-
Chemissian currently supports Gaussian, US-Gamess, Firefly/PC-Gamess, Q-Chem,
Molpro (via molden format),
Turbomole (via molden format),
ORCA (via molden format), NWChem and Spartan output files. Below some
specific requirements for each supported program output files are presented.
common note: Use only single-point output files (i.e. without geometry optimization)
Notes to Gaussian users:
Make sure that your Gaussian input file looks like, e.g.:
"#P B3LYP/Lanl2dzpop=full GFInput"
#P option enables extended printout, pop=full enables printout of all molecular orbitals coefficients and GFInput keyword enables printout of basis set data.
(B3LYP/Lanl2dz are just method and basis set given, for example, you can use any other DFT(HF) method and basis set).
Chemissian uses molecular orbitals coefficients ("EIGENVALUES") section from Gaussian output file to build MO energy level diagrams, it is also needed to plot MOs or charge density maps and to describe TDDFT/CIS spectrum peak nature. To plot electron density maps basis set information is also needed. Therefore "GFInput" keyword should be included in the Gaussian input otherwise "Analyze electronic density" menu item will be disabled.
To visualize calculated TDDFT or CIS UV-VIS spectrum gaussian input file should contain:
#P
B3LYP/Lanl2DZTD(SINGLETS,NStates=45)Pop=Full gfinput IOp(9/40=7)
B3LYP is just some DFT-method and Lanl2DZ is just some basis (You may choose
any other method and basis). Chemissian uses data about molecular orbitals to
plot MO diagram, so "#P" and "pop=full" keywords are nessesary. (Later you
will also see transitions corresponding to the selected peak (in "Analyze
spectrum" window) of tddft-calculated spectrum on this diagram) Also if you
want to plot charge densities and MOs contour maps Chemissian need
information about basis set use "gfinput" keyword (and gaussian will print
basis set). And "TD" is a keyword to calculate spectrum which will be shown
when you load gaussian output into Chemissian.
If you use ONIOM feature of Gaussian then specify gfinput gfoldprint options in Gaussian input
Notes to Q-Chem users:
-
Notes to Spartan users:
Spartan 8:
Notes to Molpro users:
Specify in Q-Chem input file the following keywords in the $rem
section:
$rem
print_general_basis=true
print_orbitals=99999
$end
These keywords will force Q-Chem to print LCAO-MO matrix and basis set in its
output file.
Use "directory based filesystem" mode in the Spartan program (not .spartan
files).
To enable this mode, configure your Spartan in the following way:
1) Go to Options -> Preferences -> X-Platform
Select "Directory Based" as the Document Style
2) Go to Options -> Preferences -> Settings
Select "Keep Verbose" checkbox.
Spartan will create a directory for a calculation.
Spartan 14:
1) Go to Options -> Preferences -> Miscellaneous
Select "Directory Based" as the Document Style
In "Data Compression Options" uncheck "Gzip text files" and "Use binary archive"
2) Go to Options -> Preferences -> Settings
Select "Keep Verbose" checkbox.
Spartan will create a directory for a calculation.
When submitting job via Setup->Calculations:
Choose
-"Calculate: energy"
-"Print: Orbitals and energies; Charges and Bond Orders"
Now to load Spartan output you just need to click (in Chemissian) "File --> Open…" menu item and select (standard) "output" file. Chemissian will also try to load data from "voutput" file (number of electrons, UV-VIS spectrum) and from "archive" file (basis set data) from the directory where "output" file is located. If these files are missed in the directory (or have other names) Chemissian will ask you to input their location.
Use MOLDEN file generated by Molpro (see Molpro manual)
Notes to NWChem users:
-
Notes to Turbomole users:
There is a partial support of Turbomole files via MOLDEN format. To generate MOLDEN file you can use tm2molden utility that is a part of Turbomole package.
-
Notes to ORCA users:
There is a partial support of Orca files via MOLDEN format. To generate MOLDEN file one can use the following command
"orca_2mkl yourfile -molden",
where yourfile.gbw is generated by ORCA
(see ORCA manual for details)When you load a molden file generated by ORCA Chemissian will also ask for an additional (main) ORCA output file. If that file contains TD-DFT/CIS data Chemissian will load and display it.
Use print "final evals" "final vectors" option in scf-section of NWChem input file
E.g. correct SCF input should contain:
scf
print "final evals" "final vectors"
end
Correct DFT input should contain:
dft
print "final evals" "final vectors"
end
To get EOM-CCSD spectrum with oscillator strengths the dipole option should fe included in tce section of NWChem input.