کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1250974 | 970879 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the dehydrogenation of N,N′-substituted p-phenylenediamine antioxidants: II. N-Phenyl-N′-(α-methylbenzyl)-p-phenylenediamine (SPPD)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: On the dehydrogenation of N,N′-substituted p-phenylenediamine antioxidants: II. N-Phenyl-N′-(α-methylbenzyl)-p-phenylenediamine (SPPD) On the dehydrogenation of N,N′-substituted p-phenylenediamine antioxidants: II. N-Phenyl-N′-(α-methylbenzyl)-p-phenylenediamine (SPPD)](/preview/png/1250974.png)
چکیده انگلیسی
Using B3LYP/6-31G* treatment, the optimal geometries, electronic structures and IR spectra of N-phenyl-N′-(α-methylbenzyl)-p-phenylenediamine antioxidant (SPPD) and of its double dehydrogenated oxidation products have been obtained. Experimental IR spectra of SPPD sample heated on air at 140 °C correspond to the double dehydrogenated SPPD structure with the phenyl–NC ketimine double bond and not to its N,N′-dehydrogenated quinonediimine-type counterpart as supposed in the literature. This finding supports the idea of preferential dehydrogenation at N-bonded tertiary carbon atom in comparison with the amine nitrogen bonded to two phenyl rings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vibrational Spectroscopy - Volume 44, Issue 1, 15 May 2007, Pages 1–8
Journal: Vibrational Spectroscopy - Volume 44, Issue 1, 15 May 2007, Pages 1–8
نویسندگان
Anton Gatial, Júlia Polovková, Ingrid Kortišová, Martin Breza,