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Browsing Tapas Kumar Maji by Title

Now showing items 1-20 of 45

1D chains, 2D networks and 3D interdigitated frameworks of isoorotic acid or 4,4'-bipyridyl and isoorotic acid: syntheses, structures, and sorption properties

Haldar, Ritesh; Gurunatha, K. L.; Sikdar, Nivedita; Maji, Tapas Kumar (Chinese Chemical Society, 2015)

Five new coordination polymers, {[Cu(H(2)iso)(2)]center dot 2H(2)O}(n) (1), {Mn(Hiso)(H2O)(3)}(n) (2), {Mn(Hiso)(H2O)(2)}(n) (3), {[Cu(Hiso)(4,4'-bipy)(H2O)]center dot 2H(2)O}(n) (4) and {[Ni(Hiso)(4,4'-bipy)(H2O)}]center ...
A 2-D coordination polymer incorporating cobalt(II), 2-sulfoterephthalate and the flexible bridging ligand 1,3-di(4-pyridyl)propane

Datta, Amitabha; Das, Kuheli; Massera, Chiara; Clegg, Jack K.; Pfrunder, Michael C.; Garribba, Eugenio; Huang, Jui-Hsien; Sinha, Chittaranjan; Maji, Tapas Kumar; Akitsu, Takashiro; Orita, Shingo (Chinese Chemical Society, 2015)

The cobalt derivative {[Co-3(2-stp)(2)(dpp)(4)]center dot 2H(2)O}(n) (1) has been hydro(solvo)thermally synthesised by combining sodium 2-sulfoterephthalic acid (2-stpH(2)Na) and divalent cobalt nitrate in presence of the ...
2D coordination polymer composed of 1D {Ni-II(mu-O)(mu-H2O)Ni-II}(n) ferromagnetic chains: Modulation of magnetic properties based on dehydration and rehydration

Adalikwu, Stephen Adie; Chakraborty, Anindita; Hazra, Arpan; Ghosh, Dibyajyoti; Pati, Swapan Kumar; Maji, Tapas Kumar (Pergamon-Elsevier Science Ltd, 2016)

Synthesis, single-crystal structure and magnetic properties of a 2D coordination compound [Ni(1,3-ADA) (H2O)](n) (1) is reported which exhibits tunable magnetic behavior based on dehydration-rehydration. 1 shows ferromagnetic ...
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 ...
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. ...
A bimodal anionic MOF: turn-off sensing of Cu-II and specific sensitization of Eu-III

Bhattacharyya, Sohini; Chakraborty, Anindita; Jayaramulu, Kolleboyina; Hazra, Arpan; Maji, Tapas Kumar (Royal Society of Chemistry, 2014)

A novel porous anionic MOF {[Mg-3(ndc)(2.5)(HCO2)(2)(H2O)][NH2Me2]center dot 2H(2)O center dot DMF} (1) having exchangeable dimethyl amine cations in 1D channels has been synthesized and characterized. Through cation ...
Bimodal self-assembly of an amphiphilic gelator into a hydrogel-nanocatalyst and an organogel with different morphologies and photophysical properties

Sutar, Papri; Maji, Tapas Kumar (Royal Society of Chemistry, 2016)

We design a flexible, amphiphilic LMWG consisting of donor and acceptor pi-chromophores which self-assembles into a hydrogel and an organogel with different nano-morphologies. Different mechanisms of self-assembly evolve ...
Cd-113 Nuclear Magnetic Resonance as a Probe of Structural Dynamics in a Flexible Porous Framework Showing Selective O-2/N-2 and CO2/N-2 Adsorption

Haldar, Ritesh; Inukai, Munehiro; Horike, Satoshi; Uemura, Kazuhiro; Kitagawa, Susumu; Maji, Tapas Kumar (American Chemical Society, 2016)

Two new isomorphous three-dimensional porous coordination polymers, {[Cd(bpe)(0.5)(bdc)(H2O)]center dot EtOH}n (1) and {[Cd(bpe)(0.5)(bdc)(H2O)]center dot 2H(2)O}n (2) [bpe = 1,2-bis(4-pyridyl)ethane, and H2bdc = ...
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)
Coordination polymer gels: soft metal-organic supramolecular materials and versatile applications

Sutar, Papri; Maji, Tapas Kumar (Royal Society of Chemistry, 2016)

In recent times, significant attention has been paid to the development of functional coordination polymer gels (CPGs) from rationally designed low molecular weight gelators (LMWGs) and metal ions. Coordination of metal ...
Coordination-Driven Fluorescent J-Aggregates in a Perylenetetracarboxylate-Based MOF: Permanent Porosity and Proton Conductivity

Sikdar, Nivedita; Dutta, Dipak; Haldar, Ritesh; Ray, Turjya; Hazra, Arpan; Bhattacharyya, Aninda Jiban; Maji, Tapas Kumar (American Chemical Society, 2016)

Here we report the synthesis and structural characterizations of a new 3D functional metal-organic framework {[K-8(PTC)(2)(H2O)(1.5)]center dot 4H(2)O}(n) formed by the self-assembly of K-I and chromophoric linker ...
Crystal Dynamics in Multi-stimuli-Responsive Entangled Metal-Organic Frameworks

Kanoo, Prakash; Haldar, Ritesh; Reddy, Sandeep K.; Hazra, Arpan; Bonakala, Satyanarayana; Matsuda, Ryotaro; Kitagawa, Susumu; Balasubramanian, Sundaram; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2016)

An understanding of solid-state crystal dynamics or flexibility in metal-organic frameworks (MOFs) showing multiple structural changes is highly demanding for the design of materials with potential applications in sensing ...
A discrete Cu-6(II) cluster and a 3D Mn-II-Cu-II framework based on assembly of Mn2Cu4 clusters: synthesis, structure and magnetic properties

Chakraborty, Anindita; Escuer, Albert; Ribas, Joan; Maji, Tapas Kumar (Royal Society of Chemistry, 2016)

The synthesis, single-crystal structure characterization and detailed magnetic study of a homometallic hexanuclear Cu-II cluster [Cu-6(mu(3)-OH)(2)(ppk())6(H2O)2(NO3)(4)] (1) and a three-dimensional (3D) compound ...
Dynamic Entangled Porous Framework for Hydrocarbon (C2-C3) Storage, CO2 Capture, and Separation

Sikdar, Nivedita; Bonakala, Satyanarayana; Haldar, Ritesh; Balasubramanian, Sundaram; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2016)

Storage and separation of small (C1-C3) hydrocarbons are of great significance as these are alternative energy resources and also can be used as raw materials for many industrially important materials. Selective capture ...
Dynamic, conjugated microporous polymers: visible light harvesting via guest-responsive reversible swelling

Rao, K. Venkata; Haldar, Ritesh; Maji, Tapas Kumar; George, Subi Jacob (Royal Society of Chemistry, 2016)

The light-harvesting properties of two fluorescent dynamic conjugated microporous organic polymers (Py-PP and Py-BPP) rendered with pyrene chromophores are described. The hydrophobic and dynamic nature of these porous ...
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 ...
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 ...
High aspect ratio, processable coordination polymer gel nanotubes based on an AIE-active LMWG with tunable emission

Suresh, Venkata M.; De, Anangsha; Maji, Tapas Kumar (Royal Society of Chemistry, 2015)

A new TPE based low molecular weight gelator (LMWG) which displays both AIE and MCIE phenomena in gel state has been synthesized. LMWG self-assembles to form 1D nanofibers which undergo morphology transformation to ...
Host-Guest [2+2] Cycloaddition Reaction: Postsynthetic Modulation of CO2 Selectivity and Magnetic Properties in a Bimodal Metal-Organic Framework

Hazra, Arpan; Bonakala, Satyanarayana; Bejagam, Karteek K.; Balasubramanian, Sundaram; Maji, Tapas Kumar (Wiley-V C H Verlag Gmbh, 2016)

Simultaneous tuning of permanent porosity and modulation of magnetic properties by postsynthetic modification (PSM) with light in a metal-organic framework is unprecedented. With the aim of achieving such a photoresponsive ...
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 ...

Now showing items 1-20 of 45

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