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Can't freeze multiple bond lengths in GAMESS-US. Any ideas as to why?

Mr. Cho
jkurian770@gmail.com


I am trying to freeze the bond distance/length between atoms for (16,28), (5,16), and (5,41). When I try to use ifzmat and fvalue, only the constraint between atoms (16,28) is applied, while the other two are ignored. Could anyone tell me how to fix this?
I have the following input file:

$BASIS GBASIS=PM3 $END
$CONTRL SCFTYP=RHF RUNTYP=OPTIMIZE ICHARG=-1 MULT=1 ISPHER=1 $END
$STATPT NSTEP=100 OPTTOL=0.0003 hssend=.t. $END
$FORCE nvib=2 $END
$ZMAT DLC=.T. auto=.t. NONVDW(1)=33,39, 4,30, 4,39, 27,20, 7,35,
26,16, 7,35, 25,20, 5,16, 16,28, 5,41 $END
$ZMAT DLC=.T. auto=.t. IFREEZ(1)=1,5,41 fvalue(1)=2.00 $END
$ZMAT DLC=.T. auto=.t. IFREEZ(1)=1,5,16 fvalue(1)=1.40 $END
$ZMAT DLC=.T. auto=.t. IFREEZ(1)=1,16,28 fvalue(1)=1.40 $END
$CONTRL nzvar=0 $END
$DATA
Title
C1
C 6.0 33.53880 40.81519 80.3086
.
.
.
$END

[ This message was edited on Wed Sep 23 '15 at 0:11am by the author ]


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