W1 Methods

DescriptionOptionsExamples Description These method keywords request the W1 methods of Martin [Martin99, Parthiban01]: The W1U keyword specifies the W1 method modified to use UCCSD instead of ROCCSD for open shell systems [Barnes09] (the ROCCSD method is that of...

ZIndo

DescriptionOptionsAvailabilityRelated Keywords Description This method keyword requests an excited state energy calculation using the ZIndo/S method [Ridley73, Ridley76, Bacon79, Zerner80, CorreaDeMello82, Anderson86, Hanson87, Thompson91, Zerner91]. Note that ZIndo...

Units

DescriptionOptionsRestrictions Description The Units keyword controls the units used in the Z-matrix for distances and angles and related values, such as step-sizes in numerical differentiation. The defaults are Angstroms and degrees. Options Ang Distances are in...

#

DescriptionAlternate Forms Description The route section of a Gaussian job is initiated by a pound sign (#) as the first non-blank character of a line. The remainder of the section is in free-field format. For most jobs, all of the information can be placed on this...

LSDA

Description Description This method keyword requests a Local Spin Density Approximation calculation, using the Slater exchange functional and the VWN correlation functional for the DFT calculation. It is equivalent to SVWN. Note that LSDA is not uniquely defined in...

GenChk

DescriptionExample Description This keyword is found in the second and later automatically generated job steps for compound calculation like Opt Freq. It serves to ensure that all basis set, ECP, and fitting set information (as applicable) is read from the checkpoint...