کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1280221 | 1497681 | 2007 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new electronic theory of pericyclic chemistry and aromaticity is proposed: The Cplex-isoelectronic theory. Consistent with Santilli's hadronic chemistry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A new electronic theory of pericyclic chemistry and aromaticity is proposed: The Cplex-isoelectronic theory. Consistent with Santilli's hadronic chemistry A new electronic theory of pericyclic chemistry and aromaticity is proposed: The Cplex-isoelectronic theory. Consistent with Santilli's hadronic chemistry](/preview/png/1280221.png)
چکیده انگلیسی
A new electronic theory of pericyclic chemistry and aromaticity, in line with the Robinson/Ingold electronic theory, is proposed. It is referred to as the Cplex-isoelectronic theory. This represents the first successful theory that is not based on quantum mechanics. There are three assumptions in this theory (1) ADEP, (2) SDEP and (3) SDSE. The ADEP assumption refers to isoelectron pairs moving in an antiperiplanar mode in relation to the plane of the molecule. SDEP relates to isoelectron pairs moving in a synperiplanar mode and SDSE refers to single isoelectrons moving in a synperiplanar mode. These assumptions are deduced from nucleophilic, radical addition, SN2 and SN2â² reactions and the anomeric effect. Application of the ADEP concept to pericyclic reactions is supported by Complexity theory and backed up by direct empirical evidence from 1,3-dipolar cycloaddition reactions involving nitronates and by its ability to predict the experimental data. The heavy atom effect provides experimental evidence for the SDSE mode in pericyclic reactions. The HOMO Diels-Alder is consistent with the SDEP concept. Evidence for the assumptions in aromatic compounds is found in the observation of a diamagnetic ring current in the presence of an applied field and in the applicability of the Biot-Savart law. The Cplex-isoelectronic theory makes different predictions from the present quantum chemical methods in some cases, namely the existence of suprafacial concerted thermal [2+2], [4+4], [6+2] and [6+6] cycloadditions, suprafacial concerted photochemical [4+2] and [6+4] cycloadditions, stepwise [2+2+2] cycloadditions of ethyne, diamagnetic ring currents for some cyclic systems with 4nÏ electrons. The available empirical evidence is consistent with these predictions. This finding is consistent with Santilli's hadronic chemistry which proposes that the present quantum chemical theories require the addition of a small correction factor for molecules with two or more electrons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 32, Issue 2, February 2007, Pages 159-171
Journal: International Journal of Hydrogen Energy - Volume 32, Issue 2, February 2007, Pages 159-171
نویسندگان
Martin O. Cloonan,