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羰基化合物分子距边矢量与其^(13)CNMRδ_C的关系

Relationship between Molecular Distance-Edge Vector and ^(13)C Chemical Shifts of Carbonyl Compounds
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摘要 通过对155个羰基化合物中羰基碳原子的13CNMR谱与其分子距离边数矢量(MDE)、立体效应参数(γ效应)关系的研究,发现羰基化合物羰基碳的13CNMR谱化学位移可表示为:δC=a+bμ51+cμ52+dμ53+eμ54+fγ此式不仅在一定程度上表明了羰基化合物13CNMR谱化学位移与其分子结构信息之间的关系,同时也提供了一种计算羰基化合物13CNMR化学位移的新方法,并对解析和预测其13CNMR谱提供了理论依据. Carbon-13 chemical shifts of 155 carbonyl groups were measured from 155 carbonyl compounds. The relationships between the ^13C chemical shifts and the molecular distance-edge vector (MDE) and the γ parameter of the compounds were studied. The results indicated that the ^13C chemical shifts of carbonyl compounds could be calculated by following equation:δc=a+bμ51+cμ52+dμ53+eμ54+fγ.
出处 《波谱学杂志》 CAS CSCD 北大核心 2006年第1期71-80,共10页 Chinese Journal of Magnetic Resonance
基金 山西省自然科学基金资助项目(20041013)
关键词 ^13C NMR 羰基化合物 化学位移 分子距离-边数矢量 γ效应 ^13C NMR carbonyl compound, chemical shift, molecular distance-edge vector, γ parameter
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  • 1Ning Yong-cheng(宁永成).StructureIdentifying of Organic Compound and Organic Spectroscopy(有机化合物结构鉴定与有机波谱学)[M].北京:科学出版社,2000.1-2.
  • 2Meiler J,Meusinger R,Will M.Fast Determination of 13C NMR Chemical Shifts Using Artificial Neural Networks[J].J Chem Inf Comput Sci,2000,40:1 169-1 176.
  • 3Jaramillo J C P,Velazco D R M,Baldrich C.Semiquantitative Analysis of Thiophenic Compounds in Light Cycle Oil (LCO) Using 13C NMR Spectroscopy[J].Fuel,2004,83:337-342.
  • 4Rufino A R,Brant A J C,Santos J B O,et al.Simple Method for Identification of Skeletons of Aporphine Alkaloids from 13C NMR Data Using Artificial Neural Networks[J].J Chem Inf Model,2005,453(3):645-651.
  • 5Tenailleau E J,Lancelin P,Robins R J,et al.Authentication of the Origin of Vanillin Using Quantitative Natural Abundance 13C NMR[J].J Agric Food Chem,2004,52:7 782-7 787.
  • 6Benzi C,Cossi M,Barone V,et al.A Combined Theoretical and Experimental Approach to Determing Order Parameters of Solutes in Liquid Crystals from 13C NMR Data[J].J Phys Chem B,2005,109:2 584-2 590.
  • 7Witkowski S,Maciejewska D,Wawer I.13C NMR Studies of Conformational Dynamics in 2,2,5,7,8 -pentameth-ylchroman-6-ol Derivatives in Solution and the Solid State[J].J Chem Soc Perkin Trans 2,2000,1 471-1 476.
  • 8Neuvonen H,Neuvonen K.Correlation Analysis of Carbonyl Carbon 13C NMR Chemical Shifts,IR Absorption Frequencies and Rate Coefficients of Nucleophilic Acyl Substitutions.A Novel Explanation for the Substituent Dependence or Reactivity[J].J Chem Soc Perkin Trans 2,1999,1 497-1 502.
  • 9Grant D M,Paul E G.Carbon-13 Magnatic Resonance Ⅱ Chemical Shift Data for the Alkanes[J].J Am Chem Soc,1964,86:2 984-2 990.
  • 10Lindeman L P,Adams J Q.Carbon-13 Nuclear Magnatic Resonance Spectrometry.Chemical Shifts for the ParaffinsthroughC9[J].AnalChem,1971,43(10):1 245-1 252.

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