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LinaInverse木蟲 (小有名氣)
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[求助]
不進(jìn)行optimize就直接報(bào)錯(cuò)收斂失敗,求解決
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rt,小可做計(jì)算有段時(shí)間也有些心得了,體系很大,124個(gè)原子,元素為C,H,B,N和重元素Ir,方法b3lyp,基組6-31g(d)+lanl2dz,-3電荷,多重度3 試過opt=tight,沒用,iop(5/13)=1沒試但也不想試 自洽場(chǎng)可以收斂,但是一圈優(yōu)化都沒跑就直接報(bào)錯(cuò)收斂失敗,求大俠指點(diǎn) 以下是報(bào)錯(cuò)語句: Symmetry not used in FoFCou. Initial guess <Sx>= 0.0000 <Sy>= 0.0000 <Sz>= 1.0000 <S**2>= 2.0000 S= 1.0000 Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. Defaulting to unpruned grid for atomic number 77. EnCoef did 100 forward-backward iterations EnCoef did 1 forward-backward iterations EnCoef did 5 forward-backward iterations EnCoef did 2 forward-backward iterations Restarting incremental Fock formation. Matrix for removal 4 Erem= -2448.69634785012 Crem= 0.000D+00 Matrix for removal 3 Erem= -2454.71182296237 Crem= 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Rare condition: small coef for last iteration: 0.000D+00 Restarting incremental Fock formation. Restarting incremental Fock formation. Restarting incremental Fock formation. Restarting incremental Fock formation. Restarting incremental Fock formation. >>>>>>>>>> Convergence criterion not met. SCF Done: E(UB3LYP) = -2458.97111905 A.U. after 129 cycles Convg = 0.4215D-04 -V/T = 2.0365 <Sx>= 0.0000 <Sy>= 0.0000 <Sz>= 1.0000 <S**2>= 2.0085 S= 1.0028 <L.S>= 0.000000000000E+00 Annihilation of the first spin contaminant: S**2 before annihilation 2.0085, after 2.0000 Convergence failure -- run terminated. Error termination via Lnk1e in /gpfssan1/home/hyan//g09/l502.exe at Wed Jul 3 19:29:12 2013. |

木蟲 (小有名氣)
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主題貼上寫了lanl2dz贗勢(shì)基組了,你猜是用在哪個(gè)原子上? 而且問題不是SCF不收斂,如果是scf不收斂報(bào)錯(cuò)語句會(huì)不一樣,最典型的就是經(jīng)過多少多少圈優(yōu)化后SCF不收斂這個(gè)句子,可是log里沒有 個(gè)人經(jīng)驗(yàn)scf=qc對(duì)付不收斂得不償失而且也不是每次都會(huì)奏效,iop(5/13=1)對(duì)付自洽場(chǎng)不收斂有用但實(shí)質(zhì)是跳過自洽場(chǎng)檢驗(yàn),沒解決根本問題 初始結(jié)構(gòu)單線態(tài)條件下優(yōu)化過,正在算頻率看會(huì)不會(huì)有虛頻,但我們組做過很多類似配合物,構(gòu)型問題恐怕不大 |

鐵桿木蟲 (著名寫手)
木蟲 (小有名氣)

金蟲 (正式寫手)

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