[molpro-user] Basis set issue in SAPT

[Bun Chan]

Hi,

I ran two SAPT calculations where the only difference is in the basis 
set.  Somehow I got identical results from both jobs.  Is there anything 
wrong with my inputs?

Cheers,

Bun


Job 1:
***
Memory,100,M
geomtyp=xyz;
Geometry={nosym;noorient;
5

F1        1.117969   -0.568465   -0.384342
F2        1.662408    0.598679    0.258133
H1        0.000104   -0.535727   -0.001600
F3       -1.116391   -0.567823    0.385069
F4       -1.663998    0.597134   -0.258683
}
int,,cart;
set,charge=1;
basis=6-31G(d);

ca=2101.2;
cb=2102.2;

dummy,F3,F4;
set,charge=1;
{hf;
save,$ca}
sapt;monomerA

dummy,F1,F2,H1;
set,charge=0;
{hf;
save,$cb}
sapt;monomerB

sapt;intermol,ca=$ca,cb=$cb
---

Job 2:
***
Memory,100,M
geomtyp=xyz;
Geometry={nosym;noorient;
5

F1        1.117969   -0.568465   -0.384342
F2        1.662408    0.598679    0.258133
H1        0.000104   -0.535727   -0.001600
F3       -1.116391   -0.567823    0.385069
F4       -1.663998    0.597134   -0.258683
}
int,,cart;
set,charge=1;
basis=6-31+G(d,p);

ca=2101.2;
cb=2102.2;

dummy,F3,F4;
set,charge=1;
{hf;
save,$ca}
sapt;monomerA

dummy,F1,F2,H1;
set,charge=0;
{hf;
save,$cb}
sapt;monomerB

sapt;intermol,ca=$ca,cb=$cb
---