1
|
Sangeetha P, Sangeetha R, Mullainathan S, Irfan A, Sevvanthi S, Muthu S. Molecular docking evaluation and spectroscopic study of 2-amino-1,4-benzenedisulfonic acid using the IEFPCM model, electronic properties of different solvents. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
2
|
Electronic properties of solvents (Water, Benzene, Ethanol) using IEFPCM model, spectroscopic exploration with drug likeness and assessment of molecular docking on 1-Octanesulfonic Acid Sodium Salt. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
3
|
Arulaabaranam K, Muthu S, Mani G, Sevvanthi S. Quantum mechanical computation, spectroscopic exploration and molecular docking analysis of 2-Bromo-4-fluoroacetanilide. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Xue J, Li Y, Du L, Du Y, Tang W, Zheng X, Phillips DL. Direct Observation of 4-Phenoxyphenylnitrenium Ion: A Transient Absorption and Transient Resonance Raman Study. J Phys Chem B 2015; 119:14720-7. [PMID: 26503835 DOI: 10.1021/acs.jpcb.5b07218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Femtosecond (fs) and nanosecond (ns) transient absorption (TA) and single pulse transient resonance Raman spectroscopic investigation of the intermediates after laser photolysis of 4-phenoxyphenyl azide in acetonitrile and mixed aqueous solution is reported. fs-TA results show that the singlet 4-phenoxyphenylnitrene was produced immediately after photolysis of the azide. Then, the singlet nitrene underwent intersystem crossing (ISC) and ring expansion to generate triplet nitrene and ketenimine in acetonitrile with t = 346 ps or protonation in mixed aqueous solution with t = 37 ps, respectively, a little slower than the counterparts of the methoxy one (108 and 5.4 ps for ISC and protonation processes, respectively). The transient Raman spectrum combined density functional theory (DFT) calculation predicting the structure and vibrational frequencies suggested that phenoxyphenylnitrenium ion has a comparable quinoidal character to that of methoxy- and ethoxy-phenylnitrenium ions. All of these results indicated that the phenoxy substitution has some impact on the reactivity of phenylnitrene but a slight influence on the structure of phenylnitrenium ion.
Collapse
Affiliation(s)
- Jiadan Xue
- Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University , Hangzhou, 310018, China.,Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, 310018, China
| | - Yafang Li
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, 310018, China
| | - Lili Du
- Department of Chemistry, The University of Hong Kong , Hong Kong, S. A. R., China
| | - Yong Du
- Centre for THz Research, China Jiliang University , Hangzhou, 310018, China
| | - Wenjian Tang
- School of Pharmacy, Anhui Medical University , Hefei, 230032, China
| | - Xuming Zheng
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, 310018, China
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong , Hong Kong, S. A. R., China
| |
Collapse
|
5
|
Xue J, Vyas S, Du Y, Luk HL, Chuang YP, But TYS, Toy PH, Wang J, Winter AH, Phillips DL, Hadad CM, Platz MS. Time-Resolved Resonance Raman and Computational Investigation of the Influence of 4-Acetamido and 4-N-Methylacetamido Substituents on the Chemistry of Phenylnitrene. J Phys Chem A 2011; 115:7521-30. [PMID: 21648388 DOI: 10.1021/jp201821d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jiadan Xue
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Shubham Vyas
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yong Du
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Hoi Ling Luk
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yung Ping Chuang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Tracy Yuen Sze But
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Patrick H. Toy
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Jin Wang
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Arthur H. Winter
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., People's Republic of China
| | - Christopher M. Hadad
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Matthew S. Platz
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| |
Collapse
|
6
|
Qi SF, Wang XN, Yang ZZ, Xu XH. Evidence of direct formation of C8 adducts in carcinogenic reactions of arylnitrenium ions with purine nucleosides: Theoretical study of C8 deprotonation process. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Abraham JP, Sajan D, Joe IH, Jayakumar VS. Molecular structure, spectroscopic studies and first-order molecular hyperpolarizabilities of p-amino acetanilide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 71:355-367. [PMID: 18321771 DOI: 10.1016/j.saa.2008.01.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 12/22/2007] [Accepted: 01/02/2008] [Indexed: 05/26/2023]
Abstract
The infrared absorption, Raman spectra and SERS spectra of p-amino acetanilide have been analyzed with the aid of density functional theory calculations at B3LYP/6-311G(d,p) level. The electric dipole moment (mu) and the first hyperpolarizability (beta) values of the investigated molecule have been computed using ab initio quantum mechanical calculations. The calculation results also show that the synthesized molecule might have microscopic nonlinear optical (NLO) behavior with non-zero values. Computed geometries reveal that the PAA molecule is planar, while secondary amide group is twisted with respect to the phenyl ring is found, upon hydrogen bonding. The hyperconjugation of the C=O group with adjacent C-C bond and donor-acceptor interaction associated with the secondary amide have been investigated using computed geometry. The carbonyl stretching band position is found to be influenced by the tendency of phenyl ring to withdraw nitrogen lone pair, intermolecular hydrogen bonding, conjugation and hyperconjugation. The existence of intramolecular C=O...H hydrogen bonded have been investigated by means of the natural bonding orbital (NBO) analysis. The influence of the decrease of N-H and C=O bond orders and increase of C-N bond orders due to donor-acceptor interaction has been identified in the vibrational spectra. The SERS spectral analysis reveals that the large enhancement of in-plane bending, out of plane bending and ring breathing modes in the surface-enhanced Raman scattering spectrum indicates that the molecule is adsorbed on the silver surface in a 'atleast vertical' configuration, with the ring perpendicular to the silver surface.
Collapse
Affiliation(s)
- Jose P Abraham
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram 695015, Kerala, India
| | | | | | | |
Collapse
|
8
|
Density functional theory study of water-assisted deprotonation of the C8 intermediate in the reaction of the 2-fluorenylnitrenium ion with guanosine to form a C8 adduct. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.theochem.2007.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
9
|
Nitrenium Ions and Problem of Direct Electrophilic Amination of Aromatic Compounds. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2005. [DOI: 10.1007/s11178-005-0193-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|