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Effect of High Pressure on the Molecular Structure and π-Electrons Delocalization of Canthaxanthin as Revealed by Raman Spectra
المؤلفون المشاركون
Ou-Yang, Shun-li
Wu, Nan-nan
Tian, Yan-jie
المصدر
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-5، 5ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-08-26
دولة النشر
مصر
عدد الصفحات
5
التخصصات الرئيسية
الملخص EN
The effect of high pressure on the molecular structure and π-electron delocalization of canthaxanthin was studied by in situ resonance Raman spectroscopy.
Changes in the characteristic band frequency and the pressure of canthaxanthin were described.
The effect of pressure on π-electron delocalization was also discussed.
Results show that the characteristic bands of canthaxanthin increase and reach high wavenumbers.
The correlations between Raman frequency of the three main bands and pressure are listed as follows: ν1(C=C) = 3.43P + 1512.3, ν2(C-C) = 3.29P + 1156.1, and ν3(CH3) = 2.16P + 1006.3.
The frequency multiplication of canthaxanthin changes as pressure is altered.
The pressure effect on the ν1(C=C) mode is more susceptible than on the ν2(C-C) mode, which can be explained by the fact that the β-ring twists to a larger angle from the plane of the conjugated main chain under high pressure, leading to a lower degree of the π-electrons delocalization.
The Raman spectra are recovered after the compression-decompression cycle indicating the canthaxanthin has no evident phase change under our experimental conditions.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ou-Yang, Shun-li& Wu, Nan-nan& Tian, Yan-jie. 2015. Effect of High Pressure on the Molecular Structure and π-Electrons Delocalization of Canthaxanthin as Revealed by Raman Spectra. Journal of Spectroscopy،Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1070297
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ou-Yang, Shun-li…[et al.]. Effect of High Pressure on the Molecular Structure and π-Electrons Delocalization of Canthaxanthin as Revealed by Raman Spectra. Journal of Spectroscopy No. 2015 (2015), pp.1-5.
https://search.emarefa.net/detail/BIM-1070297
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ou-Yang, Shun-li& Wu, Nan-nan& Tian, Yan-jie. Effect of High Pressure on the Molecular Structure and π-Electrons Delocalization of Canthaxanthin as Revealed by Raman Spectra. Journal of Spectroscopy. 2015. Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1070297
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1070297
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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