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[求助]
molpro 結(jié)構(gòu)優(yōu)化CCSD不收斂,求指教
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三原子閉殼層體系,直線型結(jié)構(gòu),做CCSD結(jié)構(gòu)優(yōu)化,直接輸入的基組和ECP 結(jié)果的部分輸出: PROGRAM * OPT (Geometry optimization) Authors: F. Eckert and H.-J. Werner BFGS update of hessian *** Long output written to logfile /home/yangdd/molpro.calc/un2/un2.log *** Geometry optimization using default procedure for command CCSD Geometry written to block 1 of record 700 Generated 1 symmetrical displacements Number of displacements for numerical gradient: 2 Starting numerical gradient for CCSD ? Error ? No convergence. This error exit can be avoided using the NOCHECK option ? The problem occurs in ccsd GLOBAL ERROR fehler on processor 0 我指定了占據(jù),還是出現(xiàn)同樣的錯誤,加了nocheck,也是提示上面的錯誤 |


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