Vibrational Frequencies, Structural Confirmation Stability and Homo-lumo Analysis of Nicotinic Acid Ethyl Ester with Experimental (ft-ir and Ft-raman) Techniques and Quantum Mechanical Calculations

ثبت نشده
چکیده

The use of nicotinic acid derivatives in the field of medicinal, biomedical industries, production of cosmetics, pesticides, agro chemical industries and its biological activities have been studied extensively over the past decades. In this chapter, one of such nicotinic acid derivative called Nicotinic Acid Ethyl Ester (also known ethyl nicotinate, Ethyl 3-pyridinecarboxylate and 3-pyridinecarboxylic acid, ethyl ester) have been choosen for the study so as to interpret its vibrational frequencies, structural conformational stabilities, thermal properties, HOMO-LUMO analysis using FTIR and FT-Raman Spectra. In this title molecule, the H atom in the nicotinic acid was replaced by CH2-CH3 group

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vibrational spectra, nonlinear optical properties, NBO analysis and thermodynamic properties of N-phenylethanolamine by density functional method

In the present work, we reported a combined experimental and theoretical study on molecular structure and vibrational analysis of N-phenylethanolamine (NPEA). FT-IR and FT-Raman spectra of the title compound in the solid phase are recorded in the region 4000–400 cm and 3500–100 cm, respectively. The structural and spectroscopic data of the molecule in the ground state is calculated using densit...

متن کامل

FT-IR, FT-Raman, ab initio and DFT structural, vibrational frequency and HOMO-LUMO analysis of 1-naphthaleneacetic acid methyl ester.

In this work, the FT-IR and FT-Raman spectra of 1-naphthaleneacetic acid methyl ester (abbreviated as 1-NAAME, C(10)H(7)CH(2)CO(2)CH(3)) have been recorded in the region 3600-10 cm(-1). The optimum molecular geometry, normal mode wavenumbers, infrared and Raman intensities, Raman scattering activities, corresponding vibrational assignments, Mullikan atomic charges and other thermo-dynamical par...

متن کامل

Molecular structure, FT-IR and FT-Raman spectra and HOMO- LUMO analysis of 2-methoxy-4-nitroaniline using ab initio HF and DFT (B3LYP/B3PW91) calculations

Fourier-Transform infrared and Fourier-Transform Raman spectra of 2-methoxy-4nitroaniline(2M4NA) was recorded in the region 4000 – 400 cm and 3500 – 100 cm .Quantum chemical calculations of energies, geometrical structure and vibrational wavenumbers of 2M4NA were carried out by ab initio HF/6-311G(d,p) and DFT (B3LYP/6-311G(d,p) and B3PW91/6-311G(d,p)) levels of theory with complete relaxation ...

متن کامل

Vibrational (FT-IR and FT-Raman) spectra and quantum chemical studies on the molecular structure of p-hydroxy-N-(p-methoxy benzylidene) aniline

The FT-IR and FT-Raman spectra of p-hydroxy-N-(p-methoxy benzylidene) aniline have been recorded in the region 4000-400 cm and 3500-100 cm, respectively. The optimized molecular geometry, vibrational frequencies in ground state have been calculated using density functional B3LYP methods (DFT) with 6-31+G(d,p) and 6-311++G(d,p) basis sets. The observed FT-IR and FT-Raman vibrational frequencies ...

متن کامل

Vibrational Spectroscopic (FTIR And FT-Raman) Studies, HOMO LUMO Analysis, NMR Chemical Shifts And Electrostatic Potential Surface Of 2, 3- Dibromofuran

The FTIR and FT Raman spectra of 2,3dibromofuran have been recorded in the region 4000-400 cm -1 and 4000-100 cm -1 respectively. The optimized geometry, frequency and intensity of vibrational bands of 2,3-dibromofuran were obtained by Density Functional Theory (DFT) using 6-311++G(d,p) basis set. The harmonic vibrational frequencies were calculated and scaled values have been compared with exp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012