2_threshold
Boltzmann threshold in % within which all conformers are considered further.
E.g. 90 --> all conformers up to a sum of 90 % are considered.
optlevel2
Optimization threshold in the geometry optimization. If set to "automatic", internal defaults will be used.
optcycles
Number of optimization iterations performed within one cycle in the ensemble optimizer.
spearmanthr
Spearman rank correlation coeff. used to determine if PES during geometry optimization can be assumed parallel.
radsize
Setting of the radial grid size for func used in part2.
crestcheck
Automatically sort out conformers which might have become identical or rotamers during DFT geometry optimization. Check is performed using CREST (this is threshold based, so use with care).
$PART3 - REFINEMENT - SETTINGS:
keywords:
definitions:
part3
Option to turn the "refinement part" on or off.
prog3
QM code used for part3 this can be TURBOMOLE or ORCA.
func3
functional used in part3 (refinement)
basis3
basis set employed in combination with func3.
If basis3 is set to 'automatic' the basis set is chosen internally.
smgsolv3
Additive solvation model used for calculation of δG_solv in part3.
part3_gfnv
GFN version employed in the thermostatistical contribution in part3.
part3_threshold
Boltzmann threshold in % within which all conformers are considered further.
E.g. 90 --> all conformers up to a sum of 90 % are considered.
$PART4 SETTINGS:
keywords:
definitions:
part4
Option to turn the "NMR property part" on or off.
couplings
Perform coupling constant calculations [options are on or off].
progJ
QM code (TM, ORCA) used for coupling constant calculations.
funcJ
Density functional employed for the coupling constant calculation.
basisJ
basis set employed with the DFA (funcJ) for coupling constant calculations.
sm4J
implicit solvent model employed in the coupling constant calculation.
shieldings
Perform shielding constant calculations [options are on or off].
progS
QM code (TM, ORCA) used for shielding constant calculations.
funcS
Density functional employed for the shielding constant calculation.
basisS
basis set employed with the DFA (funcS) for shielding constant calculations.
sm4S
implicit solvent model employed in the shielding constant calculation.
reference_1H
Reference molecule to convert 1H shielding constants to shifts e.g. TMS.
reference_13C
Reference molecule to convert 13C shielding constants to shifts e.g. TMS.
reference_19F
Reference molecule to convert 19F shielding constants to shifts e.g. CFCl3.
reference_29Si
Reference molecule to convert 29Si shielding constants to shifts e.g. TMS.
reference_31P
Reference molecule to convert 31P shielding constants to shifts e.g. TMP.
1H_active
Calculate 1H NMR properties [options are on or off].
13C_active
Calculate 13C NMR properties [options are on or off].
19F_active
Calculate 19F NMR properties [options are on or off].
29Si_active
Calculate 29Si NMR properties [options are on or off].
31P_active
Calculate 31P NMR properties [options are on or off].
resonance_frequency
Resonance frequency of the experimental spectrometer (in Hz).
$OPTICAL ROTATION PROPERTY SETTINGS:
keywords:
definitions:
optical_rotation
Option to turn the "OR property part" on or off.
funcOR
Functional employed to calculate the optical rotatory (OR) dispersion.
funcOR_SCF
Functional to generate converged MOs.
basisOR
Basis set employed for the OR calculation.
frequency_optical_rot
List of frequencies in nm to evaluate OR at e.g. [589.0].
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