gdirect ! integral-direct mode

basis={
default,aug-cc-pwCVQZ ! orbital basis
set,oep;default,aug-cc-pVDZ/mp2fit ! OEP basis
set,dfit;default,aug-cc-pwCV5Z/mp2fit ! density fitting basis
}

symmetry,nosym ! SCEXX does not use symmetry

angstrom
geometry={
2

C        0.000000    0.000000   -0.646514
O        0.000000    0.000000    0.484886
}

df-hf,maxit=0,df_basis=dfit ! HF calculation with 0 iteration
{cfit,basis_coul=dfit,basis_exch=dfit}

acfd;scexx,thr_fai_oep=1.7d-2 ! SCEXX calculation