查詢詞典 isomer
- 與 isomer 相關的網(wǎng)絡例句 [注:此內(nèi)容來源于網(wǎng)絡草草影院日本欧美国产第一页,僅供參考]
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The molecule of DAFF isomer is planar and packs layer by layer like graphite.
結(jié)果表明:DAFF isomer晶體屬三斜晶系欧美69,空間群P-1日韩手机福利写真在线观看,分子呈平面構(gòu)型www.1hdc666.com。
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A novel isomer of furazano energetic compound 3,4-diaminofurazanofuroxan was synthesized by the dimeric ring-close reaction of transitional intermediate 3-amino-4-cyanofurazan oxide after the energetic compound 3-amino-4-chloroximinofurazan was treated with diluent alkali at low temperature, The yield of DAFF isomer could be over 66.3% and its single crystal was cultivated.
將含能化合物3-氨基-4-氯肟基呋咱在低溫下用稀堿處理后發(fā)生過渡中間體3-氨基-4-氰基呋咱氧化物的二聚關環(huán)反應合成了新型呋咱類含能化合物35566资源在线,4-二氨基呋咱基氧化呋咱異構(gòu)體91综合在线视频,產(chǎn)率達66.3%超级碰人人操人人。
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The molecular structure of this isomer has been determined by X-ray diffraction and it is the first time to report the crystal structure of this kind of isomer which was proposed erroneously in the literature.
采用X-射線衍射的方法測定了其中一個異構(gòu)體的結(jié)構(gòu),這是對此類異構(gòu)體單晶結(jié)構(gòu)的首次報導资阳豪谙信用担保有限公司,糾正了文獻中存在的對此類化合物結(jié)構(gòu)的錯誤認識三级真人在线免费观看视频。
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Several transient compounds were synthesized by the homo- and heterogeneous reactions of reactive halogen compounds, In-situ ultraviolet photoelectron spectroscopy and photoionization mass spectroscopy as well as theoretical calculations were used to study their molecular structures, stability and molecular orbital properties, their electronic structures and geometric structures were obtained for the first time; Simultaneously, the electronic structure and thermal dissociation of acetyl peroxynitrate and trifluoroacetyl peroxynitrate which have great importance in the atmospheric chemistry were studied; The substituent effects of series of halopyridines and halothiophenes were studied by the ultraviolet photoelectron spectroscopy method for the first time. The atmospheric chemical reaction between peroxyacetyl radicals with IO radicals as well as the dissociation of the most stable isomer of CH3COIO3 were calculated by density functional theory, it was found that the CH3COOIO2 isomer may be act as a new reservoir of inorganic iodine in the stratosphere.
通過活性鹵素的系列均相與非均相化學反應合成了幾種瞬態(tài)物種,采用原位紫外光電子能譜和光電離質(zhì)譜結(jié)合量子化學理論計算對化合物的分子結(jié)構(gòu)欧美性爱插b、穩(wěn)定性以及分子軌道特性進行了研究超碰青青碰人人射,首次獲得了這些物種的電子結(jié)構(gòu)和幾何結(jié)構(gòu)的信息;同時研究了大氣中有重要作用的乙酰過氧硝酸酯和三氟乙酰過氧硝酸酯的電子結(jié)構(gòu)性質(zhì)及熱解過程亚洲国产精品国产自在在线;采用紫外光電子能譜手段首次研究了系列鹵代吡啶和噻吩的取代基效應国产免费一级A片免费网在线女;通過量子化學理論計算研究了乙酰基過氧自由基與IO自由基的大氣化學反應及其最穩(wěn)定異構(gòu)體CH3COOIO2的解離69天堂一区二区三区在线观看,發(fā)現(xiàn)該物種可能是無機碘化合物在平流層中的儲庫物種黄网免费看。
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A computational result of RHF/LANL2DZ optimized structure and total energy shows that the isomers with C H…π structure have lower total energy, and that stability and isomeric preference of isomer are related to the C H…π interaction in the isomer.
用 RHF/LANL2DZ對該體系可能的異構(gòu)體進行結(jié)構(gòu)欧美精品极品高清免费、能量優(yōu)化国产无遮挡免费视频一区二区,可能形成C—H…π相互作用的異構(gòu)體具有較好的穩(wěn)定性偷拍网站大全。C—H…π相互作用對含吡啶環(huán)的[CoN5Cl]^2+系配合物的異構(gòu)體的選擇性形成及其穩(wěn)定性具有重要作用。
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The para-/ortho- product isomer ratio is 6.2 for the nitration of chlorobenzene at 18℃ for 8h with n/n(NH4NO3)=5. The para-/ortho- product isomer ratio is 14.0 for the nitration of bromobenzene at 0℃ for 8h with n/n(NH4NO3)=5. The pars-product, p-nitrobromobenzene, from the nitration of bromobenzene in [HSO4] under 0℃ precipitates with 98% purity, which facilitates the separation of the pure isomert.
其中氯苯在18℃下反應8h全网毛片免费网,三氟乙酸酐/硝酸銨為4時產(chǎn)物的對鄰比達到6.2色婬视频激情视频,而溴苯在0℃下反應8h,TFAA/硝酸銨為5時產(chǎn)物的對鄰比可達到14.0免费一国产一级A片户外,并且生成的對硝基溴苯可以從反應液中析出,得到對硝基溴苯含量為98%的產(chǎn)物看久久久久久久久特级毛片。
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The bioassays showed that the inhabitation rate of the mixture of two isomers, Z isomer and E isomer were reached 95 %, 100% and 97% against Sphaerotheca fuliginea at 50 mg/L.
結(jié)果表明午夜18,當處理劑量為50mg/L時,氯苯肟唑在线高清无码不卡、Z-氯苯肟唑和E-氯苯肟唑的防效分別為95%伦理天堂百度影音观看、100%和97%日韩三级AV网站,三者活性基本相當,故在實際中無須將兩個異構(gòu)體分離美国a级黄色视频,混合體可直接應用一级精品久久久久。
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The bioassays showed that the inhabitation rate of the mixture of two isomers, Z isomer and E isomer were reached 95%, 100% and 97% against Sphaerotheca fuliginea at 50 mg/L. The inhabitation rate of them was similar, so the mixture of the two isomers can be used without separation.
結(jié)果表明,當處理劑量為50 mg/L時一级毛片AAAAAAA免费视频,氯苯肟唑涩涩网站地址、Z-氯苯肟唑和E-氯苯肟唑的防效分別為95%、100%和97%黄色网站免费看视频免费看,三者活性基本相當亚洲一级女性黄色生活,故在實際中無須將兩個異構(gòu)體分離,混合體可直接應用精品欧美一区二区在线观看视频。
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The quantitative relationship between isomer shift, refractive index and chemical bond parameters were established. The calculated results indicated that the change of crystal parameters and bond length will alter the covalency of chemical bond and peripheral electron density of Fe2+ nuclear, which in turn leads to the change of the isomer shift and refractive index.
根據(jù)計算結(jié)果發(fā)現(xiàn)xxxx9999电影网,晶胞參數(shù)及化學鍵長的變化引起化學鍵共價性、Fe2+核附近電子云密度的變化等人人揉人人操,最終導致同質(zhì)異能位移的改變性生一级录像20分钟免费,計算結(jié)果與實驗數(shù)據(jù)之間較好的一致性驗證了此理論的準確性和普適性。
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Rresults from those studies can be summariazed as follow:(1) A preliminary study no correlationship between the UV-VIS reflection spectrum of tomato fruit surface and the lycopene amount of tomato fruit was undertaken. Based on observation from this study, a damage-free and in-situ detection technique of lycopene amount from tomato was developed with UV-VIS reflection spectroscopy;(2) The geometrical isomers of lycopene were separated successfully on C30-HPLC-PDA-ELSD. The absorption coefficients of Z-isomers were consequently dedermined. The geometrical isomer composition of lycopene could therefore be assessed. Those efforts formed a solid base to identify the natural product from synthetic compound of lycopene;(3) Lycopene resource from the fruit of Autumn oliver was proved to be available for industrial application. An extraction methos of lycopene from the fruit of Autumn oliver by supercritical carbon dioxide was developed at laboratory scale;(4) A method to extract lycopene by supercritical liquid with improved efficiency was developed; Data from this investigation suggested that a proper raw material pre-extraction process was important for a better extraction efficiency;(5) Variation in the geometrical isomer composition of lycopene during its metabolish in rat was assessed. A large amount of Z-isomers were observed. This variation took place in serum;(6) The absorption rate and accumulation in serum of natural lycopene in rat were assessed;(7) Ability to quench singlet oxygen by different geometrical isomers of lycopene was compared;(8) It was detected that whether natural lycopene had functions to regule blood-lipids and LDL antioxidation;(9) A C31 degradation piece of lycopene was found in the prostate gland of rat.
研究結(jié)果包括:[1]應用UV-VIS反射光譜法建立了番茄果實中番茄紅素含量的無損傷A片www.、現(xiàn)場檢測技術(shù)_西西人体国产精品;[2]應用C30-HPLC-PDA-ELSD技術(shù)實現(xiàn)了對番茄紅素幾何異構(gòu)體的分離,測定了不同順式異構(gòu)體的吸光系數(shù)免费一区二区A片免费!,建立了天然番茄紅素幾何異構(gòu)體組成的檢測方法性爱毛片无码在线观看,為區(qū)分和鑒定人工合成品和天然產(chǎn)物奠定了基礎;[3]證實了秋橄欖果實中的番茄紅素資源具有工業(yè)開發(fā)價值黄色不卡视频观看,并建立了超臨界CO_2萃取的實驗室方法国产亚洲精品777777;[4]探索了提高番茄紅素超臨界流體萃取效率的方法,證明了物料前處理對提高萃取效率起了極其重要的作用久九热精品;[5]觀察了番茄紅素在大鼠體內(nèi)幾何異構(gòu)體組成的變化情況亚洲日韩色图网站最新,發(fā)現(xiàn)了大量順式異構(gòu)體的存在,并證實了幾何異構(gòu)體組成在血清中發(fā)生了顯著變化国内自拍2022;[6]測定了天然番茄紅素在大鼠體內(nèi)的吸收率和在大鼠血清中的動態(tài)積累規(guī)律五月天激情综合网;[7]比較了不同番茄紅素幾何異構(gòu)體淬滅單線態(tài)氧的能力;[8]檢測了天然番茄紅素是否具有調(diào)節(jié)血脂作用和抗低密度脂蛋白氧化的功能一国产区视频;[9]首次發(fā)現(xiàn)大鼠前列腺內(nèi)存在番茄紅素C31降解片段人人操人人操人人操人人操人人操人人操,并證實其仍具有淬滅單線態(tài)氧的能力。
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
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Go down on one's knees;kneel down
屈膝跪下欧美专区一页。一级在线亚洲欧美日本。。下跪祈禱
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
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