%mem=1gb
%nproc=4
%chk=temp.chk
#t b3lyp/6-31g* opt=(gdiis,loose)

oxalate_3509

0 1
C 0.8323 0.3557 0.0000
O 1.4825 -0.6844 -0.0000
O 1.4886 1.3877 -0.0000
C -0.5184 0.3637 0.0000
O -1.1594 1.4054 0.0000
O -1.1619 -0.6817 -0.0000
H 1.0785 -1.4673 0.0000
H -2.0421 -0.6790 -0.0000

--link1--
%mem=1gb
%nproc=4
%chk=temp.chk
#t pbe1pbe/3-21g** guess=read geom=checkpoint nmr

oxalate_3509

0 1