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Conical intersection search with multi-states average

Anne Le
tuc59193@temple.edu


Dear Firefly Users,

This is my first time running MCSCF calculation with Firefly. I am optimizing for a conical intersection between the ground state (S0) and the first excited state (S1) with five states in the average. This is my input,

INPUT CARD> $CONTRL SCFTYP=MCSCF RUNTYP=optimize inttyp=hondo
INPUT CARD>    icut=12 d5=.true. nzvar=1 $END
INPUT CARD> $SYSTEM MWORDS=200 nojac=1 kdiag=0  $END
INPUT CARD> $moorth nostf=1 nozero=1 tole=0 tolz=0 syms=1 symden=1 symvec=1 $end
INPUT CARD> $BASIS EXTFIL=.t. gbasis=cc-pvdz $END
INPUT CARD> $GUESS GUESS=MOREAD NORB=189 $END
INPUT CARD> $trans altpar=.t. mptran=2 dirtrf=.t. mode=112 $end
INPUT CARD> $DRT NMCC=32 NDOC=7 NVAL=4 GROUP=C1 FORS=.t. $END
INPUT CARD> $GUGDIA NSTATE=11 ITERMX=300 cvgtol=1d-7 memmax=999999 $end
INPUT CARD> $GUGDM2 cutoff=1d-12 WSTATE(1)=1,1,1,1,1 $end
INPUT CARD> $GUGEM  CUTOFF=1.0D-15 $END
INPUT CARD> $MCSCF CISTEP=GUGA soscf=.t. fullnr=.f. ISTATE=1 acurcy=3d-8
INPUT CARD>    ENGTOL=1.0d-12 maxit=250 $END
INPUT CARD> $mcaver target=pure jstate=2 conic=2 multiw=.t. $end
INPUT CARD> $statpt method=conic nstep=1000 $end
INPUT CARD> $conic shift=1.0E-4 $end
INPUT CARD> $data
INPUT CARD>conical search for pc_sofa
INPUT CARD>C1
INPUT CARD>C     6.0     3.34565997    -0.14160000    -0.07642000
INPUT CARD>H     1.0     1.96000004    -0.28766999     1.53061998
INPUT CARD>C     6.0     1.88378000     0.87823999    -1.43701005
INPUT CARD>C     6.0     3.23283005     0.37110999    -1.32635999
INPUT CARD>C     6.0     0.85118002     0.98475999    -2.47463012
INPUT CARD>H     1.0     1.09862006     1.20088005    -3.50523996
INPUT CARD>N     7.0    -0.33440000     0.21582000    -2.32835007
INPUT CARD>O     8.0    -1.62452996    -0.79584998    -0.71752000
INPUT CARD>H     1.0    -0.54900998    -0.49006999    -3.00898004
INPUT CARD>C     6.0     4.36014986    -0.72294998     0.65132999
INPUT CARD>H     1.0     4.84456015    -1.55017996     0.03438000
INPUT CARD>H     1.0     3.93372011    -1.16517997     1.61162996
INPUT CARD>H     1.0     5.14190006     0.06531000     0.91036999
INPUT CARD>H     1.0     4.03015995     0.44310001    -2.04832006
INPUT CARD>N     7.0     2.13144994    -0.03258000     0.58301002
INPUT CARD>C     6.0     1.29933000     0.67783999    -0.21716000
INPUT CARD>N     7.0    -0.08823000     0.88062000    -0.21032000
INPUT CARD>C     6.0    -0.76103002    -0.03120000    -1.03929996
INPUT CARD> $END
INPUT CARD> $VEC
INPUT CARD> 1  1-3.06278831E-05-5.48793857E-05 2.59810829E-04 1.41265811E-05-9.66989194E-06

The calculation stops after step 8 with the following error message, DAVIDSON DIAGONALIZATION DID NOT CONVERGE IN  300 ITERATIONS.  BYEBYE.

Could anyone tell me what I am doing wrong? Is it possible to average five states?

Thank you,

Anna Le

This message contains the 1160 kb attachment
[ pcSofaCIsearch ] MCSCF calculation output


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