| 5 | 1/1 | 返回列表 |
| 查看: 1376 | 回復(fù): 5 | |||
| 當前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | |||
[求助]
高斯求助,這該如何翻譯成中文? 已有1人參與
|
|||
|
沒接觸過量子化學(xué)這一塊,但論文內(nèi)容又涉及到絕對構(gòu)型的計算,自己嘗試著翻譯,但什么什么基組、什么水平、什么理論等等的不知道該如何翻譯,故求專業(yè)的翻譯。 ECD Calculations. Calculated ECD spectra were obtained using the time-dependent density functional theory (TDDFT) employing the B3LYP functional using Gaussian 09, and were analyzed using GUIs GaussView (version 5.0). The calculations were performed at the HF/6-31G level in the gas phase for the initial optimization. The minimum geometries were fully optimized at the B3LYP/6-311G (d) level in the gas phase to yield more accurate conformers. The ECD spectra were simulated at the B3LYP/6-311G (d,p) level in methanol. The calculated ECD curves were generated using SpecDis with a σ of 0.2 eV. Absolute Configuration of XXX Enantiomers. The absolute configuration of a chiral molecule can could be deduced from its ECD spectrum. In this study, the TDDFT method was used to calculate the ECD spectra of XXX. By comparing the experimental ECD spectra to the calculated spectra, the absolute configurations of the XXX enantiomers were determined. The overall ECD curves obtained by the TDDFT calculations (Figure 2A) and those obtained experimentally (Figure 2B) were similar. In general, individual enantiomers exhibited specific CD signals at given wavelengths. The first eluted enantiomer was confirmed as the (–)-enantiomer, whereas the second enantiomer was the (+)-enantiomer, as noted by the region ranging from 200 nm to 500 nm (Figure 2B). Through the combination of computed and experimental ECD spectra, peak 1 and peak 2 in Figure 3 were assigned as S-(–)-XXX and R-(+)-XXX, respectively. |
|
圓二色譜的計算采用的是高斯09程序含時密度泛函理論下的B3LYP泛函,分析采用圖形化的高斯view5.0。在HF方法和6-31g基組的水平下做氣相初始結(jié)構(gòu)優(yōu)化。用B3LYP/6-311G(d)水平獲得氣相條件下的更準確構(gòu)象。在B3LYP/6-311G(d,p)水平下模擬甲醇中的圓二色譜。用segama為0.2eV的SpecDis計算出的ECD曲線。 應(yīng)該夠了吧! |

|
本帖內(nèi)容被屏蔽 |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 316求調(diào)劑 +6 | 梁茜雯 2026-03-19 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 307求調(diào)劑 +3 | wyyyqx 2026-03-17 | 3/150 |
|
|
[考研] 265求調(diào)劑 +3 | Jack?k?y 2026-03-17 | 3/150 |
|
|
[考研] 二本跨考鄭大材料306英一數(shù)二 +3 | z1z2z3879 2026-03-17 | 3/150 |
|
|
[考研] 324分 085600材料化工求調(diào)劑 +4 | llllkkkhh 2026-03-18 | 4/200 |
|
|
[考研] 一志愿華南師大 070300(化學(xué))304分求調(diào)劑 +3 | 0703武芊慧雪304 2026-03-18 | 3/150 |
|
|
[考研] 330求調(diào)劑 +4 | 小材化本科 2026-03-18 | 4/200 |
|
|
[考研] 求調(diào)劑,一志愿:南京航空航天大學(xué)大學(xué) ,080500材料科學(xué)與工程學(xué)碩,總分289分 +4 | @taotao 2026-03-19 | 4/200 |
|
|
[考研] 藥學(xué)383 求調(diào)劑 +3 | 藥學(xué)chy 2026-03-15 | 5/250 |
|
|
[考研] 0817 化學(xué)工程 299分求調(diào)劑 有科研經(jīng)歷 有二區(qū)文章 +22 | rare12345 2026-03-18 | 22/1100 |
|
|
[考研] 材料與化工專碩調(diào)劑 +7 | heming3743 2026-03-16 | 7/350 |
|
|
[考研] 08工學(xué)調(diào)劑 +5 | 用戶573181 2026-03-20 | 5/250 |
|
|
[考研] 085600材料與化工調(diào)劑 324分 +10 | llllkkkhh 2026-03-18 | 12/600 |
|
|
[考研] 286求調(diào)劑 +6 | lemonzzn 2026-03-16 | 10/500 |
|
|
[考研] 一志愿福大288有機化學(xué),求調(diào)劑 +3 | 小木蟲200408204 2026-03-18 | 3/150 |
|
|
[考博] 26博士申請 +3 | 1042136743 2026-03-17 | 3/150 |
|
|
[考研] 304求調(diào)劑 +3 | 曼殊2266 2026-03-14 | 3/150 |
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
[考研] 0856求調(diào)劑 +3 | 劉夢微 2026-03-15 | 3/150 |
|
|
[考研] 289求調(diào)劑 +4 | 這么名字咋樣 2026-03-14 | 6/300 |
|