• Allosteric Transition Induced by Mg2+ Ion in a Transactivator Monitored by SERS 

  Kundu, Partha P.; Bhowmick, Tuhin; Swapna, Ganduri; Kumar, G. V. Pavan; Nagaraja, V.; Narayana, Chandrabhas (American Chemical Society, 2014)

  We demonstrate the utility of the surface-enhanced Raman spectroscopy (SERS) to monitor conformational transitions in protein upon ligand binding. The changes in protein's secondary and tertiary structures were monitored ...
• Porous polyimides from polycyclic aromatic linkers: Selective CO2 capture and hydrogen storage 

  Rao, K. Venkata; Haldar, Ritesh; Maji, Tapas Kumar; George, Subi Jacob (Elsevier Sci Ltd, 2014)

  Porous polyimides are important class of macromolecules owing to their excellent redox behaviour, efficient capture of CO2 and H-2 gases, interesting photocatalytic properties and superior thermal and chemical stabilities. ...
• Supramolecular Gating of Ion Transport in Nanochannels 

  Kumar, B. V. V. S. Pavan; Rao, K. Venkata; Sampath, S.; George, Subi Jacob; Eswaramoorthy, Muthusamy (Wiley-V C H Verlag Gmbh, 2014)

  Several covalent strategies towards surface charge-reversal in nanochannels have been reported with the purpose of manipulating ion transport. However, covalent routes lack dynamism, modularity and post-synthetic flexibility, ...
• Amine-Responsive Adaptable Nanospaces: Fluorescent Porous Coordination Polymer for Molecular Recognition 

  Haldar, Ritesh; Matsuda, Ryotaro; Kitagawa, Susumu; George, Subi Jacob; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2014)

  Flexible and dynamic porous coordination polymers (PCPs) with well-defined nanospaces composed of chromophoric organic linkers provide a scaffold for encapsulation of versatile guest molecules through noncovalent interactions. ...
• Charge-Transfer Nanostructures through Noncovalent Amphiphilic Self-Assembly: Extended Cofacial Donor-Acceptor Arrays 

  Rao, K. Venkata; Jalani, Krishnendu; Jayaramulu, K.; Mogera, Umesha; Maji, Tapas Kumar; George, Subi Jacob (Wiley-V C H Verlag Gmbh, 2014)
• Cu Doping in Ligand Free CdS Nanocrystals: Conductivity and Electronic Structure Study 

  Grandhi, G. Krishnamurthy; Swathi, K.; Narayan, K. S.; Viswanatha, Ranjani (American Chemical Society, 2014)

  Ligand-free Cu-doped CdS nanocrystals (NCs) have been synthesized to elucidate their surface electronic structure. The Cu-doped ligand-free NCs unlike their undoped counterparts are shown to be luminescent. We used this ...
• Ultrafast response humidity sensor using supramolecular nanofibre and its application in monitoring breath humidity and flow 

  Mogera, Umesha; Sagade, Abhay A.; George, Subi Jacob; Kulkarni, G. U. (Nature Publishing Group, 2014)

  Measuring humidity in dynamic situations calls for highly sensitive fast response sensors. Here we report, a humidity sensor fabricated using solution processed supramolecular nanofibres as active resistive sensing material. ...
• Conformational change in a urea catalyst induced by sodium cation and its effect on enantioselectivity of a Friedel-Crafts reaction 

  Chittoory, Arjun K.; Kumari, Gayatri; Mohapatra, Sudip; Kundu, Partha P.; Maji, Tapas K.; Narayana, Chandrabhas; Rajaram, Sridhar (Pergamon-Elsevier Science Ltd, 2014)

  While developing bis-camphorsulfonyl urea as a hydrogen-bonding catalysts, we discovered that the native conformation of the catalyst is unsuitable for inducing enantioselectivity. By complexing the catalyst with weakly ...
• Porous coordination polymers based on functionalized Schiff base linkers: enhanced CO2 uptake by pore surface modification 

  Bhattacharya, Biswajit; Haldar, Ritesh; Dey, Rajdip; Maji, Tapas Kumar; Ghoshal, Debajyoti (Royal Society of Chemistry, 2014)

  We report the synthesis, structural characterization and adsorption properties of three new porous coordination polymers {[Cu(Meazpy)(0.5)(glut)](H2O)}(n) (2), {[Zn(azpy)(0.5)(terep)](H2O)}(n) (3), and {[Zn(Meazpy)(0.5)( ...
• Oligo(p-phenyleneethynylene)-Derived Porous Luminescent Nanoscale Coordination Polymer of Gd-III: Bimodal Imaging and Nitroaromatic Sensing 

  Suresh, Venkata M.; Chatterjee, Snehajyoti; Modak, Rahul; Tiwari, Vivek; Patel, Anant B.; Kundu, Tapas Kumar; Maji, Tapas Kumar (American Chemical Society, 2014)

  Self-assembled highly luminescent nanoscale coordination polymer of {[Gd(OPE)(NO3)(H2O)2]center dot H2O} (NCP-1), (oligo-(p-phenyleneethynylene)dicarboxylate) was synthesized by coordination-driven self-assembly of ...
• A hexanuclear Cu(I) cluster supported by cuprophilic interaction: effects of aromatics on luminescence properties 

  Chakraborty, Anindita; Ramachandran, Krishna Kumar; Yamijala, Sharma S. R. K. C.; Pati, Swapan Kumar; Maji, Tapas Kumar (Royal Society of Chemistry, 2014)

  A hexanuclear Cu(I) cluster {Cu-3(L)(2)}(2) (1) based on a novel tripodal linker (L) has been synthesized. 1 shows intense emission (lambda(max) 560 nm) with lifetime <tau > = 224 ms and quantum yield = 27.6%. The emission ...
• Amide Functionalized Microporous Organic Polymer (Am-MOP) for Selective CO2 Sorption and Catalysis 

  Suresh, Venkata M.; Bonakala, Satyanarayana; Atreya, Hanudatta S.; Balasubramanian, Sundaram; Maji, Tapas Kumar (American Chemical Society, 2014)

  We report the design and synthesis of an amide functionalized microporous organic polymer (Am-MOP) prepared from trimesic acid and p-phenylenediamine using thionyl chloride as a reagent. Polar amide (CONH) functional groups ...
• Mg-MOF-74@SBA-15 hybrids: Synthesis, characterization, and adsorption properties 

  Chakraborty, Anindita; Maji, Tapas Kumar (American Institute of Physics, 2014)

  Nanocrystals of Mg-MOF-74 have been immobilized into the mesopores of SBA-15 rods to fabricate Mg-MOF-74@SBA-15 hybrid materials. To furnish such composites, a relatively simple synthetic strategy has been adopted by direct ...
• In-situ Stabilization of Tin Nanoparticles in Porous Carbon Matrix derived from Metal Organic Framework: High Capacity and High Rate Capability Anodes for Lithium-ion Batteries 

  Shiva, Konda; Jayaramulu, Kolleboyina; Rajendra, H. B.; Maji, Tapas Kumar; Bhattacharyya, Aninda J. (Wiley-V C H Verlag Gmbh, 2014)

  It is a formidable challenge to arrange tin nanoparticles in a porous matrix for the achievement of high specific capacity and current rate capability anode for lithium-ion batteries. This article discusses a simple and ...
• Interpenetrated Metal-Organic Frameworks with [Ag(CN)(2)](-) Bridging Ligand: Synthesis, Structural Characterization and Magnetic Study 

  Chakraborty, Anindita; Maji, Tapas Kumar (National Academy of Sciences India, 2014)

  This report articulates synthesis and single-crystal structural characterization of two twofold interpenetrated three dimensional metal-organic frameworks [Co-II(bipy)(2){Ag(CN)(2)}(2)](n) (1) and [Co-II(bpee)(2){Ag(CN)(2)}(2)](n) ...
• Flexible and Rigid Amine-Functionalized Microporous Frameworks Based on Different Secondary Building Units: Supramolecular Isomerism, Selective CO2 Capture, and Catalysis 

  Haldar, Ritesh; Reddy, Sandeep K.; Suresh, Venkata M.; Mohapatra, Sudip; Balasubramanian, Sundaram; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2014)

  We report the synthesis, structural characterization, and porous properties of two isomeric supramolecular complexes of ([Cd(NH(2)bdc)(bphz)(0.5)]DMFH2O}(n) (NH(2)bdc=2-aminobenzenedicarboxylic acid, bphz=1,2-bis(4-pyrid ...
• Lanthanide-organic frameworks for gas storage and as magneto-luminescent materials 

  Roy, Syamantak; Chakraborty, Anindita; Maji, Tapas Kumar (Elsevier Science Sa, 2014)

  Smart and careful design strategies need to be adopted for the synthesis of lanthanide organic framework materials to strike a balance between the high coordination requirement of lanthanide metal ions and the formation ...
• Synthesis, Characterization, and Modeling of a Functional Conjugated Microporous Polymer: CO2 Storage and Light Harvesting 

  Suresh, Venkata M.; Bonakala, Satyanarayana; Roy, Syamantak; Balasubramanian, Sundaram; Maji, Tapas Kumar (American Chemical Society, 2014)

  A Rationalization of structure and properties of amorphous porous solids at the microscopic level is essential in developing advanced materials. We delineate the structural modeling of a designed tetraphenylethene-based ...
• Structural and Magnetic Diversity Based on Different Imidazolate Linkers in Cu(II)-Azido Coordination Compounds 

  Chakraborty, Anindita; Lingampalli, Srinivasa Rao; Kumari, Aman; Ribas, Joan; Ribas-Arino, Jordi; Maji, Tapas Kumar (American Chemical Society, 2014)

  This Article reports the syntheses, structural characterization, and magnetic studies of four different Cu(II)-azido compounds based on imidazole or substituted imidazole ligand. The compounds, [Cu-2(mu(1,1)-N-3)(2)(Etim ...
• Synthesis and Structural Characterization of 1D and 2D Coordination Polymers based on Flexible 1,3-Adamantanediacetic Acid and Exo-bidentate Organic Linkers 

  Haldar, Ritesh; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2014)

  Five mixed-linkers based coordination polymers, namely {M(1, 3-Hadc)(bpy)(H2O)(2)}(n) [M = Ni-II (1), Co-II (2)], {Zn(1, 3-adc)(bpy)(0.5)}(n) (3), {Cd(1, 3-Hadc)(2)(bpy)}(n) (4), and {Cu(1, 3-Hadc)(2)(bpp)}(n) (5) [1, ...

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