Gautam_kumar_kohle.jpg

Dr Goutam Kumar Kole

MSc, PhD

Research Assistant Professor

Dr Kole received B.Sc (Honours) in Chemistry from University of Calcutta (2005), M.Sc in Chemistry from Indian Institute of Technology Madras, Chennai (2007) and Ph.D in Chemistry from National University of Singapore (2012) under supervision of Prof.Jagadese J Vittal. His doctoral thesis title was “Crystal Engineering Studies on the Molecular Salts and Silver(I) Coordination Compounds for [2 + 2] Cycloaddition Reaction in the Solid State”.He continued research at Prof.Vittal’s lab as Postdoctoral Research Associate for more than a year and then joined Institute for Materials Research and Engineering in Singapore as a Scientist. He then moved to Bhabha Atomic Research Centre in Mumbai and worked there as a Scientist before joining SRM University as Research Assistant Professor in Dec, 2016. His research articles have been published in various reputed, high impact journals including AngewandteChemie, Chemical Communications, Organic Letters, Chemistry – A European Journal, Chemical Society Reviews etcand his current h-index is 12.

Research Interests

Coordination Polymers, Metal Organic Frameworks (MOFs), Co-crystals and Organic Salts,[2 + 2] Cycloaddition Reaction of C=C and C=N bonds in the Solid State,Solid State Structural Transformation of Organic and Inorganic Materials,Chemistry of Chalcogens (Se &Te), Molecular Complexes as Single Source Precursor for Materials, Structure Property Correlation etc.
 

Selected Recent Publications

  • G. K. Kole, A. Chanthapally, G. K. Tan and J. J. Vittal, “Solid State Packing and Photoreactivity of Alkali Metal Salts of trans,trans-Muconate” Cryst. Growth Des., 2015, 15, 5555-5559.
  • G. K. Kole, T. Kojima, M. Kawano and J. J. Vittal, “Reversible [2+2] Single-Crystal-to-Single-Crystal Photochemical Formation and Thermal Cleavage of a Cyclobutane Ring” Angew. Chem. Int. Ed., 2014, 53, 2143-2146.
  • G. K. Kole, R. Medishetty, L. L. Koh and J. J. Vittal, “Influence of C-H···π interaction on the solid–state [2+2] cycloaddition reaction of a Ag(I) coordination complex in an inorganic co-crystal” Chem. Commun., 2013, 49, 6298-6300.
  • G. K. Kole and J. J. Vittal, “Solid state reactivity and structural transformations involving coordination polymers” Chem. Soc. Rev., 2013, 42, 1755-1775. DOI: 10.1039/C2CS35234F (a part of the centenary issue to celebrate the Nobel Prize in Chemistry awarded to Alfred Werner).

Awards and Recognitions

  • Selected among top-10 reviewers for CrystEngComm (RSC) in 2016.
  • K S Krishnan Research Associate, Bhabha Atomic Research Centre, Govt. of India.
  • “The Rising Star” award in ‘The 10th Conference of the Asian Crystallographic Association (AsCA2010)’ October 2010, Busan, South Korea.
  • ‘Kiang Ai Kim Scholar Award’ for 2010-2011 from the Department of Chemistry, NUS, Singapore.
  • Best Poster award in ‘1st China-India-Singapore Symposium on Crystal Engineering’ August 2010, NUS, Singapore.
  • NUS Research Scholarship, August 2007 – August 2011. Department of Chemistry, NUS, Singapore.
  • ‘Merit-cum-means’ (MCM) Scholarship, 2006 – 2007. Awardedduring M.Sc studies at IIT Madras.
  • ‘Foundation For Excellence’ (FFE) Scholarship (USA based) during B.Sc (Honours) studies at University of Calcutta.
  • Qualified National Eligibility Test (NET) and Graduate Aptitude Test in Engineering (GATE) for Lectureship as well as Junior Research Fellowship (CSIR-JRF), Government of India.
  • Qualified joint admission test to MSc (JAM) organised by IITs.

 

A) Crystal Engineering Studies on C=C, C=N and N=N bonds for Solid State Photoreactivity and Structural Transformation

The main objective of crystal engineering is to align the organic or inorganic molecules in preferred orientation in the solids by exploiting weak intermolecular interactions so that the desired physical and chemical properties can be achieved. Since last two decades, the functional olefins containing C=C bonds have been extensively studied to anchor their solid state photoreactivity in co-crystals, organic salts and metal-organic compounds. However, the olefins containing C=N bonds have not been extensively studied so far because of the unstability of C2N2 ring which decomposes to release N2 gas (see Scheme below). This problem can be solved by aligning the olefins in head-to-tail manner where the C and N atoms reside diagonally opposite to each other and thereby stabilising the resulting C2N2 ring. Therefore, in our research, the functional olefins and the templates would be designed in such a way that the C=N bonds of two olefins in their preorganised assemblies stack in head-to-tail manner which can yield a stable C2N2 ring. In addition, studies on reversible formation and thermal cleavage of cyclobutane rings, which is one current interest of the crystal engineering community, would also be explored. 

In the case of olefins containing N=N bonds, instead of solid state photoreactivity, stimuli controlled structural transformations and associated physical properties of coordination polymers would be studied. For example, trans-cis isomerization of N=N bonds under exposure to UV light can lead to enhanced adsorption properties in porous coordination polymers and also their varied emission characteristic can be very interesting.

B) Coordination Polymers and Metal Organic Frameworks

Metal organic frameworks aka MOFs constitute an important class of materials developed in the last decade. MOFs (also Porous Coordination Polymers, PCPs) possess three dimensional framework structures with large voids, which in turn can be exploited for various applications including gas adsorption, separation, catalysis, drug delivery, chemical sensing etc. Developing a MOF based material includes two steps – designed synthesis and structural characterization of the MOF and secondly, exploiting its void space for a specific application. Metal ions are limited; organic ligands are infinite. By judiciously tuning the combination of organic ligands (generally with carboxylate functionality) and metal ions, numerous numbers of new MOFs can be developed which can be employed for the studies on capture of greenhouse gases (e.g. CO2) and industrial flue gases.

MOFs (and also coordination polymers having no porosity) derived from lanthanide metal ions are comparatively less explored; however, they can be promising luminescent materials. Therefore, apart from studying the capture of pollutant gases, emission properties of the lanthanide-based coordination polymers will also be explored. Solid state structural transformation of the synthesized CPs under external stimuli (e.g. heat, light etc), if any, will also be addressed when required.  Basically in this area, new MOFs (or CPs) will be synthesized, structurally characterized and will be explored for materials application.

 

C) Organo-chalcogen (S, Se, Te) Compounds and their Complexes

Synthesis of chalcogen (S, Se, Te) containing organic ligands have multi facet utility. The chalcogenolate complexes of the soft metal ions are important for various reasons ranging from materials synthesis to structural diversity. While gold(I) predominantly exhibit two-coordinated linear complexes, Pd(II) and Pt(II) possess four-coordinated square planar coordination. On the other hand, Cu(I) and Ag(I) complexes exhibit diverse structural features resulting from their varied coordination number ranging from 2 to 6. Therefore, synthesis and structural characterization of chalcogenolate complexes of group 10 and 11 metal ions have drawn consideration interest in the last decades. The complexes of organo-sulfur ligands have been mostly explored. The metal complexes of organo-selenium and tellurium ligands are of current interest. The chemistry of tellurium analogues is most interesting and challenging as tellurium possesses significantly metallic character in the series. In this area, new organo-chalcogen (Se, Te) compounds with pyridyl, pyrimidyl and pyrazinyletc functionalities will be designed and synthesized. Molecular complexes of the synthesized organo-chalcogen ligands with soft metal ions would be synthesized and structurally characterized; and their utility as molecular precursors for synthesis of various nano-materials would be explored.


 


Main PI

  • Dr. Goutam Kumar Kole

Group Members
Will be updated later


  • G. K. Kole, A. P. Wadawale, S. Nigam, C. Majumder and V. K. Jain, “Intermolecular Aurophilic versus Intramolecular Au···N Secondary Interactions in Two-Coordinate Gold(I) Selenolate Complexes” ChemistrySelect, 2016, 1, 4131-4136, DOI: 10.1002/slct.201601122
  •  G. K. Kole,A. Chanthapally, G. K. Tan and J. J. Vittal, “Solid State Packing and Photoreactivity of Alkali Metal Salts of trans,trans-Muconate” Cryst. Growth Des.,2015, 15, 5555-5559. DOI: 10.1021/acs.cgd.5b01213(Impact factor 4.42).
  • G. K. Kole, T. Kojima, M. Kawano and J. J. Vittal, “Reversible [2+2] Single-Crystal-to-Single-Crystal Photochemical Formation and Thermal Cleavage of a Cyclobutane Ring” Angew. Chem. Int. Ed., 2014, 53, 2143-2146. DOI: 10.1002/anie.201306746 (Impact factor 11.71).
  • G. K. Kole, K. V. Vivekananda, M. Kumar, R. Ganguly, S. Dey and V. K. Jain, “Hemilabile silver(I) complexes containing pyridyl chalcogenolate (S, Se) ligands and their utility as molecular precursors for silver chalcogenides” CrystEngComm, 2015, 17,4367-4376. DOI: 10.1039/c5ce00626k (Impact factor 3.83).
  • G. K. Kole, K. V. Vivekananda, M. Kumar, S. Dey and V. K. Jain, ‘Silver(I) coordination polymer of 4,4'-dipyridyl selenide and its Solvothermolysis” Int. J. Chem.,2014, 3, 263-268.
  • G. K. Kole, R. Medishetty, L. L. Kohand J. J. Vittal, “Influence of C-H···π interaction on the solid–state [2+2] cycloaddition reaction of a Ag(I) coordination complex in an inorganic co-crystal” Chem. Commun., 2013, 49, 6298-6300. DOI:10.1039/C3CC42793E (Impact factor 6.83).
  • G. K. Kole, A. M. P.Peedikakkal, B. M. F. Tohand J. J. Vittal, “Solid-State Structural Transformations and Photoreactivity of 1D-Ladder Coordination Polymers of PbIIChem. Eur. J., 2013, 19, 3962-3968. DOI: 10.1002/chem.201203678 (Impact factor 5.77).
  • A. Chanthapally, G. K. Kole, K. Qian, G. K. Tan, S. Gao and J. J. Vittal, “Thermal cleavage of cyclobutane rings in the photodimerized coordination polymeric sheets” Chem. Eur. J., 2012, 18, 7869-7877. DOI: 10.1002/chem.201103791 (Impact factor 5.77).
  • G. K. Kole,and J. J. Vittal, “Solid state reactivity and structural transformations involving coordination polymers”Chem. Soc. Rev., 2013, 42, 1755-1775. DOI: 10.1039/C2CS35234F (Impact factor 34.09; a part of the centenary issue to celebrate the Nobel Prize in Chemistry awarded to Alfred Werner).
  • G. K. Kole, C. K. Chin, G. K. Tan and J. J. Vittal, “Silver(I) macrocycles and coordination polymers containing pyridyl carboxylate and phosphine ligands” Polyhedron, 2013, 52, 1140-1448. DOI:10.1016/j.poly.2012.04.003 (Impact factor 2.11; a part of the Werner 2013 Special Issue).
  • G. K. Kole,G. K. Tan and J. J. Vittal, “Solid state photodimerization of trans-2-(4-pyridyl)-4-vinylbenzoic acid via salt formation and isomerisation of cyclobutane compounds in solution” CrystEngComm, 2012, 14, 7438-7443. DOI: 10.1039/c2ce26086g (Impact factor 3.83).
  • G. K. Kole,G. K. Tan, L. L. Koh and J. J. Vittal, “Co-crystals of tetrakis-1,2,3,4-(4'-carboxyphenyl)cyclobutane with dipyridyl spacers: design and serendipity” CrystEngComm, 2012, 14, 6190-6195. DOI: 10.1039/c2ce25513h (Impact factor 3.83).
  • G. K. Kole, G. K. Tan and J. J. Vittal, “Photoreactivity of Ag(I) Complexes and Coordination Polymers of Pyridyl Acryclic Acids” Cryst. Growth Des.,2012, 12, 326-332.DOI: 10.1021/cg201119c (Impact factor 4.42).
  • M. H. Mir, J. X. Ong, G. K. Kole, G. K. Tan, M. J. McGlinchey, Y. Wu and J. J. Vittal “Photoreactive gold(I) macrocycles with diphosphine and trans, trans-muconate ligands” Chem. Commun., 2011, 47, 11633-11635.DOI: 10.1039/c1cc14442a (Impact factor 6.83).
  • R. Medishetty, L. L. Koh, G. K. Kole and J. J. Vittal, “Solid state structural transformation from 2D-interdigitated layer to 3D-interpenetrated structure” Angew. Chem. Int. Ed., 2011, 50, 10949-10952.DOI: 10.1002/anie.201104106 (Impact factor 11.71).
  • G. K. Kole,G. K. Tan and J. J. Vittal, “Role of anions in the synthesis of cyclobutane derivatives via [2 + 2] cycloaddition reaction in the solid state and their isomerization in solution” J. Org. Chem., 2011, 76, 7860-7865.DOI: 10.1021/jo201268p (Impact factor 4.72).
  • G. K. Kole,G. K. Tan and J. J. Vittal, “Crystal engineering studies on the salts of trans-4,4'-stilbenedicarboxylic acid in the context of solid state [2+2] cycloaddition reaction”CrystEngComm, 2011, 13, 3138-3145.DOI: 10.1039/c0ce00224k (Impact factor 3.83).
  • G. K. Kole, A. J. Cairns, M. Eddaoudi and J. J. Vittal, “Solvent-free porous framework resulted from 3D entanglement of 1D zigzag coordination polymer” New J. Chem., 2010, 34, 2392-2395.DOI: 10.1039/c0nj00217h (Impact factor 3.09; a part of the themed issue on coordination polymer: structure and function).
  • G. K. Kole, L. L. Koh, S. Y. Lee, S. S. Lee and J. J. Vittal, “A new ligand for metal–organic framework and co-crystal synthesis: mechanochemical route to rctt-1,2,3,4-tetrakis-(4'-carboxyphenyl)-cyclobutane” Chem. Commun., 2010, 46, 3660-3662. DOI: 10.1039/c0cc00012d (Impact factor 6.83).
  • G. K. Kole,G. K. Tan and J. J. Vittal, “Anion-controlled stereoselective synthesis of cyclobutane derivatives by solid state [2+2] cycloaddition reaction of the salts of trans-3-(4'-pyridyl) acrylic acid” Org. Lett., 2010, 12, 128-131. DOI: 10.1021/ol9025233 (Impact factor 6.36)

 

 

 

 


  • BTech: Engineering Chemistry (15CY101)
  • BTech: Principles of Environmental Science (15CY102)

Dr. Goutam Kumar Kole

Research Assistant Professor
Office 701B, 7th Floor, University Main Building
Department of Chemistry and Research Institute,
Kattankulathur Campus, SRM University
Chennai – 603203
Email: goutamkumar.s@ktr.srmuniv.ac.in;