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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Photoelectron spectra and electronic structure of some 4-substituted 2-allylanisoles
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Photoelectron spectra and electronic structure of some 4-substituted 2-allylanisoles

机译:一些4-取代的2-烯丙基异戊二烯的光电子能谱和电子结构

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摘要

The electronic structures of 4-substituted 2-allyl anisoles (1-9) have been investigated by ultraviolet photoelectron spectroscopy and quantum chemical methods. The ionisation potentials corresponding to the pi MOs pi(2) and pi(3) of the phenyl ring, and the n(O) orbital of the methoxy group as well as the allylic pi(C=C) orbital could be determined and assigned for 1-9. Linear regression analyses of the IPs related to these orbitals with different substituent constants indicated that Hammett sigma(p) values performed satisfactorily to fair for pi(2), pi(3) and n(O) but poor for allylic pi(C=C). Other substituent constants such as R and R- were fair only for pi(2) and pi(3), but poor for n(O) and pi(C=C). (c) 2005 Elsevier B.V. All rights reserved.
机译:通过紫外光电子能谱和量子化学方法研究了4-取代的2-烯丙基茴香醚(1-9)的电子结构。可以确定并分配与苯环的pi MOs pi(2)和pi(3)以及甲氧基的n(O)轨道以及烯丙基pi(C = C)轨道相对应的电离势1-9。与具有不同取代基常数的这些轨道相关的IP的线性回归分析表明,对于pi(2),pi(3)和n(O),Hammett sigma(p)值的表现令人满意,但对于烯丙基pi(C = C)表现不佳)。其他取代基常数(例如R和R-)仅对pi(2)和pi(3)才是公平的,但对于n(O)和pi(C = C)则较差。 (c)2005 Elsevier B.V.保留所有权利。

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