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exabyss916新蟲 (小有名氣)
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[交流]
【求助】關(guān)于UGBS和ANO-RCC用在DKH計(jì)算的精度 已有3人參與
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我用兩種方法分別計(jì)算了RbCs系統(tǒng),由于計(jì)算量太大只計(jì)算了單點(diǎn)能量,但既然方法都一樣只是Basis set不一樣即使單點(diǎn)能量應(yīng)該也可以直接比較。 兩種方法能量相差幾百個Hatree(計(jì)算的能量為10000個Hatree左右)。 請問到底哪種方法是合理的呢? |
專家顧問 (職業(yè)作家)
地溝油冶煉專家
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專家經(jīng)驗(yàn): +458 |

新蟲 (小有名氣)
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更多計(jì)算細(xì)節(jié): 基組1: # MP2/gen Integral=DKH 這里gen產(chǎn)生的是ano-rcc基組,結(jié)果如下: 1\1\GINC-NODE04\SP\RMP2-FC\Gen\Cs1Rb1\name\08-May-2010\0\\# MP2/gen Integral=DKH\\\0,1\Rb\Cs,1,4.3\\Version=EM64L-G09RevA.01\State=1-SG\HF =-10488.3784426\MP2=-10488.3888615\RMSD=7.597e-09\PG=C*V [C*(Rb1Cs1)]\ 基組2: # MP2/UGBS guess(indo) Integral=DKH 結(jié)果如下: 1\1\GINC-NODE05\SP\RMP2-FC\UGBS\Cs1Rb1\name\10-May-2010\0\\# MP2/UGB S guess(indo) Integral=DKH\\\0,1\Rb\Cs,1,4.3\\Version=EM64L-G09RevA.01 \State=1-SG\HF=-10759.4475783\MP2=-10759.4590548\RMSD=2.655e-09\PG=C*V [C*(Rb1Cs1)]\\@ |

新蟲 (小有名氣)
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確實(shí)不太一樣,軌道能級也不一樣: 基組1: Occupied (SG) (SG) (SG) (SG) (PI) (PI) (SG) (SG) (SG) (PI) (PI) (SG) (PI) (PI) (SG) (PI) (PI) (DLTA) (DLTA) (SG) (SG) (SG) (PI) (PI) (DLTA) (DLTA) (PI) (PI) (SG) (SG) (PI) (PI) (DLTA) (DLTA) (PI) (PI) (SG) (SG) (SG) (PI) (PI) (SG) (SG) (PI) (PI) (SG) Alpha occ. eigenvalues -- **********-589.04971-212.16515-190.33495-190.33491 Alpha occ. eigenvalues -- -190.33491 -89.74429 -45.77127 -38.89039 -38.87668 Alpha occ. eigenvalues -- -38.87668 -38.54419 -38.54412 -38.54412 -27.83521 Alpha occ. eigenvalues -- -27.83519 -27.83519 -27.83516 -27.83516 -15.37358 Alpha occ. eigenvalues -- -9.34989 -7.61111 -7.61066 -7.61066 -7.60985 Alpha occ. eigenvalues -- -7.60985 -6.93297 -6.93297 -6.93286 -5.70744 Alpha occ. eigenvalues -- -5.70351 -5.70351 -3.27885 -3.27885 -3.27865 Alpha occ. eigenvalues -- -3.27865 -3.27861 -2.11817 -1.33481 -0.70938 Alpha occ. eigenvalues -- -0.70938 -0.70614 -0.49512 -0.49075 -0.49075 Alpha occ. eigenvalues -- -0.15553 基組2: Occupied (SG) (SG) (SG) (SG) (PI) (PI) (SG) (SG) (PI) (PI) (SG) (SG) (PI) (PI) (SG) (PI) (PI) (DLTA) (DLTA) (SG) (SG) (PI) (PI) (SG) (SG) (PI) (PI) (SG) (PI) (PI) (DLTA) (DLTA) (SG) (PI) (PI) (DLTA) (DLTA) (SG) (SG) (SG) (PI) (PI) (SG) (PI) (PI) (SG) Alpha occ. eigenvalues -- **********-561.64098-212.13438-190.30259-190.30255 Alpha occ. eigenvalues -- -190.30255 -77.44271 -68.46967 -68.46962 -68.46962 Alpha occ. eigenvalues -- -45.73965 -38.51214 -38.51201 -38.51201 -27.80330 Alpha occ. eigenvalues -- -27.80327 -27.80327 -27.80318 -27.80318 -12.54071 Alpha occ. eigenvalues -- -9.56621 -9.56605 -9.56605 -9.31841 -6.90121 Alpha occ. eigenvalues -- -6.90103 -6.90103 -4.62803 -4.62798 -4.62798 Alpha occ. eigenvalues -- -4.62785 -4.62785 -3.24712 -3.24705 -3.24705 Alpha occ. eigenvalues -- -3.24690 -3.24690 -1.55366 -1.30469 -0.79716 Alpha occ. eigenvalues -- -0.79562 -0.79562 -0.67816 -0.67732 -0.67732 Alpha occ. eigenvalues -- -0.11975 |
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