sanya
sanya@photonics.ru
It's easy: add ECP=READ in $CONTRL group, put basis set after each atom in $DATA group (don't forget to add a blank line between the basis and the next atom), and add $ECP group with lines like
$ECP
EU-ECP GEN 53 4
1 ----- G POTENTIAL -----
0.000000 2 1.000000
2 ----- S-G POTENTIAL -----
172.797896 2 5.185200
-10.092260 2 2.592600
2 ----- P-G POTENTIAL -----
111.315027 2 4.358800
-3.402558 2 2.179400
2 ----- D-G POTENTIAL -----
41.867729 2 2.890200
-1.287433 2 1.445100
1 ----- F-G POTENTIAL -----
-63.601050 2 5.398800
without blank lines between atoms. Don't forget to add $END in the end of the group. If some atoms have no ECPs, the corresponding lines look like
O NONE
H NONE