Department of Chemistry

Recent publications in journals (National/International)

57. Excited state dynamics of 1,2,4-triazolyl-thio-pentane-2,4-dione system and their conversion to biologically active novel triazole-S-pyrazole hybrids. Jasneet  Rana, R. P. Chaudhary. Submitted to J. Mol. Struct. 1291 (2023) 136015.          (IF, 3.841)

56. Spectroscopic, X-ray, mechanistic and DFT studies on formation of novel benzoimidazole-4-ones from cyclohexenyl carbothioamides. Jasneet  Rana, R. P. Chaudhary. Chem. Phys., 571 (2023) 111935.                                 (IF, 2.552).

55.  TFE assisted mechanochemical synthesis of new pyrazolones from Meldrum acid carbothioamides-Experimental and Theoretical studies. Jasneet  Rana, Jyoti Yadav and  R. P. Chaudhary. Mol. Catal., 539 (2023) 113002.                     (IF, 5.089)

54. Experimental and theoretical studies on prototropic tautomerism of 1-tetralone-2-carbothioamides and synthesis of regioselectively designed fused 2H-indazole derivatives. Jyoti Yadav and R. P. Chaudhary. Journal of Molecular Structure, 1271, 2022, 133976. [I.F. 3.841]

53. A review on advances in synthetic methodolgy and biological profile of spirothiazolidin-4-ones. Jyoti Yadav and R. P. Chaudhary, Journal of Heterocyclic Chemistry, 59, 1839-1878, 2022. [IF 2.4]

52. Synthesis, prototropic Tautomerism studies of indenocarbothioamides and their conversion to biologically active indenothiazole derivatives. Jasneet  Rana, R. P. Chaudhary. Spectrochim. Acta  A: Mol.  Biomol. Spectrosc., 276 (2022) 121194.[IF 4.831]

51. Spectroscopic, X-ray and DFT studies of prototropic Tautomerism and photophysical properties of regioselectively designed new 3-,2,3-substituted tetrahydro[4H]indazol-4-ones. Jasneet  Rana, R. P. Chaudhary. J. Mol. Struct. 1243 (2021) 130762.  (IF, 3.841)

50. Ultrasound assisted regioselective synthesis, photophysical and structural studies of 1-substituted indazol-4(5H)-ones and enaminodikenones of dimedone. R. P. Chaudhary, Poonam Gautam, Deepika gautam, Isha  Mittal. Journal of Molecular Structure, 1228, 2021, 129710. [I.F. 3.8]

49. Ultrasound-assisted facile synthesis and antimicrobial studies of alkanediyl-bis-thiazolidin-4-ones and alkanediyl-bisi-thiazinz-4-ones. Amritpal Kaur, Avneet Pal Kaur, Poonam Gautam, Deepika Gautam and R. P. Chaudhary. Journal of Heterocyclic Chemistry, 56, 2105-2110, 2019 [I.F.2.4]

48. Experimental and theoretical investigations on acid catalysed stereoselective synthesis of new indazolyl-thiaole derivatives. Poonam Gautam, Deepika Gautam and R. P. Chaudhary. Journal of Molecular Structure, 1160, 333-341, 2018.

47.Spectral, DFT and X-ray diffraction studies on regioselective synthesis of thiazolo-quinazoline system Deepika Gautam, Poonam Gautam and R. P. Chaudhary* Journal of Molecular Structure 1145, 2017, 268-277.
[I. F. 3.8]
46. Efficient ‘on water’ green route heterocyclization of thiosemicarbazones with DMAD
Rohit Singla, Deepika Gautam, Poonam Gautam and R.P. Chaudhary*. Phosphorus, Sulphur and Silicon and the Related Elements. 191, 2016, 740-745. [Impact factor 1.3]

45.Synthesis, crystal structure, computational and photophysical studies of new hydrazono-thiazole derivatives decorated with N-methyl tetrahydrocarbazole pendant. Deepika Gautam and R. P. Chaudhary. Journal of Molecular Structure, 1080, 137-44, 2015. [I.F. 3.8]
44. Synthesis, X-ray, DFT and photophysical properties of some new ferrocenyl hydrazono thiazolidin-4-ones and their derivatives. Deepika Gautam and R.P. Chaudhary*. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 143 (2015) 256-264. [Impact Factor 4.4]

43. Synthesis, structure and antimicrobial evaluation of new 3,3a,4,5-tetrahydro-2H- benzo[g]indazol-2-yl]thiazol-4(5H)-ones Deepika Gautam and R.P. Chaudhary*. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 135 (2015) 219-26. [Impact Factor 4.4]
42. Photocatalytic degradation of methylene blue with Cu doped ZnS nanoparticles. Ruby Chauhan, Ashavani Kumar and Ram Pal Chaudhary. Journal of Luminescence 145(2014)6-12. [Impact Factor 3.6]
41. Carbodiimide mediated synthesis of some novel 4-thiazolidinones and 2,4-disubstituted thiazoles bearing N-methyl tetrahydrocarbazole moiety. Deepika Gautam, and Ram Pal Chaudhary. Indian J. Chem. 53B, 1606-10, 2014 [Impact Factor 0.68]

40. One pot regioselective synthesis and antimicrobial studies of some novel Indazolyl-thiazole derivatives. Poonam Gautam, Deepika Gautam and R. P. Chaudhary. J. Heterocycl. Chem. (in Press, 2014) [Impact Factor 2.4]
39. Facile synthesis of substituted dihydro-1 H-pyrazolo[3,4- d ]thiazoles through enaminones of 4-thiazolidinones. Poonam Gautam and R. P. Chaudhary. Heterocycl. Commun. 20(4) (2014) 233–237. [Impact Factor 2.3]
38. Regioselective synthesis of new 2,5,6-trisubstituted 5,6-dihydro-2H-pyrazolo[3,4-d]thiazoles from 5-dimethylaminoethylene-thaozolidin-4-thiones. Poonam Gautam, Deepika Gautam and R. P. Chaudhary. J. Sulfur Chem. (in Press, 2014). [Impact Factor 2.3]

37. Carbodiimide mediated synthesis of new thiazolidin-4-ones and thiazinan-4-ones from thiosemicarbazone derivatives of 6,7-dihydro-1H-indazole-4(5H )-ones. Poonam Gautam and Ram P. Chaudhary. J. Chem. Res. 38 (2014) 226–230. [Impact Factor 1.4]
36. Visible-light photocatalytic degradation of methylene blue with Fe doped CdS. Ruby Chauhan, Ashavani Kumar and Ram Pal Chaudhary. Applied Surface Science 270(2013)655-60. [Impact Factor 6.7]

35 Synthesis, crystal structure and DFT studies of N-(4-acetyl-5,5-dimethyl-4,5-dihydro-1,3,4-thiadiazol-2-yl)acetamide. Deepika Gautam, Poonam Gautam and R. P. Chaudhary. Crystallography Reports. 58 (2013) 1079-1083. [Impact Factor 0.7]

34. Studies on orientation of cyclization in thiazolo-quinazoline heterocyclic system through NMR, DFT and X-ray diffraction. Richa Gupta and R. P. Chaudhary. Journal of Heterocyclic Chemistry. (2013, in Press) [Impact factor 2.4]

33. Synthesis, spectroscopic characterization and DFT calculations of novel 5-phenylindeno[1,2-d]thiazolo[3,2-a]pyrimidine-3,6(2H,5H)-dione. Richa Gupta and Ram Pal Chaudhary. Journal of Sulfur Chemistry. 35 (2014) 86-97. [Impact factor 2.3]

32. Synthesis, antimicrobial and DFT studies of novel fused thiazolo-pyrimidine derivatives. Richa Gupta and Ram Pal Chaudhary. Hetrocyclic Commun. 19 (2013) 207-214. [Impact factor 0.727]

31. A green and efficient synthesis and antimicrobial studies of some thiazolidin-4-ones and 1, 3-thiazinan-4-ones. Deepika Gautam, Poonam Gautam and R.P. Chaudhary. Hetrocyclic Commun. 19 (2013) 43-47. [Impact factor 2.3]

30. X-ray, NMR and DFT studies on benzo[h]thiazolo[2,3-b]quinazoline derivatives. Richa Gupta, R.P. Chaudhary. Journal of Molecular Structure. 1049 (2013) 189-197. [Impact factor 3.8]

29. Photocatalytic degradation of methylene blue with Fe doped ZnS nanoparticles. Ruby Chauhan, Ashavani Kumar and Ram Pal Chaudhary. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 113 (2013) 150-56. [Impact factor 4.4]

28. Structural, optical and photocatalytic studies Fe doped ZnS nanoparticles. Ruby Chauhan, Ashavani Kumar and Ram Pal Chaudhary. Journal of Sol Gel Science and Technology. 67 (2013) 376-383. [Impact factor 2.5]

27. Expedient and green synthesis of some novel 4-thiazolidinones and new 2,4-disubstituted thiazoles with tetrahydro carbazole pendant. Deepika Gautam, Poonam Gautam and R.P. Chaudhary. Letters in Organic Chemistry. 9 (2012) 660-63. [Impact factor 0.667]

26. N-methylpyridinium tosylate catalysed green and efficient synthesis of some novel 2,4-disubstituted thiazoles and 4-thiazolidinones. Deepika Gautam, Poonam Gautam and R.P. Chaudhary. Chinese Chemical Letters. 23 (2012) 1221-24. [Impact Factor 9.1]

25. Efficient ionic liquid-catalyzed synthesis and antimicrobial studies of 4,6-diaryl- and 4,5-fused pyrimidine-2-thiones. Richa Gupta and Ram Pal Chaudhary. Journal of Chemical Research. 36 (2012) 718-721. [Impact factor 0.7]

24. N-methylpyridinium tosylate catalysed green synthesis, x-ray studies and antimicrobial activities of novel (E)-3-amino-2-(E)-(3, 4-dihydronaphthalen-1(2h)-ylidene)hydrazono)thiazolidin-4-ones. Richa Gupta and Ram Pal Chaudhary. Phosphorus, Sulphur, Silicon and the Related Elements. 2012. In Press. [Impact factor 1.3]

23. Photocatalytic studies of silver doped ZnO nanoparticles synthesized by chemical precipitation method. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Journal of Sol Gel Science and Technology. 63 (2012) 546-553. [Impact factor 2.5]

22. Structural and photocatalytic studies of Mn doped TiO2 nanoparticles. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 98 (2012) 256–264. [Impact factor 4.4]

21. Synthesis, structural and photo catalytic studies of Mn-doped CdS nanoparticles. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Res Chem Intermed. 39 (2013) 645-657. [Impact factor 3.3]

20. Structural and optical characterization of Ag-doped TiO2 nanoparticles prepared by a sol–gel method. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Res Chem Intermed. 38 (2012) 1443-1453. [Impact factor 3.3]

19. Structural and optical characterization of Zn doped TiO2 nanoparticles prepared by sol-gel method. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Journal of Sol Gel Science and Technology. 61, 3 (2012) 585-591. [Impact factor 2.5]

18. Ionic liquid mediated facile synthesis and antimicrobial study of thiazolo [2, 3-b]benzo[h]quinazolines and thiazino[2, 3-b]benzo[h]quinazolines. Richa Gupta and Ram Pal Chaudhary. Phosphorus, Sulphur and Silicon and the Related Elements. 187 (2012) 735–742. [Impact factor 1.3]

17. Characterization of chemically synthesized Mn doped ZnS nanoparticles. Ruby Chauhana, Ashavani Kumar, Ram Pal Chaudhary. Chalcogenide Letters. 9 (2012) 151 – 156. [Impact factor 0.934]

16. Structures and optical properties of Zn1-xNixO nanoparticles by coprecipitation method. Ruby Chauhan, Ashavani Kumar, Ram Pal Chaudhary. Res Chem Intermed. 38 (2012) 1483-1493. [Impact factor 3.3]

15. Efficient synthesis of 2,4-disubstituted thiazoles and 2-substituted 4-thiazolidinones under solvent free conditions. Deepika Gautam, Poonam Gautam and Ram Pal Chaudhary. Heterocyclic Communications. 17(3-4) (2011) 147-150. [Impact factor 2.3]

14. Structure and optical properties of Zn1-XNiXO nanoparticles by coprecipitation method. Ruby Chauhan, Ashavani Kumar and Ram Pal Chaudhary. Journal of Optoelectronics and Biomedical Materials. 3 (2011) 17-23. [Impact factor 0.46]

Research Papers Presented in National/International Conferences:
13. Regioselective synthesis, computational and antimicrobial studies of some novel tetrahydro-2H-benzo[g]indazoles and their derivatives. R. P. Chaudhary* and Poonam Gautam 101st Indian Science Congress held at Jammu University, Jammu from 03-07 Feb, 2014.

12. Reaction of 4-Phenyl-2-thioxo-1,2,3,4-tetrahydroindeno[1,2-d]primidin-5-one with bifunctional compounds and study of orientation of cyclization through 1H NMR spectroscopy. Richa Gupta and Ram Pal Chaudhary*. Presented at 100th Indian Science Congress held at Calcutta University from 03-07 Jan. 2013.

11. Dicyclohexylcarbodiimide mediated synthesis of 2,3-disubtituted 4-thiazolidinines by one pot three component condensation. Deepika Gautam and Ram Pal Chaudhary*. National Conference on Global Challenges: New Frontiers in Chemical Sciences held from Sept. 22-23, 2012 at Kurukshetra University, Kurukshetra.

10. Green and efficient synthesis of novel 2-amino-4-thiazolidinones and 2,4-disubstituted thiazoles containing carbazole moiety. Deepika Gautam* and Ram Pal Chaudhary. International Conference “Chemical Constellation Cheminar-2012” held at NIT Jalandhar from 10-12 September 2012.
9. Synthesis and Structural Analysis of Ag doped TiO2 Nanoparticles. Ruby Chauhan, Ashwani Kumar and Ram Pal Chaudhary, 2nd National Conference on Advanced Materials and Radiation Physics (AMRP-2011) held from Nov. 04-05, 2011 at SLIET, Longowal.

8. Solvent free, one-pot synthesis of some new 2-imino- 4-thiazolidinones and 1, 3-thiazinan-4-ones containing 3, 4-dihydronaphthalene-1(2H)-ylidene moiety using an ionic liquid. Deepika Gautam, Richa Gupta, Hemant Kumar and Ram Pal Chaudhary, 23rd International Congress of Heterocyclic Chemistry held from 31st July – 04th Aug. 2011 at Glasgow, Scotland, UK.

7. Study of orientation of cyclization in Thiazolo[2,3-b]benzo[h]quinazolines through PMR spectroscopy. Richa Gupta and Ram Pal Chaudhary International Conference on Global Challenges-The Role of Chemistry in Giving their Solutions held from 11-15 June, 2011 at Bangkok, Thailand.

6. Solvent free, one pot synthesis for 2, 3-disubstituted 4-thiazolidinones. Deepika Gautam, Poonam Gautam, Richa Gupta and Ram Pal Chaudhary, 3rd National Conference on Recent Advances in Chemical & Environmental Sciences held from Feb.28- March 01, 2011 at Multani Mal Modi College, Patiala.
5. Synthesis and antimicrobial studies of thiazolo[2,3-b]benzo[h]quinazolines and their 2-arylidene derivatives. Richa Gupta, Hemant Kumar and Ram Pal Chaudhary, 98th Indian Science Congress held from 03-07 Jan. 2011 at SRM University, Chennai
4. Excited state intramolecular proton transfer in a novel fluorescent system 6,7-bis-[2-hydroxy-2-benzylidene-amino]-phenalene-1,3-dione. Ram Pal, International Conference on Materials for the New Millennium, MATCON 2010 held from Jan 11-13, 2010 at Cochin Uni., Kochi (Kerala).
3. Synthesis and antimicrobial activities of bridgehead nitrogen heterocycles containing a 4-thiazolidinone nucleus and their 2-arylidene derivatives. Richa Gupta, Hemant Kumar and Ram Pal Chaudhary 2nd Annual National Conference on Recent Advances in Chemical & Environmental Sciences held from Jan 22-23, 2010 at Multani Mal Modi College, Patiala.
2. Photocatalytic degradation of phthalate esters (PAES) in water using TiO2/WO3 composite. Pooja single, Ram Pal Chaudhary and Hemant Kumar, International Conference on Environmental Challenges: A Global Concern held from Oct 15-16, 2010 at Kanya Maha Vidyalaya, Jalandhar
1. Synthesis and antimicrobial activities of thiazolo[2,3-b]benzo[f]quinazolin-1(2H)-ones and their 2-arylidene derivatives. Richa Gupta, Hemant Kumar and Ram Pal Chaudhary, 24th Annual Conference of Indian Council of Chemists held from Dec 19-21, 2010 at Panjab University, Chandigarh.