On the Relevance of Considering the Intermolecular Interactions on the Prediction of the Vibrational Spectra of Isopropylamine
المؤلفون المشاركون
Ribeiro-Claro, Paulo J. A.
Amado, Ana M.
Fiuza, Sónia M.
Batista de Carvalho, Luis A. E.
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-11-05
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
The effects of implicitly considering the effects of hydrogen bonding on the molecular properties, such as vibrational frequencies, were inferred on the basis of DFT calculations.
Several clusters of isopropylamine were assembled and theoretically characterized.
The results showed that maximum H-bond cooperativity is achieved when the amine group acts simultaneously as donor and acceptor.
The effect of H-bond cooperativity manifests itself in the relative cluster stability and on the structural and vibrational frequency predictions.
Referring to the vibrational frequencies it was found that the NH2 stretching and torsion vibrational modes are the most affected by the amine involvement in hydrogen bonding.
Both stretching modes were found to be significantly redshifted relative to the monomer.
The NH2 torsional mode, on the other hand, was found to be blueshifted up to 350 cm-1.
Finally, the comparative study between the theory levels performed allows to conclude that the small 6-31G* basis set is able to stabilize weak C–H⋯N interactions as long as the new dispersion corrected DFT methods are considered.
The impairments observed with conventional DFT methods for describing weak interactions may be overcome with the improvement of basis set, but the associated increase of computational costs may turn the calculations unfeasible.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Amado, Ana M.& Fiuza, Sónia M.& Batista de Carvalho, Luis A. E.& Ribeiro-Claro, Paulo J. A.. 2013. On the Relevance of Considering the Intermolecular Interactions on the Prediction of the Vibrational Spectra of Isopropylamine. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-490170
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Amado, Ana M.…[et al.]. On the Relevance of Considering the Intermolecular Interactions on the Prediction of the Vibrational Spectra of Isopropylamine. Journal of Chemistry No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-490170
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Amado, Ana M.& Fiuza, Sónia M.& Batista de Carvalho, Luis A. E.& Ribeiro-Claro, Paulo J. A.. On the Relevance of Considering the Intermolecular Interactions on the Prediction of the Vibrational Spectra of Isopropylamine. Journal of Chemistry. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-490170
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-490170
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر