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gougaozhan至尊木蟲 (職業(yè)作家)
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[求助]
Gaussian 09 優(yōu)化配合物不收斂求助 已有1人參與
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各給大神,小弟以往沒(méi)算過(guò)配合物,F(xiàn)如今出現(xiàn)一個(gè)問(wèn)題,求高手解決。 第一次優(yōu)化,循環(huán)到129次停了,不收斂。后來(lái)加大循環(huán)次數(shù)再次優(yōu)化,結(jié)果到129次又停了,不知道怎么回事。謝謝!輸入文件及錯(cuò)誤信息如下: 輸入文件: %mem=200mw %chk=04 #p b3lyp/gen opt(maxcyc=500) freq SCRF=(PCM,read,Solvent=Methanol) pseudo=read 04 2 1 Br -4.42614000 3.54908500 7.60010300 Ni -0.93898900 6.99338700 13.06047500 O -0.57985700 6.10587100 11.46451300 O 0.86790800 7.34002000 13.03624300 O 1.23433600 5.37639500 9.72160500 O 0.71129800 4.04342300 8.19656000 N -2.77086000 6.71540200 12.99178100 N -1.24436900 7.84016700 14.67021900 N 5.11102000 8.96870500 14.34342400 N 0.46171400 4.75554800 9.14804600 C -1.43013100 5.53405800 10.66864400 C -0.98131300 4.84607300 9.49484900 C -1.87721000 4.26520800 8.59894100 H -1.55885300 3.83748000 7.83641800 C -3.22492100 4.32404900 8.83903500 C -3.72217300 4.94489500 9.97948400 H -4.63805100 4.96903500 10.13954700 C -2.82753600 5.53481300 10.88650800 C -3.43205500 6.12850200 12.03807200 H -4.35899300 6.09304600 12.11143400 C -3.46766900 7.26986400 14.11444500 C -4.84806900 7.26458300 14.29673900 H -5.40502100 6.82252200 13.69650300 C -5.37237200 7.92842900 15.38828000 H -6.29295100 7.94049900 15.51722000 C -4.54418700 8.58095900 16.29530400 H -4.91515700 9.02980900 17.02225600 C -3.17194400 8.56436300 16.12634800 H -2.62156700 8.99510800 16.73992300 C -2.60138900 7.89297300 15.01480000 C -0.32480100 8.37350700 15.45497300 H -0.60876400 8.72202600 16.26862600 C 1.03338600 8.45724200 15.16152400 C 1.91853100 9.11354400 16.06854800 H 1.56949700 9.44471200 16.86441700 C 3.21504300 9.27497900 15.83067600 H 3.75138000 9.69667200 16.46203600 C 3.79616600 8.80274400 14.60352700 C 2.92387900 8.13738900 13.71428800 H 3.27968700 7.80244900 12.92286500 C 1.59325000 7.95634000 13.94326700 C 5.73514000 8.40292700 13.15851300 H 5.31365900 7.55124400 12.96288100 H 6.66982100 8.23168500 13.35192300 C 5.64484200 9.28101400 11.93358700 H 4.72973000 9.34513600 11.65125300 H 6.17049900 8.89854900 11.22664200 H 5.97747400 10.15683800 12.14255800 C 5.98038800 9.75475800 15.21932500 H 5.46740400 10.47970800 15.61059000 H 6.69417300 10.14476800 14.69245000 C 6.58021500 8.91514500 16.32642700 H 5.89408000 8.67600900 16.95556400 H 7.26283600 9.41906400 16.77549300 H 6.96365900 8.11853000 15.95294700 -C -H -O -N 0 6-31+G* **** -Ni -Br 0 Lanl2dz **** -Ni -Br 0 Lanl2dz 錯(cuò)誤信息: >>>>>>>>>> Convergence criterion not met. SCF Done: E(RB3LYP) = -1628.96947841 A.U. after 129 cycles Convg = 0.1027D-03 -V/T = 2.0502 KE= 1.551068550266D+03 PE=-1.110319892064D+04 EE= 4.244535918336D+03 Convergence failure -- run terminated. Error termination via Lnk1e in E:\G09W\l502.exe at Wed Jul 26 03:53:42 2017. Job cpu time: 0 days 17 hours 8 minutes 33.0 seconds. File lengths (MBytes): RWF= 552 Int= 0 D2E= 0 Chk= 27 Scr= 1 為什么設(shè)置了500次,結(jié)果還是只到129次就死了。 |

至尊木蟲 (職業(yè)作家)
busy
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我的初使猜測(cè)結(jié)構(gòu)用的是晶體結(jié)構(gòu),另外兩個(gè)配體稍微小點(diǎn)的就沒(méi)問(wèn)題,都能優(yōu)化過(guò)去 發(fā)自小木蟲Android客戶端 |

新蟲 (正式寫手)
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這是SCF不收斂,你設(shè)置的是opt循環(huán)次數(shù),看你的收斂程度遠(yuǎn)遠(yuǎn)沒(méi)有達(dá)到收斂標(biāo)準(zhǔn),再加大循環(huán)也很難收斂,應(yīng)該從你的初始結(jié)構(gòu)的合理性入手,鍵長(zhǎng)健角要合理,這樣才好收斂 發(fā)自小木蟲Android客戶端 |

至尊木蟲 (職業(yè)作家)
busy
|
我的初使猜測(cè)結(jié)構(gòu)用的是晶體結(jié)構(gòu),另外兩個(gè)配體稍微小點(diǎn)的就沒(méi)問(wèn)題,都能優(yōu)化過(guò)去 發(fā)自小木蟲Android客戶端 |

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