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【求助】半經(jīng)驗(yàn)方法優(yōu)化過渡金屬? 已有4人參與
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專家:你們好! 請(qǐng)問半經(jīng)驗(yàn)方法可以用來優(yōu)化含過渡金屬的體系嗎? 我用AM1方法優(yōu)化Cu時(shí),總是出現(xiàn)如下錯(cuò)誤: Rotational constants (GHZ): 0.0202481 0.0193734 0.0124244 Standard basis: VSTO-3G (5D, 7F) There are 400 symmetry adapted basis functions of A symmetry. Integral buffers will be 262144 words long. Raffenetti 2 integral format. Two-electron integral symmetry is turned on. 400 basis functions, 1200 primitive gaussians, 400 cartesian basis functions 240 alpha electrons 239 beta electrons nuclear repulsion energy 9684.0231026384 Hartrees. Warning! Cu atom 154 has 11 valence electrons but only 4 basis functions. This is less than a minimal basis set! NAtoms= 154 NActive= 154 NUniq= 154 SFac= 1.00D+00 NAtFMM= 60 Big=T Simple Huckel Guess. NBasis= 400 NMin= 405 so simple Huckel guess is impossible. Error termination via Lnk1e in f:\g03\l401.exe at Sat Sep 04 20:41:25 2010. Job cpu time: 0 days 0 hours 0 minutes 20.0 seconds. File lengths (MBytes): RWF= 440 Int= 0 D2E= 0 Chk= 1 Scr= 1 為什么會(huì)出現(xiàn)but only 4 basis functions.?怎樣解決呢 ? 當(dāng)我優(yōu)化其他過渡金屬如Cd時(shí)就可以正常進(jìn)行。 [ Last edited by yjcmwgk on 2010-9-7 at 12:32 ] |

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