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***COplus_potential
memory,100,m;
symmetry,x,y
geometry={c;o,c,r(i)}

!basis=aug-cc-pV5Z
basis=AVQZ
!basis=cc-pVQZ

distances=[1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6,2.65,2.7,2.75,2.8,2.9,3.0,3.2,3.4,3.6,3.8,3.9,4.0,4.2,4.6,5.0,5.5,6.0]
do i=1,#distances
r(i)=distances(i)

{hf;wf,13,1,1;}

{casscf; ! do casscf calculaion
orbital,ignore_error;
OCC,7,2,2,0; ! specify occupied space
!CLOSED,0,0,0,0; ! specify closed-shell (inactive) orbitals
FROZEN,2,0,0,0; ! specify Frozen core orbitals
WF,13,1,1;state,3;lquant,0,0,0; ! specifies number of electrons, point group symmetry and spin
WF,13,2,1;state,2;lquant,1,1;
} ! define wavefunction symmetry


{mrci;
orbital,ignore_error;
maxiter,100,100;
occ,7,2,2,0;core,2,0,0,0;
wf,13,1,1;state,6;}
sE1(i)=energy(1);
sE2(i)=energy(2);
sE3(i)=energy(3);
sE4(i)=energy(4);
sE5(i)=energy(5);
sE6(i)=energy(6);

enddo

{table,r,sE1,sE2,sE3,sE4,sE5,sE6
head,r,sE1,sE2,sE3,sE4,sE5,sE6
save,co+_pes.tab
title,MRCI PES Results for CO+, basis $basis
}

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luqing6879

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1) lquant most time does not work. Just give it up.
2) The states with same symmetry should not cross. Get confused of your above descriptions.
3) You may try to calculate the energies of the Delta state in symmetry 4, rather than symmetry 1, since they are degenerate.
cishan.goodweb.cn/´ÈÉÆµã»÷£¬µãµÎ°ïÖú¡£
9Â¥2016-01-05 06:07:17
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ideallzc

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ÒýÓûØÌû:
9Â¥: Originally posted by luqing6879 at 2016-01-05 06:07:17
1) lquant most time does not work. Just give it up.
2) The states with same symmetry should not cross. Get confused of your above descriptions.
3) You may try to calculate the energies of the Delta ...

ȷʵ£¬Í¬Ò»¸ösymmetryÊÆÄÜÇúÏß²»Ïë½»£¬ÎÒµÄÄ¿µÄÊÇÖ»Ïë¼ÆË㦲+ state£¬ËùÒÔÎÒÓÃsymmetry 1£¨A1£©£¬µ«ÊǼÆËãÖлáÓÐDelta state, ÎÒÏëÖªµÀÓÐûÓÐʲô·½·¨ÔÚ¼ÆËãÊÆÄÜÇúÏßʱ È¥µôDelta state¡£ ¶øÇÒ£¬¾ÝÎÒËùÖª£¬ÔÚC2vÏ£¬symmetry 4 ´ú±íA2£¬Ó¦¸Ã¶ÔÓ¦µÄÊǦ²- state£¬ Delta Ó¦¸ÃÊǶÔÓ¦A1+A2¡£
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