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1243946679至尊木蟲 (正式寫手)
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[求助]
vasp計算團(tuán)簇振動頻率 再次求助
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計算一個碳六環(huán)的振動頻率,共進(jìn)行了四次計算:一,不固定碳原子;二,固定一個碳原子;三.固定1、4兩個碳原子;四,固定1、2兩個碳原子。蟲友告知,計算團(tuán)簇的振動頻率最起碼需固定一個原子。據(jù)悉,計算的團(tuán)簇振動頻率,存在3個平動和3個轉(zhuǎn)動。請問,1,這3個平動和3個轉(zhuǎn)動理論上是否應(yīng)該是0?是對應(yīng)下面“一”中的13f、14f、15f、16f、17f、18f嗎?我是否可以將“一”中的13—18f刨除,將剩下的當(dāng)做碳六環(huán)的振動頻率呢?2,如果1的敘述不合理,固定一個原子,還是存在虛頻,固定兩個不同的原子,計算結(jié)果略有差別,具體應(yīng)該如何固定原子,計算團(tuán)簇的振動頻率呢?具體計算結(jié)果如下: 一 : 1 f = 52.466496 THz 329.656717 2PiTHz 1750.093873 cm-1 216.984064 meV 2 f = 52.459118 THz 329.610362 2PiTHz 1749.847781 cm-1 216.953552 meV 3 f = 43.450246 THz 273.005945 2PiTHz 1449.344143 cm-1 179.695836 meV 4 f = 35.803867 THz 224.962328 2PiTHz 1194.288398 cm-1 148.072943 meV 5 f = 35.436568 THz 222.654522 2PiTHz 1182.036633 cm-1 146.553917 meV 6 f = 35.434016 THz 222.638489 2PiTHz 1181.951514 cm-1 146.543364 meV 7 f = 17.967528 THz 112.893309 2PiTHz 599.332211 cm-1 74.307750 meV 8 f = 17.965634 THz 112.881405 2PiTHz 599.269012 cm-1 74.299915 meV 9 f = 17.280564 THz 108.576988 2PiTHz 576.417566 cm-1 71.466695 meV 10 f = 15.522058 THz 97.527965 2PiTHz 517.760096 cm-1 64.194094 meV 11 f = 15.520662 THz 97.519194 2PiTHz 517.713535 cm-1 64.188321 meV 12 f = 12.985693 THz 81.591515 2PiTHz 433.156076 cm-1 53.704528 meV 13 f = 0.310525 THz 1.951085 2PiTHz 10.357995 cm-1 1.284228 meV 14 f = 0.269779 THz 1.695073 2PiTHz 8.998866 cm-1 1.115718 meV 15 f = 0.104789 THz 0.658412 2PiTHz 3.495400 cm-1 0.433375 meV 16 f/i= 0.001713 THz 0.010765 2PiTHz 0.057149 cm-1 0.007086 meV 17 f/i= 0.034194 THz 0.214850 2PiTHz 1.140606 cm-1 0.141417 meV 18 f/i= 0.214016 THz 1.344704 2PiTHz 7.138816 cm-1 0.885101 meV 二: 1 f = 51.412688 THz 323.035443 2PiTHz 1714.942609 cm-1 212.625861 meV 2 f = 49.690292 THz 312.213315 2PiTHz 1657.489692 cm-1 205.502605 meV 3 f = 42.063857 THz 264.295009 2PiTHz 1403.099201 cm-1 173.962192 meV 4 f = 35.560026 THz 223.430233 2PiTHz 1186.154752 cm-1 147.064499 meV 5 f = 28.119356 THz 176.679123 2PiTHz 937.960716 cm-1 116.292349 meV 6 f = 23.432305 THz 147.229514 2PiTHz 781.617537 cm-1 96.908259 meV 7 f = 17.724283 THz 111.364956 2PiTHz 591.218432 cm-1 73.301770 meV 8 f = 17.469245 THz 109.762506 2PiTHz 582.711285 cm-1 72.247018 meV 9 f = 15.522067 THz 97.528021 2PiTHz 517.760397 cm-1 64.194131 meV 10 f = 14.421548 THz 90.613261 2PiTHz 481.051057 cm-1 59.642751 meV 11 f = 10.820638 THz 67.988072 2PiTHz 360.937613 cm-1 44.750577 meV 12 f = 9.719964 THz 61.072333 2PiTHz 324.223080 cm-1 40.198553 meV 13 f = 0.310039 THz 1.948034 2PiTHz 10.341797 cm-1 1.282220 meV 14 f = 0.110415 THz 0.693758 2PiTHz 3.683047 cm-1 0.456640 meV 15 f/i= 0.193217 THz 1.214021 2PiTHz 6.445042 cm-1 0.799084 meV 三: 1 f = 49.656925 THz 312.003662 2PiTHz 1656.376677 cm-1 205.364608 meV 2 f = 44.376005 THz 278.822665 2PiTHz 1480.224162 cm-1 183.524472 meV 3 f = 32.734594 THz 205.677522 2PiTHz 1091.908501 cm-1 135.379449 meV 4 f = 29.258858 THz 183.838825 2PiTHz 975.970412 cm-1 121.004953 meV 5 f = 28.069243 THz 176.364254 2PiTHz 936.289131 cm-1 116.085099 meV 6 f = 23.004535 THz 144.541753 2PiTHz 767.348652 cm-1 95.139142 meV 7 f = 16.008088 THz 100.581781 2PiTHz 533.972308 cm-1 66.204152 meV 8 f = 15.522067 THz 97.528021 2PiTHz 517.760397 cm-1 64.194131 meV 9 f = 12.291800 THz 77.231656 2PiTHz 410.010297 cm-1 50.834816 meV 10 f = 10.858973 THz 68.228941 2PiTHz 362.216349 cm-1 44.909120 meV 11 f = 8.651969 THz 54.361922 2PiTHz 288.598600 cm-1 35.781679 meV 12 f = 0.310039 THz 1.948034 2PiTHz 10.341793 cm-1 1.282219 meV 四: 1 f = 51.129212 THz 321.254316 2PiTHz 1705.486893 cm-1 211.453501 meV 2 f = 45.531395 THz 286.082194 2PiTHz 1518.763822 cm-1 188.302783 meV 3 f = 35.570776 THz 223.497777 2PiTHz 1186.513332 cm-1 147.108957 meV 4 f = 30.768364 THz 193.323333 2PiTHz 1026.322119 cm-1 127.247771 meV 5 f = 25.934747 THz 162.952824 2PiTHz 865.090028 cm-1 107.257532 meV 6 f = 17.541555 THz 110.216842 2PiTHz 585.123281 cm-1 72.546067 meV 7 f = 14.517645 THz 91.217053 2PiTHz 484.256491 cm-1 60.040174 meV 8 f = 13.798298 THz 86.697262 2PiTHz 460.261661 cm-1 57.065194 meV 9 f = 13.789076 THz 86.639322 2PiTHz 459.954065 cm-1 57.027056 meV 10 f = 5.727227 THz 35.985231 2PiTHz 191.039736 cm-1 23.685917 meV 11 f = 4.276048 THz 26.867204 2PiTHz 142.633614 cm-1 17.684321 meV 12 f = 0.173921 THz 1.092775 2PiTHz 5.801366 cm-1 0.719278 meV |
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