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 Wysłany: Śro 15:19, 29 Gru 2010 Temat postu: ugg botas Electronic density topological analysis |
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Electronic density topological analysis of ethane,[link widoczny dla zalogowanych], ethylene, acetylene and ethane CC bond to replace the Matter of Homologous
255,640.1997. [6】 XiIlshenzhang, XiaopingJiangLowPressure10nChrOmatOraphy. J. Chromat0gr. A, 1994,671:23 ~ 28. [7】 FaJ1taGF. , BurrR. C. ,[link widoczny dla zalogowanych], Eta1. GraftCopolymerySimultaneOusCO6u-Inadiati0nOfSta】 h. Acr), larmide, andN, N, N-Trimethy1-lamin0ethylMethaclateMethyISulElte. J. App1. Polym. Sci. . 1974.18:22 O5ResearchAndDeVel0pmentofaNewComplexFlocculantZHENGXue-qin (FujianC0mmuIlicationsTeclulologyC0llege, Fuzhou, Fujian35ooO7, Cllina) Abstract: TnewcOmplexf1OcculantseriesdeveIOps treatment Dmm0difiedPSACC, PAMandstarchundercenaincOnditiOn. ThetechnOlOgydeVel0pingOnenewcOmplexflOcculantandits India plicati0ninpOllutedwater Ding e puzzle rIentispresentedthepaper. ItndsthisfIOcculantfeaturesstrDngf10cculantanddecOlOrantfunctiOn, almOstwith0utregeneratiVepOIlutiOn. WithalOwc0st,[link widoczny dla zalogowanych], itist0bewidelyused. KedwOrds: cOmplexf1Occul; research; deVelOp; pOllutedwatertreatmem (on the next page 49) the electron density increased,[link widoczny dla zalogowanych], apparently induced effect is weaker than the conjugate effect, so the propane in the C. C bond of the electron density than the oxide is not very different. From the (p) point of view to know the three substituted compounds C. C covalent bond is followed by reduced but also are more typical of covalent bonds. And CH3. CH3 compared to its substitutes, C. C covalent bond stronger. ? watching from the ellipse, the values are relatively small near O, so do not 7c bonding properties, are typical. Key. But these three compounds C. C bond ellipticity and slightly larger than CH3. CH3 in C. C bond ellipticity (see Table 1). Note the presence of substituents, making the halides of the CC bond in diameter show a slight deformation of the nature of small 7r bond. This is also due. F,. Cl substituents result of conjugation. 4 Conclusion (1) above by two groups of compounds,[link widoczny dla zalogowanych], respectively, C. C bond analysis of the nature of the electron density topological analysis can be used from the theoretical calculations and confirm the proof of Properties of Homologous Compounds. (2) ethylene and acetylene by electronic analysis of Wu can see really can find saddle point 7c bond, and the nature of Homologous obvious. (3) of the oxide compared to its substitutes system proved from the theoretical point of view of substituents x (xF, C1, cH3) makes the presence of ethane in the C. C bond of the electron density increases, bond length causes a short delivery.
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