Control Options

Keyword Parms? Keyword Description Page
AOINFO No Write AO basis information to LFN 31 B-9
ARCHIVE O Write ARCHIVE (FILE47) for stand-alone GENNBO input B-62
BNDIDX No NAO-Wiberg Bond Index and related valency indices B-29
BOAO Opt. Fock-Dirac density matrix ("Bond order matrix") B-11
DETAIL No Additional details of NBO search B-9
DIST No Atomic distance table B-9
FILE Yes Specify filestem for PLOT files and other I/O B-9
FIXDM No Correct unphysical occupancies of input density matrix B-11
LFNPR Yes Set logical file numer (LFN) for NBO program output B-9
MSPNBO No Maximum Spin-Paired NBOs (spin averaged density matrix) B-3
MULAT No Gross Mulliken populations, by atom B-11
MULORB No Gross Mulliken populations, by orbital and atom B-11
NBODAF Opt. Write NBO direct access file (DAF) to disk B-9
NOBOND No 1-center atomic hybrids (no 2-c NBO search) B-37
NRTCHG Yes Alter maximum formal charge for candidate NRT structures B-75
NRTDTL No Additional details of NRT search B-75
NRTFDM No Use full denisty matrix for multi-reference NRT B-75
NRTLST Yes Print leading $NRTSTR structure specifications B-75
NRTMEM Yes Specify maximum number of NRT reference structures B-75
NRTOPT Yes Specify alternate NRT optimization method B-76
NRTTHR Yes Specify delocalization threshold for NRT search B-75
NRTWGT Yes Alter weighting threshold for NRT reference structure B-75
PAOPNAO Opt. Read/write "pure" AO to PNAO transformation B-11
PLOT No Write files for orbital plotting B-9
PRINT Yes Heirarchical print control of NBO output B-10
PRJTHR Yes Alter projection threshold for NHO structure B-11
RPNAO No Revised "pure" AO (PAO) to PNAO transformation B-11
SKIPBO No Skip NBO search (NPA only for PRINT=1) B-3
SPARTAN No Write Spartan-type archive file B-11
3CBOND No Search for 3-center NBOs B-3
THRESH Yes Alter default occupancy for NBO search B-11

Additional parameters (such as numerical threshold values) are required for many of these keywords in the form KEY=parm; see the NBO 5.0 Manual for details.
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