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Veeramani S, Narayanan AP, Yuvaraj K, Sivaramakrishnan R, Pugazhendhi A, Rishivarathan I, Jose SP, Ilangovan R. Nigella sativa flavonoids surface coated gold NPs (Au-NPs) enhancing antioxidant and anti-diabetic activity. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Mohamed Ismail M, Vigneshwaran J, Arunbalaji S, Mani D, Arivanandhan M, Jose SP, Jayavel R. Antimonene nanosheets with enhanced electrochemical performance for energy storage applications. Dalton Trans 2020; 49:13717-13725. [PMID: 32996516 DOI: 10.1039/d0dt01753a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Antimonene is an exfoliated 2D nanomaterial obtained from bulk antimony. It is a novel class of 2D material for energy storage applications. In the present work, antimonene was synthesized using a high-energy ball milling-sonochemical method. The structural, morphological, thermal, and electrochemical properties of antimonene were comparatively analyzed against bulk antimony. X-ray diffractometry (XRD) analysis confirms the crystal structure and 2D structure of antimonene, as a peak shift was observed. The Raman spectra show the peak shift for the Eg and A1g modes of vibration of antimony, which confirms the formation of antimonene. Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) images depict the exfoliation of antimonene from bulk antimony. Thermal analysis unveiled the thermal stability of antimonene up to 400 °C with only 3% weight loss. X-ray photoelectron spectroscopy (XPS) analysis reveals the formation of antimonene, which is free from contamination. The electrochemical properties of antimony and antimonene were investigated using cyclic voltammetry (CV) and chronopotentiometric (CP) analysis, using 2 M KOH as an electrolyte. Antimonene exhibited a relatively high specific capacitance of 597 F g-1 compared to ball-milled antimony (101 F g-1) at a scan rate of 10 mV s-1. Moreover, electrochemical impedance spectroscopy (EIS) analysis revealed that antimonene has a relatively low equivalence series resistance (RESR) and low charge transfer resistance (RCT) compared to bulk antimony, which favors high electrochemical performance. The cyclic stability of antimonene was studied for 3000 cycles, and the results show high cyclic stability. The electrochemical results demonstrated that antimonene is a promising material for energy storage applications.
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Affiliation(s)
- M Mohamed Ismail
- Centre for Nanoscience and Technology, Anna University, Chennai-600025, India.
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Sivaprakash S, Prakash S, Mohan S, Jose SP. Quantum chemical studies and spectroscopic investigations on 22-amino-3-methyl-5-nitropyridine by density functional theory. Heliyon 2019; 5:e02149. [PMID: 31388583 PMCID: PMC6667931 DOI: 10.1016/j.heliyon.2019.e02149] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 05/17/2019] [Accepted: 07/22/2019] [Indexed: 11/30/2022] Open
Abstract
Quantum chemical calculations on energy and molecular structure of 2-amino-3-methyl-5-nitropyridine (2A3M5NP) have been attempted by implementing DFT/B3LYP method using 6-311G (d,p), 6-311G++ (d,p) and cc-pVTZ basis sets. The optimized geometry and the vibrational analysis for energetically most stable configuration, are carried out theoretically by using B3LYP/cc-pVTZ basis set. The computed vibrational frequencies were scaled by using scaling factors and compared with the experimental Fourier Transform Infra-Red (FTIR) solid phase spectrum in the region 4000-400 cm−1 and FT-Raman spectrum in the region 4000-100 cm−1. The complete vibrational assignments, analysis and correlation of fundamental modes of the compound have been carried out using the potential energy distribution (PED). The intramolecular charge transfer, hyperconjugative interaction of the compound is investigated from natural bonding orbital (NBO) analysis. The UV-Visible spectrum of 2A3M5NP was obtained with ethanol as a solvent. The electronic properties such as HOMO (Highest Occupied Molecular Orbital) and LUMO (Lowest Unoccupied Molecular Orbital) energies are determined by B3LYP/cc-pVTZ basis set. The electronic absorption spectrum of the compound was studied from UV-Visible analysis by using time-dependent density functional theory (TD-DFT). The electron density distribution and chemical reactive sites of 2A3M5NP were analyzed from molecular electrostatic potential (MEP) analysis and frontier molecular orbital (FMO) analysis.
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Affiliation(s)
- S Sivaprakash
- Department of Computational Physics, School of Physics, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
| | - S Prakash
- Departmentof Physics, VHNSN College, Virudhunagar, 626 001, Tamil Nadu, India
| | - S Mohan
- Department of Physics, S.A. Engineering College, Thiruverkadu, Chennai, 600 077, India
| | - Sujin P Jose
- Department of Computational Physics, School of Physics, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
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Jose J, Rajamani AR, Anandaram S, Jose SP, Peter SC, P B S. Photophysical and Electrochemical Studies of Anchored Chromium (III) Complex on Reduced Graphene Oxide via Diazonium Chemistry. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jemini Jose
- Department of ChemistryCHRIST (Deemed to be University) Bengaluru 560029 India
| | - Athimotlu Raju Rajamani
- New Chemistry Unit, School of Advanced MaterialsJawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bengaluru 560064 India
| | - Sreekanth Anandaram
- Department of ChemistryNational Institute of Technology Tiruchirappalli 620015 India
| | - Sujin P. Jose
- School of PhysicsMadurai Kamaraj University Madurai 625021 India
| | - Sebastian C. Peter
- New Chemistry Unit, School of Advanced MaterialsJawaharlal Nehru Centre for Advanced Scientific Research Jakkur Bengaluru 560064 India
| | - Sreeja P B
- Department of ChemistryCHRIST (Deemed to be University) Bengaluru 560029 India
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Asha S, Ananth AN, Jose SP, Rajan MAJ. Flexible and free-standing reduced graphene oxide thick films with PMMA stabilized silver nanoparticles, as a potential probe for cancer thermal therapy. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aae90c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Asha S, Ananth N, Jose SP, Jothi Rajan MA. Europium-Doped Hydroxyapatite Nanorods: Influence of Silver Doping. Int J Nanosci 2018. [DOI: 10.1142/s0219581x17600341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this work, we report the influence of silver nanoparticles of different size on the optical behavior of the europium-doped hydroxyapatite nanorods. The presence of ionic, plasmonically visible and silent (ultra-small) silver nanoparticles on the surface of europium-doped apatite and its influence on its luminescent behavior were discussed. It was found that ionic silver exhibited a concentration-dependent enhancement in emission at the excitation of europium. For plasmonically visible and silent silver nanoparticles, the emission observed was due to the contribution of the ligand passivating the europium-doped hydroxyapatite nanoparticle surface. These nanoparticles due to its luminescent and biocompatible nature can be used for bioimaging applications.
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Affiliation(s)
- S. Asha
- Bio-Nano Laboratory, PG and Research Department of Physics, Arul Anandar College, Karumathur, Madurai, Tamil Nadu, India
| | - Nimrodh Ananth
- MOE Key Laboratory for Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Sujin P. Jose
- School of Physics, Madurai Kamaraj University, Madurai, India
| | - M. A. Jothi Rajan
- Bio-Nano Laboratory, PG and Research Department of Physics, Arul Anandar College, Karumathur, Madurai, Tamil Nadu, India
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Asha S, Ananth AN, Jose SP, Rajan MAJ. Reduced graphene oxide aerogel networks with soft interfacial template for applications in bone tissue regeneration. Appl Nanosci 2018. [DOI: 10.1007/s13204-018-0803-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abinaya C, Prasankumar T, Jose SP, Anitha K, Ekstrum C, Pearce JM, Mayandi J. Synthetic Method Dependent Physicochemical Properties and Electrochemical Performance of Ni-Doped ZnO. ChemistrySelect 2017. [DOI: 10.1002/slct.201701584] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chandrasekaran Abinaya
- Department of Materials Science, School of Chemistry; Madurai Kamaraj University; Madurai - 625 021, Tamil Nadu India
| | - Thibeorchews Prasankumar
- Department of Computational Physics, School of Physics; Madurai Kamaraj University; Madurai - 625 021, Tamil Nadu India
| | - Sujin P Jose
- Department of Computational Physics, School of Physics; Madurai Kamaraj University; Madurai - 625 021, Tamil Nadu India
- Department of Materials Science and Nano Engineering; Rice University; Houston - 77005, Texas USA
| | - Kandasamy Anitha
- Department of Physics, School of Physics; Madurai Kamaraj University; Madurai - 625 021, Tamil Nadu India
| | - Craig Ekstrum
- Department of Materials Science and Engineering; Michigan Technological University; Houghton - 49931, Michigan USA
| | - Joshua M. Pearce
- Department of Materials Science and Engineering; Michigan Technological University; Houghton - 49931, Michigan USA
- Department of Electrical & Computer Engineering; Michigan Technological University; Houghton - 49931, Michigan USA
| | - Jeyanthinath Mayandi
- Department of Materials Science, School of Chemistry; Madurai Kamaraj University; Madurai - 625 021, Tamil Nadu India
- Department of Materials Science and Engineering; Michigan Technological University; Houghton - 49931, Michigan USA
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Asha S, Nimrodh Ananth A, Vanitha kumari G, Prakash B, Jose SP, Jothi Rajan M. Biocompatible fluorescent nano-apatite with ionic silver- Its antibacterial activity and cytotoxicity towards cancer cells. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.matpr.2017.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Venkatesh KS, Gopinath K, Palani NS, Arumugam A, Jose SP, Bahadur SA, Ilangovan R. Plant pathogenic fungus F. solani mediated biosynthesis of nanoceria: antibacterial and antibiofilm activity. RSC Adv 2016. [DOI: 10.1039/c6ra05003d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study reports the synthesis of CeO2 nanoparticles using Fusarium solani. The biosynthesized CeO2 nanoparticles were subjected to different characterization techniques and also showed potential antibacterial and antibiofilm activities.
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Affiliation(s)
- K. S. Venkatesh
- Multifunctional Materials Laboratory
- Department of Physics
- International Research Centre
- Kalasalingam University
- Krishnankoil-626 126
| | - K. Gopinath
- Department of Nanoscience and Technology
- Alagappa University
- Karaikudi-630 003
- India
| | - N. S. Palani
- Department of Nanoscience and Technology
- Alagappa University
- Karaikudi-630 003
- India
| | - A. Arumugam
- Department of Nanoscience and Technology
- Alagappa University
- Karaikudi-630 003
- India
| | - Sujin P. Jose
- Department of Computational Physics
- School of Physics
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - S. Asath Bahadur
- Multifunctional Materials Laboratory
- Department of Physics
- International Research Centre
- Kalasalingam University
- Krishnankoil-626 126
| | - R. Ilangovan
- National Centre for Nanoscience and Nanotechnology
- Guindy Campus
- University of Madras
- Chennai-600 025
- India
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Jose SP, Tiwary CS, Kosolwattana S, Raghavan P, Machado LD, Gautam C, Prasankumar T, Joyner J, Ozden S, Galvao DS, Ajayan PM. Enhanced supercapacitor performance of a 3D architecture tailored using atomically thin rGO–MoS2 2D sheets. RSC Adv 2016. [DOI: 10.1039/c6ra20960b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A stable, conductive, additive-free and scalable 3D architecture supercapacitor electrode fabricated by atomically thin 2D sheets of GO and MoS2 shows superior electrochemical properties which are further substantiated using MD simulations.
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Affiliation(s)
- Sujin P. Jose
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
- School of Physics
| | | | | | - Prasanth Raghavan
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
| | - Leonardo D. Machado
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
- Department of Applied Physics
| | - Chandkiram Gautam
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
- Department of Physics
| | - T. Prasankumar
- School of Physics
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Jarin Joyner
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
| | - Sehmus Ozden
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
| | - Douglas S. Galvao
- Department of Applied Physics
- State University of Campinas
- Campinas
- Brazil
| | - P. M. Ajayan
- Department of Materials Science and Nano Engineering
- Rice University
- Houston
- USA-77005
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Arjunan V, Thillai Govindaraja S, Jose SP, Mohan S. DFT simulation, quantum chemical electronic structure, spectroscopic and structure-activity investigations of 2-benzothiazole acetonitrile. Spectrochim Acta A Mol Biomol Spectrosc 2014; 128:22-36. [PMID: 24662754 DOI: 10.1016/j.saa.2014.02.187] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
The Fourier transform infrared and FT-Raman spectra of 2-benzothiazole acetonitrile (BTAN) have been recorded in the range 4000-450 and 4000-100 cm(-1) respectively. The conformational analysis of the compound has been carried out to obtain the stable geometry of the compound. The complete vibrational assignment and analysis of the fundamental modes of the compound are carried out using the experimental FTIR and FT-Raman data and quantum chemical studies. The experimental vibrational frequencies are compared with the wavenumbers derived theoretically by B3LYP gradient calculations employing the standard 6-31G(**), high level 6-311++G(**) and cc-pVTZ basis sets. The structural parameters, thermodynamic properties and vibrational frequencies of the normal modes obtained from the B3LYP methods are in good agreement with the experimental data. The (1)H (400 MHz; CDCl3) and (13)C (100 MHz;CDCl3) nuclear magnetic resonance (NMR) spectra are also recorded. The electronic properties, the energies of the highest occupied and lowest unoccupied molecular orbitals are measured by DFT approach. The kinetic stability of the molecule has been determined from the frontier molecular orbital energy gap. The charges of the atoms and the structure-chemical reactivity relations of the compound are determined by its chemical potential, global hardness, global softness, electronegativity, electrophilicity and local reactivity descriptors by conceptual DFT methods. The non-linear optical properties of the compound have been discussed by measuring the polarisability and hyperpolarisability tensors.
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Affiliation(s)
- V Arjunan
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India.
| | | | - Sujin P Jose
- School of Physics, Madurai Kamaraj University, Madurai 625 021, India
| | - S Mohan
- School of Sciences and Humanities, Vel Tech University, Avadi, Chennai 600 032, India
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Jayaprakash A, Arjunan V, Jose SP, Mohan S. Vibrational and electronic investigations, thermodynamic parameters, HOMO and LUMO analysis on crotonaldehyde by ab initio and DFT methods. Spectrochim Acta A Mol Biomol Spectrosc 2011; 83:411-419. [PMID: 21930418 DOI: 10.1016/j.saa.2011.08.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 08/18/2011] [Accepted: 08/24/2011] [Indexed: 05/31/2023]
Abstract
The energy, geometrical parameters and vibrational wavenumbers of crotonaldehyde were calculated by using ab initio and B3LYP with 6-31G(d,p) and 6-311G(d,p) basis sets. The FT-IR and FT-Raman spectra for liquid state crotonaldehyde have been recorded in the region 3400-400 cm(-1) and 3400-100 cm(-1), respectively and compared with the theoretical spectrographs constructed from the scaled harmonic vibrational frequencies calculated at HF and DFT levels. The difference between the observed and scaled wavenumber values of most of the fundamentals is very small. Detailed interpretations on vibrational modes have been made on the observed and theoretical spectra and PED for each mode was also reported more precisely. HOMO and LUMO energy levels are constructed and the corresponding theoretical frontier energy gaps are calculated to realise the charge transfer occurring in the molecule. The thermodynamic properties of the title compound have been calculated at different temperatures and the results reveals the standard heat capacities (C(0)(p)), standard entropies (S(0)) and standard enthalpy changes (ΔH(0)) increases with rise in temperature.
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Affiliation(s)
- A Jayaprakash
- Department of Physics, Rajiv Gandhi College of Engineering and Technology, Puducherry, India
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Pengo V, Cucchini U, Denas G, Davidson BL, Marzot F, Jose SP, Iliceto S. Lower versus standard intensity oral anticoagulant therapy (OAT) in elderly warfarin-experienced patients with non-valvular atrial fibrillation. Thromb Haemost 2010; 103:442-9. [PMID: 20076843 DOI: 10.1160/th09-05-0311] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 11/12/2009] [Indexed: 11/05/2022]
Abstract
It has been observed that elderly patients with nonvalvular atrial fibrillation (NVAF) benefit from standard [an international normalised ratio (INR) goal of 2.0-3.0] oral anticoagulant treatment (OAT). The hypothesis that lower-intensity anticoagulation therapy can offset the higher bleeding risk in this population has never been tested in an 'ad hoc' clinical trial. Patients over 75 years of age with NVAF were randomised to receive warfarin to maintain the INR at 1.8 (range 1.5-2.0) or at a standard target of 2.5 (range 2.0-3.0). There were 135 patients in the low-intensity and 132 in the standard-intensity groups. During a mean follow-up lasting 5.1 years, 59 primary outcome events (thromboembolism and major haemorrhage) were recorded, 24 (3.5 per 100 patient-years) in the low-intensity group and 35 (5.0 per 100 patient-years) in the standard-intensity group (HR=0.7, 95% CI 0.4-1.1, p=0.1). The reduction in the primary endpoint was mainly due to a diminution in major bleedings (1.9 vs. 3.0 per 100 patient-years; HR=0.6, 95% CI 0.3-1.2, p=0.1). The median achieved INR value was 1.86 in the low-intensity and 2.24 in the standard-intensity group (p<0.001). The frequency of INR testing was 26.1 +/- 13.5 vs. 24.3 +/- 11.6 days, p<0.0001). In this exploratory study we observed a low rate of stroke and major bleeding in elderly patients (>75) being managed in an anticoagulation clinic for primary stroke prevention with low-intensity anticoagulation (INR 1.5-2.0). However, further trials are needed to confirm the hypothesis generated by the present study.
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Affiliation(s)
- V Pengo
- Clinical Cardiology, Thrombosis Center, University of Padova School of Medicine, Via Giustiniani 2, 35128 Padova, Italy.
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Karthikeyan B, Mohan S, Jose SP. Preparation and characterization of Nd3+ doped sodium leadbismuthate glass. Spectrochim Acta A Mol Biomol Spectrosc 2006; 65:1134-7. [PMID: 16714142 DOI: 10.1016/j.saa.2006.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2005] [Accepted: 01/30/2006] [Indexed: 05/09/2023]
Abstract
Nd(3+) doped unconventional sodium leadbismuthate glass is prepared through the melt quenching method. The amorphous nature of the glass is confirmed through the X-ray diffraction study. The differential thermal study was performed to identify the glass transition and approximate glass thermal stability measurements. To identify the local structure of the glass, Fourier transform infrared spectral analysis was also carried out. By performing the Judd-Ofelt theory, the theoretical and experimental oscillator strengths were calculated.
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Affiliation(s)
- B Karthikeyan
- Raman School of Physics, Pondicherry University, Pondicherry 605014, India
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Jose SP, Mohan S. Vibrational spectra and normal co-ordinate analysis of 2-aminopyridine and 2-amino picoline. Spectrochim Acta A Mol Biomol Spectrosc 2006; 64:240-5. [PMID: 16406840 DOI: 10.1016/j.saa.2005.06.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2005] [Revised: 06/02/2005] [Accepted: 06/21/2005] [Indexed: 05/06/2023]
Abstract
The Fourier transform infrared (FT-IR) and Raman (FT-R) spectra of 2-aminopyridine and 2-amino picoline were recorded and the observed frequencies were assigned to various modes of vibration in terms of fundamentals by assuming Cs point group symmetry. A normal co-ordinate analysis was also carried out for the proper assignment of the vibrational frequencies using simple valence force field. A complete vibrational analysis is presented here for the molecules and the results are briefly discussed.
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Jose SP, Mohan S. FT-IR and FT-RAMAN investigations of nicotinaldehyde. Spectrochim Acta A Mol Biomol Spectrosc 2006; 64:205-9. [PMID: 16542868 DOI: 10.1016/j.saa.2005.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2005] [Revised: 06/02/2005] [Accepted: 06/21/2005] [Indexed: 05/07/2023]
Abstract
The Fourier transform Raman and infrared spectra of nicotinaldehyde were recorded and the observed frequencies were assigned to various modes of vibration in terms of fundamentals by assuming Cs point group symmetry. A normal coordinate analysis was also carried out using a simple valence force field. A complete vibrational analysis is presented here for this molecule and the results are briefly discussed.
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Abstract
The Fourier transform Raman and infrared spectra of carbamoylazide and its deuterated derivative were recorded and the observed frequencies were assigned to various modes of vibration in terms of fundamentals and combinations by assuming C(s) point group symmetry. A normal coordinate analysis was also carried out using Simple valence force field. A complete vibrational analysis is presented here for these molecule and results are briefly discussed.
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Affiliation(s)
- S Mohan
- Raman School of Physics, Pondicherry University, Pondicherry 605 014, India.
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