Dr. Madhulata Shukla
@gbcramgarh.in
Assistant Professor
Veer Kunwar Singh University
RESEARCH, TEACHING, or OTHER INTERESTS
Physical and Theoretical Chemistry, Spectroscopy, Chemistry, General Chemistry
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Rimpa Mondal, Aratrika Chakraborty, Ennio Zangrando, Madhulata Shukla, and Tanmay Chattopadhyay
Royal Society of Chemistry (RSC)
The synthesis of a magnetically separable nanocatalyst Fe3O4@ISNA@CuL1 used as a catalyst for oxidation of alcohols and reduction of nitrophenols.
Madhulata Shukla, Sumit Kumar, and Vikash Kumar
Elsevier
Sumit Kumar, Amrutlal Prajapat, Sumit K. Panja, and Madhulata Shukla
Wiley
Madhulata Shukla
CRC Press
Durga Gupta, Ravi Ranjan, and Madhulata Shukla
Elsevier BV
Madhulata Shukla and Sumit Kumar
CRC Press
Mayuri V. Patil, Pradeep M. Mhaldar, Madhulata Shukla, Abhay N. Srivastva, and Dattaprasad M. Pore
Informa UK Limited
Abstract We have synthesized a novel bronsted acidic surfactant, 3-methyl-1-sulfonic acid imidazolium dioctyl sulfosuccinate [MSIM]+ [DOSS]−. We explored catalytic activity of [MSIM]+ [DOSS]− for regioselective synthesis of novel class of thiazolotriazolones from the reaction of aldehydes/ketones, thiosemicarbazide and ethylbromo acetate in aqueous medium at room temperature. The regio-selectivity was confirmed by DFT and IR frequency calculations. The present methodology offers a feasible approach for swift access to collection of extremely pure products with wide substrate scope having several advantages such as excellent yields, short reaction time, easy work-up procedure for isolation of product and use of surfactant as eco-friendly catalyst, use of water as an universal solvent and novelty in synthesis of surfactant [MSIM]+ [DOSS]− as well as investigation of regioselective synthesis of novel class of thiazolotriazolones. Graphical Abstract
Madhulata Shukla, Shaili Pal, and Indrajit Sinha
Elsevier BV
Madhulata Shukla, Alkadevi Verma, Sunil Kumar, Shaili Pal, and Indrajit Sinha
Elsevier BV
Alkadevi Verma, Madhulata Shukla, Sunil Kumar, Shaili Pal, and Indrajit Sinha
Elsevier BV
Tania Chowdhury, Sourav Chatterjee, Priyabrata Banerjee, Dipankar Sukul, Madhulata Shukla, and Tanmay Chattopadhyay
Informa UK Limited
Abstract Our present study deals with the synthesis of a heterogeneous catalyst (CuL@Al2O3). Initially [CuL], having the formula [Cu(L)(H2O)](NO3) (HL = 2-[(3,5-dichloro-2-hydroxy-benzylidene)-amino]-2-hydroxymethyl-propane-1,3-diol, obtained from condensation between 3,5-dichloro-2-hydroxybenzaldehyde and 2-amino-2-(hydroxymethyl)propane-1,3-diol), has been synthesized, followed by immobilization of [CuL] on alumina to generate the catalyst. The catalyst has been characterized by SXRD, UV-vis, FT-IR and SEM. Ground-state structure of the homogeneous catalyst [CuL] was optimized by Density Functional Theory (DFT) and Time-Dependent DFT (TD-DFT) calculations. This catalyst exhibits appreciable catalytic activity towards oxidation of alcohols by using hydrogen peroxide as oxidant. Through ESI-MS study, it becomes possible to isolate intermediate species of the catalytic oxidation. Finally, a plausible mechanistic pathway has been proposed to elucidate the role of each substituent of the catalytic system. Prepared (CuL@Al2O3) offers a number of advantages such as easy work-up and separation of the catalyst from the reaction mixture by centrifugation, recyclability for six times with minimal loss of activity along with the high yield of product. Graphical Abstract
Jyoti Kuntail, Yash Manoj Jain, Madhulata Shukla, and Indrajit Sinha
Elsevier BV
Tonmoy Chakraborty, Aratrika Chakraborty, Madhulata Shukla, and Tanmay Chattopadhyay
Informa UK Limited
Abstract The present work focused on application of ZnO-NPs@bentonite, as a catalyst, for disposal of different pollutants such as dyes, phenol compounds and Cr(VI) ions from water. The prepared ZnO–bentonite nanocomposite was characterized by using FT-IR, X-ray powder diffraction, and Scanning electron microscopy analysis. The results showed that the amount of zinc oxide influenced the catalytic performance of ZnO–bentonite nanocomposite. Small amounts of zinc oxide on bentonite have a positive effect whereas increase in weight ratios has a negative effect.
Sourav Chatterjee, Ishani Majumder, Aratrika Chakraborty, Madhulata Shukla, and Tanmay Chattopadhyay
Elsevier BV
Madhulata Shukla and Indrajit Sinha
Wiley
AbstractPoly(N‐vinyl‐2‐pyrrolidone) (PVP) has been used extensively to stabilize the surface of noble metal nanoparticles against aggregation and also to produce anisotropic nanostructures. Naturally, it is very important to understand the effect of such surface stabilization by PVP on the catalytic activity of these nanoparticles. This communication investigates through DFT calculations the electronic properties of PVP stabilized 13‐atom Ag cluster for catalytic activation of nitrobenzene (NB). These computations suggest that poly(N‐vinyl‐2‐pyrrolidone) (PVP) interact with silver (Ag) cluster mainly through oxygen atom and acts not only as a stabilizer to prevent the aggregation of Ag clusters but also as an electron donor to activate the Ag clusters for further reaction. Natural Bonding Orbital (NBO) calculations show that catalytic activation of NB by PVP passivated Ag cluster occurs due to interaction of the oxygen of the nitro group with the Ag cluster. Weak back donation of electrons from M(dπ) orbital of Ag to antibonding σ* of one of the NO bond, facilitates the formation of the nitroso intermediate. To understand the extent and the nature of this interaction better, vibrational frequency calculation of nitrobenzene association with Ag13‐2PVP cluster is carried out. Red shift in the frequencies is consequence of strong interaction with that of silver cluster present in Ag13‐2PVP‐NB model.
Madhulata Shukla
Elsevier BV
Sasmita Mishra, Vijaylakshmi Tirkey, Avishek Ghosh, Hirak R. Dash, Surajit Das, Madhulata Shukla, Satyen Saha, Sheikh M. Mobin, and Saurav Chatterjee
Elsevier BV
Durga P. Singh, Seema Pratap, and Madhulata Shukla
Elsevier BV
Bhagwan Kharediya, Madhulata Shukla, Satyen Saha, and Sailaja Sunkari
Elsevier BV
Madhulata Shukla, Hemanth Noothalapati, Shinsuke Shigeto, and Satyen Saha
Elsevier BV
Sumanta K. Patel, Vijaylakshmi Tirkey, Sasmita Mishra, Hirak R. Dash, Surajit Das, Madhulata Shukla, Satyen Saha, Shaikh M. Mobin, and Saurav Chatterjee
Elsevier BV
Madhulata Shukla and Satyen Saha
Elsevier BV
Madhulata Shukla, Bhagwan Kharediya, Nitin Srivastava, Satyen Saha, and Sailaja Sunkari
Elsevier BV