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讓你變成回憶木蟲(chóng) (小有名氣)
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[求助]
高斯09 ccsd計(jì)算單點(diǎn)能出現(xiàn)能量振蕩,
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小弟在用ccsd方法計(jì)算一個(gè)體系(體系一般不算很大)的單點(diǎn)能,選擇的基組較大,選的是aug-cc-pvdz,在計(jì)算完SCF后,出現(xiàn)了不收斂的問(wèn)題,我將收斂標(biāo)準(zhǔn)改為了SCF(CONVER=6)這樣能計(jì)算出需要的能量,這個(gè)值準(zhǔn)確么?我看到有人說(shuō)一般scf計(jì)算conver=6就可以了; 另外,在計(jì)算ccsd方法時(shí),當(dāng)iteration Nr 到默認(rèn)最大的50時(shí),還沒(méi)收斂,我改成了ccsd(maxcyc=200)計(jì)算后 仍然計(jì)算到200時(shí)還是不收斂, 對(duì)于ccsd計(jì)算出現(xiàn)不收斂應(yīng)該怎么解決呢? 收斂標(biāo)準(zhǔn)改為多少合適? 看了說(shuō)明書,但是感覺(jué)不是很清楚。請(qǐng)各位大神幫助! 這是我用grep命令查看log文件的能量值 DE(Corr)= -2.0055721 E(CORR)= -541.43415635 Delta=-5.48D-02 DE(Corr)= -2.0114485 E(CORR)= -541.44003280 Delta=-5.88D-03 DE(Corr)= -2.0165933 E(CORR)= -541.44517754 Delta=-5.14D-03 DE(Corr)= -2.0171844 E(CORR)= -541.44576866 Delta=-5.91D-04 DE(Corr)= -2.0175854 E(CORR)= -541.44616966 Delta=-4.01D-04 DE(Corr)= -2.0176548 E(CORR)= -541.44623906 Delta=-6.94D-05 DE(Corr)= -2.0177208 E(CORR)= -541.44630511 Delta=-6.60D-05 DE(Corr)= -2.0177449 E(CORR)= -541.44632916 Delta=-2.41D-05 DE(Corr)= -2.0177084 E(CORR)= -541.44629272 Delta= 3.64D-05 DE(Corr)= -2.0177151 E(CORR)= -541.44629940 Delta=-6.68D-06 DE(Corr)= -2.0177092 E(CORR)= -541.44629347 Delta= 5.93D-06 DE(Corr)= -2.0177074 E(CORR)= -541.44629169 Delta= 1.79D-06 DE(Corr)= -2.0177068 E(CORR)= -541.44629106 Delta= 6.29D-07 DE(Corr)= -2.0177077 E(CORR)= -541.44629199 Delta=-9.29D-07 DE(Corr)= -2.0177090 E(CORR)= -541.44629323 Delta=-1.24D-06 DE(Corr)= -2.0177087 E(CORR)= -541.44629301 Delta= 2.24D-07 DE(Corr)= -2.0177089 E(CORR)= -541.44629322 Delta=-2.08D-07 DE(Corr)= -2.0177092 E(CORR)= -541.44629346 Delta=-2.42D-07 DE(Corr)= -2.0177099 E(CORR)= -541.44629417 Delta=-7.12D-07 DE(Corr)= -2.0177102 E(CORR)= -541.44629447 Delta=-2.94D-07 DE(Corr)= -2.0177102 E(CORR)= -541.44629443 Delta= 3.11D-08 DE(Corr)= -2.0177102 E(CORR)= -541.44629450 Delta=-6.15D-08 DE(Corr)= -2.0177103 E(CORR)= -541.44629461 Delta=-1.17D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629495 Delta=-3.37D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629496 Delta=-7.01D-09 DE(Corr)= -2.0177106 E(CORR)= -541.44629485 Delta= 1.06D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629496 Delta=-1.13D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629494 Delta= 2.19D-08 DE(Corr)= -2.0177108 E(CORR)= -541.44629513 Delta=-1.88D-07 DE(Corr)= -2.0177106 E(CORR)= -541.44629492 Delta= 2.05D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629499 Delta=-6.81D-08 DE(Corr)= -2.0177108 E(CORR)= -541.44629506 Delta=-6.89D-08 DE(Corr)= -2.0177107 E(CORR)= -541.44629502 Delta= 4.01D-08 DE(Corr)= -2.0177108 E(CORR)= -541.44629508 Delta=-6.34D-08 DE(Corr)= -2.0177106 E(CORR)= -541.44629491 Delta= 1.78D-07 DE(Corr)= -2.0177109 E(CORR)= -541.44629516 Delta=-2.50D-07 DE(Corr)= -2.0177108 E(CORR)= -541.44629506 Delta= 9.95D-08 DE(Corr)= -2.0177107 E(CORR)= -541.44629500 Delta= 6.06D-08 DE(Corr)= -2.0177108 E(CORR)= -541.44629507 Delta=-7.08D-08 DE(Corr)= -2.0177107 E(CORR)= -541.44629497 Delta= 9.40D-08 DE(Corr)= -2.0177109 E(CORR)= -541.44629518 Delta=-2.04D-07 DE(Corr)= -2.0177106 E(CORR)= -541.44629488 Delta= 2.95D-07 DE(Corr)= -2.0177107 E(CORR)= -541.44629501 Delta=-1.28D-07 DE(Corr)= -2.0177108 E(CORR)= -541.44629508 Delta=-7.52D-08 DE(Corr)= -2.0177107 E(CORR)= -541.44629496 Delta= 1.21D-07 DE(Corr)= -2.0177108 E(CORR)= -541.44629512 Delta=-1.53D-07 DE(Corr)= -2.0177106 E(CORR)= -541.44629488 Delta= 2.40D-07 DE(Corr)= -2.0177109 E(CORR)= -541.44629521 Delta=-3.37D-07 DE(Corr)= -2.0177108 E(CORR)= -541.44629504 Delta= 1.77D-07 能量出現(xiàn)振蕩,應(yīng)該怎么處理呢。 這是log文件的最后幾行: Iteration Nr. 50 ********************** DD1Dir will call FoFJK 3 times, MxPair= 444 NAB= 666 NAA= 0 NBB= 0 NumPrc= 16. DD1Dir: Pass 1 NRAB= 222 NRAA= 0 NRBB= 0 NR= 444. DD1Dir: Pass 2 NRAB= 222 NRAA= 0 NRBB= 0 NR= 444. DD1Dir: Pass 3 NRAB= 222 NRAA= 0 NRBB= 0 NR= 444. Norm of the A-vectors is 6.4985416D-03 conv= 1.00D-05. RLE energy= -2.0177107770 DE(Corr)= -2.0177108 E(CORR)= -541.44629504 Delta= 1.77D-07 NORM(A)= 0.13677643D+01 ************* *MAX. CYCLES* ************* Largest amplitude= 6.28D-02 Error termination via Lnk1e in /home/gaussian/g09/l913.exe at Fri Nov 13 13:21:14 2015. Job cpu time: 38 days 17 hours 38 minutes 18.8 seconds. File lengths (MBytes): RWF= 146091 Int= 0 D2E= 0 Chk= 4 Scr= 1 |
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