Výsledky vyhledávání

Adsorption of 4-Mercapto Pyridine with Gold Nanoparticles Embedded in the Langmuir–Blodgett Film Matrix of Stearic Acid: SERS, XPS Studies Aided by Born–Oppenheimer on the Fly Dynamics, Time–Resolved Wavelet Transform Theory, and DFT

Autor: Somsubhra Saha, Bipan Dutta, Manash Ghosh, Joydeep Chowdhury

Publikováno v: ACS Omega. 7:27818-27830

This paper reports the adsorptive behavior of the 4-mercaptopyridine (4MPy) molecule soaked in gold nanoparticles (AuNPs) that remain embedded in the bilayer Langmuir-Blodgett (LB) film matrix of stearic acid (SA) for various soaking times (STs). The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a79ef611506f039cdffc895d3a33a054
https://doi.org/10.1021/acsomega.1c07321

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Role of gold nanocolloids on the photostability of 2-hydroxy-5-methyl benzaldehyde molecule and evidence of excited state intramolecular proton transfer process aided by DFT, non-adiabatic Ab Initio molecular dynamics simulations

Autor: Tapan Ganguly, Gopa Dutta Pal, Bipan Dutta, Joydeep Chowdhury

Publikováno v: Journal of Luminescence. 188:378-387

The role of gold nanocolloids (AuNCs) on the photostability of 2-hydroxy-5-methyl benzaldehyde (HMBZ) molecule under UV exposures has been investigated using UV–vis absorption and fluorescence spectroscopic techniques. The experimental observations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ca35fe54735b70baf1e2dc5c3bddb46
https://doi.org/10.1016/j.jlumin.2017.04.038

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Photophysical behavior of layer-by-layer electrostatic self-assembled film of azo dye Chromotrope-2R and a polycation

Autor: Chaitali Hansda, Pabitra Kumar Paul, Tanmoy Singha, Utsav Chakraborty, Syed Arshad Hussain, Bipan Dutta, Sharmistha Paul, Debajyoti Bhattacharjee

Publikováno v: Journal of Luminescence. 178:347-355

This communication reports the fabrication of layer-by-layer electrostatic self-assembled films of an azo dye Chromotrope-2R (CH2R) and a Polycation poly(allylamine hydrochloride) (PAH) onto solid substrate. UV–vis absorption and steady state fluor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b45864a726a59357a3a5979e3c740041
https://doi.org/10.1016/j.jlumin.2016.06.017

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Silver coated gold nanocolloids entrapped in organized Langmuir–Blodgett Film of stearic acid: Potential evidence of a new SERS active substrate

Autor: Bipan Dutta, Somsubhra Saha, Joydeep Chowdhury, Manash Ghosh

Publikováno v: Applied Surface Science. 362:364-373

SERS active substrate containing silver coated gold (Au@Ag) nanocolloids entrapped in the Langmuir–Blodgett (LB) film matrix of stearic acid (SA) has been reported. The SERS efficacy of the as prepared substrate has been tested with trace concentra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c262803e9d4356980c0f45d9c00d6f7b
https://doi.org/10.1016/j.apsusc.2015.11.137

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Prototropic tautomerism of 4-Methyl 1,2,4-Triazole-3-Thione molecule in solvent water medium: DFT and Car–Parrinello molecular dynamics study

Autor: Bipan Dutta, Joydeep Chowdhury, Rina De

Publikováno v: Chemical Physics. 463:30-37

The ground state prototropic tautomerism of 4-Methyl 1,2,4-Triazole-3-Thione molecule in solvent water medium has been investigated with the aid of DFT and Car–Parrinello molecular dynamics (CPMD) simulation studies. The CPMD simulations envisage t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9747d6ee6a5af7068d5d24c88fda2146
https://doi.org/10.1016/j.chemphys.2015.09.017

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Self-assembly of silver nanocolloids in the Langmuir-Blodgett Film of stearic acid: Evidence of an efficient SERS sensing platform

Autor: Bipan Dutta, Manash Ghosh, Somsubhra Saha, Joydeep Chowdhury

Publikováno v: Journal of Raman Spectroscopy. 47:168-176

Highly sensitive surface-enhanced Raman scattering active substrate obtained by self-assembly of silver nanocolloids (AgNCs) in the bilayer Langmuir–Blodgett (LB) film of stearic acid (SA) has been reported. Rhodamine 6G (R6G) has been used as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a2579e403833ae1b9274892041f0892
https://doi.org/10.1002/jrs.4771

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Origins of threefold rotational barriers of molecule containing two methyl groups: Ethyl propionate as paradigm

Autor: Joydeep Chowdhury, Bipan Dutta

Publikováno v: Chemical Physics Letters. 612:89-96

Origins of the rotational barriers of TG − form of ethyl propionate molecule have been investigated. The barrier heights, as determined from the Raman spectrum, are estimated to be 2.88 and 3.17 kcal/mol for the –CH 3 (I) and –CH 3 (II) methyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a26eb3a1b357cd4f697e942ff44e3d2d
https://doi.org/10.1016/j.cplett.2014.07.075

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Existence of dimeric hydroxylamine-O-sulfonic acid: Experimental observations aided by ab initio, DFT, Car-Parrinello and Born – Oppenheimer on the fly dynamics

Autor: Joydeep Chowdhury, Bipan Dutta

Publikováno v: Chemical Physics Letters. 732:136645

This paper reports detail study on the Raman and temperature dependent IR spectra of hydroxylamine-O-sulfonic acid molecule. Complete vibrational analyses of the molecule have been reported based on ab initio calculations. Raman and IR spectra captur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fc725d96e6045b25bb1b7b3b33d4175
https://doi.org/10.1016/j.cplett.2019.136645

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Conformational Preferences of Ethyl Propionate Molecule: Raman, Temperature Dependent FTIR Spectroscopic Study Aided by ab Initio Quantum Chemical and Car–Parrinello Molecular Dynamics Simulation Studies

Autor: Bipan Dutta, Takeyuki Tanaka, Joydeep Chowdhury, Arup Banerjee

Publikováno v: The Journal of Physical Chemistry A. 117:4838-4850

The conformational preferences of the industrially significant ethyl propionate (EP) molecule have been investigated from the Raman and FTIR spectra, aided by ab initio and Car-Parrinello molecular dynamics (CPMD) simulation studies. The vibrational

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::858089e5e99a132637041d8ddbb9bf54
https://doi.org/10.1021/jp404247v

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