Professor In-charge, Institute Cultural Programme, Abhinay, NIT Patna, 2014-2016
Departmental P.G. Coordinator, NIT Agartala, August 2011 - October 2014
Assistant Warden, NIT Agartala, Aryabhatta Hostel, August 2014 - October 2014
Member, Core Committee of T&P Cell, NIT Agartala, March 2013 - August 2014
Departmental Coordinator, TEQIP II Purchase Committee, NIT Agartala, January 2013 - October 2014
Member, Institute Guest House maintenance and regular monitoring, NIT Agartala, August 2014 - October 2014
Member, Guest House Purchase Committee, NIT Agartala, August 2014 - October 2014
Teaching Assistant, Department of Chemistry, NIT Agartala, August 2011 - April 2012
Assistant Professor, Department of Chemistry, NIT Agartala, May 2012 - October 2014
Assistant Professor, Department of Chemistry, NIT Patna, October 2014 - till date
S. Das et al., Self-assembly synthesis, structure, topology, and magnetic properties of a mononuclear Fe(III)-violurate derivative: A combined experimental and theoretical study,. Dalton Transactions, . - 2016,Accepted, DOI: 10.1039/C6DT03139K.
S. Roy, I. Oyarzabal, J. Vallejo, J. Cano, E. Colacio*, A. Bauza, A. Frontera*, A. Kirillov, M. Drew, S. Das*, Two Polymorphic Forms of a Six-Coordinate Mononuclear Cobalt(II) Complex with Easy-plane Anisotropy: Structural Features, Theoretical Calculations, and Field-Induced Slow Relaxation of the Magnetization. Inorg. Chem.. - 2016,Accepted.
R. Banik, S. Roy, A. M. Kirillov, A. Bauza, A. Frontera*, A. Rodríguez-Diéguez, J. M. Salas, W. Maniukiewicz*, S. K. Das, S. Das* , Two mixed-ligand cadmium(II) compounds bearing 5-nitrosopyrimidine and N-donor aromatic blocks: Self-assembly generation, structural and topological features, DFT studies, and Hirshfeld surface analysis. Cryst. Eng. Comm.. 18, - 2016, 5647-5657, DOI: 10.1039/C6CE00989A.
S. Roy, A. Bauza, A. Frontera*, F. Schaper, R. Banik, A. Purkayastha, B. M. Reddy, B. Sridhar, M.G.B. Drew, S.K. Das, S. Das*, Structural diversity and non-covalent interactions in Cd(II) and Zn(II) complexes derived from 3,5-dinitrobenzoic acid and pyridine: Experimental and theoretical aspects. Inorganica Chimica Acta. 440 - 2016,38-47, .
R. Banik, S. Roy, A. Bauza, A. Frontera*, A. Rodriguez-Dieguez, J.M. Salas, A.K. Kirillov, S. Chowdhury, B. M. Reddy, S. Balasubramanian, S. K. Das, S. Das*, Supramolecular interactions through lone pair(lp)- and hydrogen bonding in cobalt(III) and manganese(II) derivatives of N,N´-dimethylvioluric acid: A combined experimental and theoretical study. Inorganica Chimica Acta. 435 - 2015,178-186, .
R. Banik, S. Roy, A. Bauza, A. Frontera, S. Das*, Cadmium(II) complexes containing N,N´-dimethylviolurate as ligand or counteranion: Synthesis, characterization, crystal structures and DFT study . RSC Advances, . 5 - 2015,10826-10836, .
S. Roy, A. Bauza, A. Frontera, R. Banik, A. Purkayastha, M.G.B. Drew, B. M. Reddy, S. Balasubramanian, S. Das*, S. K. Das, Experimental observation and theoretical investigation on a novel Cd(II) complex with π-hole interaction involving nitro groups. Cryst. Eng. Comm, . 17 - 2015,3912, DOI: 10.1039/C5CE00453E.
S. Roy, R. Banik, S. Das*, A. J. Thakur, (E)-5,5’-(3-phenylprop-2-ene-1,1’-diyl)bis[6-amino-1,3-diemthylpyrimidine-2,4(1H,3H)-dione]: Synthesis, characterization, crystal structure and antimicrobial activity. J. Indian Chem. Soc.. 91 - 2014,2117-2125, .
S. Roy, A. Bauza, R. Banik, S. C. Biswas, A. Frontera, S. Das* , Structural basis for molecular recognition, theoretical studies and anti-bacterial properties of three bis-uracil derivatives. Tetrahedron. 70(39) - 2014,6931-6937, .
S. Das, S. J. Kalita, P. Bharali, B. K. Konwar, B. Das, A. J. Thakur , Nucleophilic addition of 6-aminouracil derivatives using ‘green surfactant’ isolated from P. aeruginosa OBP1 in water at room temperature. ACS-Sustainable Chemistry and Engineering. 1(12) - 2013,1530–1536., .
S. Roy and S. Das* , 5-(6-amino-1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxopyrimidin-5-yl)-1,3-dimethyl-1H-chromeno[2,3-d]pyrimidine-2,4(3H,5H)-dione, 3.5-hydrate. Acta Cryst.. E69 - 2013,O974–o975, .
S. Das*, A. J. Thakur, T. Medhi, B. Das , An efficient stereo-controlled synthesis of bis-pyrimido-[4, 5-d]-pyrimidine derivatives via aza-Diels-Alder methodology and their preliminary bioactivity. RSC Advances. 3 - 2013,3407, .
V. Das, S, Das, A. J. Thakur , Protection and Deprotection Chemistry Catalysed by Zirconium Oxychloride octahydrate (ZrOCl2.8H2O). Green Chem. Lett. & Rev. . 5 - 2012,577-586., .
B. K. Saikia, S. Das, B. Sridhar, A. J. Thakur , An X-ray crystallographic study of C-5 and C-6 substituted 1,3-dimethyl-6-amino uracil. J. Chem. Crystallogr.. 42 - 2012,711-720, .
S. Das, V. Das, L. Saikia, A. J. Thakur , Environment-friendly and solvent free synthesis of symmetrical bis-imines under microwave irradiation. Green Chem. Lett. & Rev.. 5 - 2012,457-474, .
P. Bharali, S. Das, B. K. Konwar, A. J. Thakur , Crude biosurfactant from thermophilic Alcaligenes faecalis: Feasibility in petro-spill bioremediation. Int. Biodeter. Biodegr.. 65 - 2011,682-690, .
S. Das, A. J. Thakur , A Clean, Highly Efficient and One-pot Green Synthesis of Aryl/Alkyl/Heteroaryl Bis(6-amino-1,3-dimethyluracil-5-yl)methanes in Water. Eur. J. Org. Chem.. - 2011,2301-2308, .
S. Das, A. J. Thakur , A green development of Bernthsen 9-substituted Acridine synthesis in the absence of solvent catalysed by p-Toluenesulphonic Acid (p -TSA). Green Chem. Lett. & Rev. . 4 - 2011,131-135, .
L. Saikia, S. Das, A. J. Thakur , Deprotection Chemistry Mediated by ZrOCl2.8H2O: An Efficient and Mild Green Method for the Conversion of Oximes to Carbonyl Compounds in Aqueous Acetone. Synth. Commun. . 41 - 2011,1071-1075, .
S. Das , N, N-Dimethyl Urea-Spotlight. Synlett,. 7 - 2010,1138-1139, .
A. J. Thakur, S. Das, A. K. Phukan , Replay of Amide Resonance in 6-[(Dimethylamino)methylene]1,3-dimethyl aminouracil: A Dynamic NMR and Density Functional Theory Study. J. Mol. Struc. . 929 - 2009,134-140, .
S. Das, B. K. Saikia, B. Das, L. Saikia, A. J. Thakur , 6,6’-Diamino-1,1’,3,3’-tetramethyl-5,5’-(4-chlorobenzylidene)bis[pyrimidine-2,4-(1H,3H)-dione]. Acta Cryst.. 65E - 2009,O2416-o2417, .
S. Das, R. Borah, R. R. Devi, A. J. Thakur , Molecular Iodine in Protection and Deprotection Chemistry. Synlett. 18 - 2008,2741-2762, .
S. Das, B. K. Saikia, B. Sridhar, A. J. Thakur , 6-[(Dimethylamino)methyleneamino]-1,3-dimethyl-pyrimidine-2,4(1H,3H)-dione dehydrate . Acta Cryst.. 64E - 2008,P01662, .
S. Das, Structural basis for molecular recognition of N,N ́-dimethyl violuric acid and its metal derivatives, Pure and Applied Chemistry International Conference 2017 - PACCON 2017. Bangkok, Thailand,2-3 February - 2017, .
R. Banik, S. Roy, S. Das* A. Frontera , N,N-Dimethylvioluric acid monohydrate: Synthesis, crystal structure, spectral, thermal analysis and DFT study, 102nd Indian Science Congress, . University of Mumbai,3-7 Jan - 2015, Proceeding Praper.
S. Roy, R. Banik, S. C. Biswas, S. Das*, Crystal structure and molecular recognition of three novel bio-active compounds, 101st Indian Science Congress. University of Jammu,3-7 Feb - 2014, Proceeding Praper.
R. Banik, S. Dev, T. K. Mishra, A. J. Thakur, S. Das*, 6,6-Diamino-1,1,3,3-tetramethyl-5,5-(cinnamylidene)bis-[pyrimidine-2,4(1H,3H)-dione: Trans isomer the stable one, 100th Indian Science Congress. University of Calcutta,3-7 Jan - 2013, Proceeding Praper.
S. Das*, S. J. Kalita and A. J. Thakur, A Green Development for the Synthesis of Aryl/Alkyl/Heteroaryl Bis(6-amino-1,3-dimethyluracil-5-yl)methanes in Water, 99th Indian Science Congress . KIIT University,3-7 Feb - 2012, Proceeding Praper.
S. Das*, N. Debnath and A. J. Thakur,, Synthesis of Aryl/Alkyl/Heteroaryl Bis(6-amino-1,3-dimethyluracil-5-yl)methanes in Water, 15th National Conference on Surfactant, Emulsions and Bio-colloids 2011 (NATCOSEB XV). Tripura University,27-29 Dec - 2011, Oral Presentation.
S. Das and A. J. Thakur,, A benign approach for the synthesis of Bis-imines, 3rd RSC-11th National Symposium in Chemistry(NSC-11). National Chemical Laboratory, Pune,5-8th Feb - 2009, Poster Presentation.
S. Das and A. J. Thakur, Synthesis of 9-substituted acridines under microwave irradiation, 2nd RSC-10th National Symposium in Chemistry (NSC-10). Indian Institute of Science (IISc), Bangalore,31Jan -3 Feb - 2008, Poster Presentation.
S. Das and A. J. Thakur, Experimental Determination of rotational barrier in 6-[(Dimethylamino) -methylene]-1, 3-dimethylaminouracil by dynamic NMR spectroscopy, 1st RSC-10th National Symposium in Chemistry (NSC-9). Delhi University, Delhi,2-4th Feb - 2007, Poster Presentation.
S. Das, A. Sarkar and Abhimunya, “Method and system for reducing pollutants in exhaust emissions of internal combustion engine”, Patent App No. 1455/MUM/2014. Published. Publication No: 18/2016
Metal complexes of Nitrosopyrimidine: Preparation, characterization....biological Activity; Institute SEED Project, 2016
Nitroso-Diels-Alder (NDA) reaction for the synthesis of some Heterocyclic compounds, DST, New Delhi, 13 Lakhs, 2014, Ongoing
Design of efficient method for the synthesis of RNA nucelobases. DBT, New Delhi, 59.62 Lakhs, 2012. Ongoing.
Nucleophilic addition reaction of uracil ring for synthesis of Bio-active molecules. AICTE, New Delhi, 16 Lakhs, 2012. Completed.