| 4 | 1/1 | 返回列表 |
| 查看: 1547 | 回復(fù): 3 | |||
muxiachuixue木蟲 (正式寫手)
|
[求助]
NBO 電荷總數(shù)不為零
|
|
小弟最近算一個(gè)63個(gè)原子的分子,有C/H/O/N/S幾種原子,分子未經(jīng)高斯優(yōu)化,用b3lyp/6-311++g(d,p)算nbo,電荷總數(shù)為-1.8,可分子明明是中性的啊,輸入文件也規(guī)定了charge=0;再將分子用b3lyp/6-31+g(d,p)優(yōu)化,b3lyp/6-311++g(d,p)算nbo,電荷總數(shù)差不多為0 故請(qǐng)教大俠,為何未優(yōu)化之前算出的nbo電荷總和不為0呢? 以下貼出輸入文件和輸出文件 Summary of Natural Population Analysis: Natural Population Natural ----------------------------------------------- Atom No Charge Core Valence Rydberg Total ----------------------------------------------------------------------- C 1 0.05001 1.99919 3.92264 0.02816 5.94999 N 2 -0.45280 1.99943 5.43155 0.02182 7.45280 C 3 0.09288 1.99912 3.88022 0.02778 5.90712 C 4 -0.10952 1.99892 4.09574 0.01487 6.10952 C 5 -0.06187 1.99886 4.04467 0.01833 6.06187 C 6 -0.18951 1.99908 4.17558 0.01485 6.18951 C 7 -0.12920 1.99910 4.11328 0.01681 6.12920 C 8 -0.20789 1.99915 4.19040 0.01835 6.20789 C 9 -0.17112 1.99906 4.15306 0.01900 6.17112 C 10 -0.25147 1.99862 4.22640 0.02645 6.25147 S 11 2.16679 8.10518 3.66823 2.05979 13.83321 N 12 -0.93644 1.99938 5.90754 0.02952 7.93644 C 13 -0.02604 1.99921 4.00486 0.02196 6.02604 C 14 -0.58809 1.99930 4.57808 0.01071 6.58809 O 15 -0.91952 1.99980 6.90725 0.01247 8.91952 O 16 -1.38312 1.99980 5.57151 1.81181 9.38312 C 17 -0.17626 1.99919 4.15813 0.01894 6.17626 N 18 -0.20247 1.99919 5.17253 0.03075 7.20247 N 19 -0.11881 1.99955 5.08428 0.03498 7.11881 N 20 -0.25648 1.99955 5.23112 0.02580 7.25648 C 21 0.08265 1.99898 3.88401 0.03436 5.91735 C 22 -0.05744 1.99875 4.03747 0.02122 6.05744 C 23 -0.20684 1.99916 4.16820 0.03948 6.20684 N 24 -0.81971 1.99946 5.54323 0.27703 7.81971 C 25 -0.58863 1.99919 3.56164 1.02779 6.58863 C 26 -0.01296 1.99880 3.86661 0.14755 6.01296 C 27 -0.09641 1.99886 4.06605 0.03149 6.09641 C 28 -0.39495 1.99920 4.37714 0.01861 6.39495 C 29 -0.21182 1.99923 4.15193 0.06066 6.21182 C 30 -0.06698 1.99875 4.04751 0.02072 6.06698 C 31 0.12853 1.99892 3.84499 0.02757 5.87147 N 32 -0.56214 1.99905 5.50775 0.05534 7.56214 C 33 -0.19784 1.99911 4.18066 0.01806 6.19784 C 34 -0.22406 1.99918 4.20635 0.01853 6.22406 C 35 -0.21721 1.99919 4.19905 0.01897 6.21721 C 36 -0.22166 1.99909 4.20590 0.01667 6.22166 H 37 0.19605 0.00000 0.80172 0.00224 0.80395 H 38 0.19762 0.00000 0.80102 0.00136 0.80238 H 39 0.23123 0.00000 0.76619 0.00258 0.76877 H 40 0.20967 0.00000 0.78812 0.00221 0.79033 H 41 0.21467 0.00000 0.78330 0.00203 0.78533 H 42 0.23104 0.00000 0.76526 0.00370 0.76896 H 43 0.43595 0.00000 0.56060 0.00345 0.56405 H 44 0.21792 0.00000 0.77990 0.00218 0.78208 H 45 0.20541 0.00000 0.79297 0.00163 0.79459 H 46 0.19461 0.00000 0.80352 0.00187 0.80539 H 47 0.22500 0.00000 0.77299 0.00201 0.77500 H 48 0.22843 0.00000 0.76997 0.00160 0.77157 H 49 0.23057 0.00000 0.76731 0.00212 0.76943 H 50 0.22866 0.00000 0.76901 0.00233 0.77134 H 51 0.19969 0.00000 0.79020 0.01011 0.80031 H 52 0.17823 0.00000 0.81560 0.00617 0.82177 H 53 0.01128 0.00000 0.92878 0.05994 0.98872 H 54 0.11182 0.00000 0.82727 0.06091 0.88818 H 55 0.20988 0.00000 0.78604 0.00407 0.79012 H 56 0.20393 0.00000 0.79256 0.00351 0.79607 H 57 0.22122 0.00000 0.77247 0.00631 0.77878 H 58 0.14636 0.00000 0.84176 0.01189 0.85364 H 59 0.39280 0.00000 0.60310 0.00410 0.60720 H 60 0.20923 0.00000 0.78918 0.00159 0.79077 H 61 0.20118 0.00000 0.79693 0.00189 0.79882 H 62 0.20196 0.00000 0.79625 0.00179 0.79804 H 63 0.19995 0.00000 0.79774 0.00231 0.80005 ======================================================================= * Total * -1.80404 78.07562 181.42533 6.30308 265.80404 |
模擬,理論 |

金蟲 (著名寫手)
快樂兔子

木蟲 (正式寫手)
|
你好,我發(fā)郵件問了高斯官方,高斯官方給的建議是加上IOp(6/76=8)來提高線性相關(guān)的標(biāo)準(zhǔn),經(jīng)測(cè)試,電荷總和已正常,以下是gaussian的回復(fù): If you look at the beginning of the NBO analysis you will see the problem, Remove ICRem= 289 ICRemI= 290 L=0 PNAO number 289 atom 14 type 51 NPNAO= 520 due to symmetric orthogonalization 2, value= 0.00D+00. Computed number of electrons 148.18290763 does not match expected value of 148. where the program was having some problems orthogonalizing the basis set. We have seen this with some other calculations with diffuse basis sets and sometimes tightening the criteria for linear dependence will help. Using # rb3lyp/6-311++g(d,p) pop=npa IOp(6/76=8) which changes it from 10^-6 to 10^-8 will still be stable and yet correct the removal of important contributions. |

金蟲 (著名寫手)
快樂兔子

| 4 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研]
|
.6lL 2026-03-18 | 3/150 |
|
|---|---|---|---|---|
|
[考研] 331求調(diào)劑(0703有機(jī)化學(xué) +7 | ZY-05 2026-03-13 | 8/400 |
|
|
[考博] 環(huán)境領(lǐng)域全國(guó)重點(diǎn)實(shí)驗(yàn)室招收博士1-2名 +3 | QGZDSYS 2026-03-13 | 5/250 |
|
|
[考研] 工科材料085601 279求調(diào)劑 +6 | 困于星晨 2026-03-17 | 6/300 |
|
|
[考研] 307求調(diào)劑 +3 | 冷笙123 2026-03-17 | 3/150 |
|
|
[考研] 環(huán)境工程調(diào)劑 +8 | 大可digkids 2026-03-16 | 8/400 |
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|
|
[考研] 【0856】化學(xué)工程(085602)313 分,本科學(xué)科評(píng)估A類院;瘜W(xué)工程與工藝,誠(chéng)求調(diào)劑 +7 | 小劉快快上岸 2026-03-11 | 8/400 |
|
|
[考研] 有沒有道鐵/土木的想調(diào)劑南林,給自己招師弟中~ +3 | TqlXswl 2026-03-16 | 7/350 |
|
|
[考研] 梁成偉老師課題組歡迎你的加入 +8 | 一鴨鴨喲 2026-03-14 | 10/500 |
|
|
[基金申請(qǐng)] 國(guó)自科面上基金字體 +6 | iwuli 2026-03-12 | 7/350 |
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
[考研] 326求調(diào)劑 +4 | 諾貝爾化學(xué)獎(jiǎng)覬?/a> 2026-03-15 | 7/350 |
|
|
[考研] 304求調(diào)劑 +4 | ahbd 2026-03-14 | 4/200 |
|
|
[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
|
|
[基金申請(qǐng)] 現(xiàn)在如何回避去年的某一個(gè)專家,不知道名字 +3 | zk200107 2026-03-12 | 6/300 |
|
|
[考研] 255求調(diào)劑 +3 | 李嘉慧, 2026-03-12 | 4/200 |
|
|
[考研] 330求調(diào)劑 +3 | ?醬給調(diào)劑跪了 2026-03-13 | 3/150 |
|
|
[考研] 一志愿山大07化學(xué) 332分 四六級(jí)已過 本科山東雙非 求調(diào)劑! +3 | 不想理你 2026-03-12 | 3/150 |
|
|
[考研] 070303一志愿西北大學(xué)學(xué)碩310找調(diào)劑 +3 | d如愿上岸 2026-03-13 | 3/150 |
|