%mem=1gb
%nproc=10
%chk=temp.chk
#t b3lyp/6-31g* opt=(gdiis,loose)

Oxalosuccinate_7753

0 1
O -1.2113 2.1059 -1.8091
O 2.7556 -1.3344 -0.6356
O -0.7477 -0.9798 2.8975
O -1.4226 2.3671 0.2163
O 0.8852 -2.2125 -0.7099
O -0.2999 0.9456 2.3358
O -1.8793 -1.3680 0.5657
C -0.6113 0.2490 -0.4911
C 0.9447 0.1459 -0.6306
C -1.0990 1.6140 -0.6898
C 1.5404 -1.1820 -0.6584
C -0.7256 -0.1486 1.9951
C -1.1048 -0.4304 0.7191
H -1.0172 1.6438 -2.5326
H 3.2994 -0.6445 -0.5894
H -0.9738 -1.8145 2.7393
H -1.0034 -0.2981 -1.3584
H 1.2621 0.6395 -1.5534
H 1.4083 0.7018 0.1895

--link1--
%mem=1gb
%nproc=10
%chk=temp.chk
#t pbe1pbe/3-21g** guess=read geom=checkpoint nmr

Oxalosuccinate_7753

0 1