01890nas a2200229 4500008004100000022001400041245014400055210006900199260007300268300001200341490000800353520100000361653002501361653002801386653002501414653001301439653001701452100002001469700002401489700001801513856012901531 2008 eng d a1387-181100aNew microporous MOF material based on Zn(II)-polycarboxylate coordination polymer synthesized with the aid of 1,6-diaminohexane as template0 aNew microporous MOF material based on ZnIIpolycarboxylate coordi aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC a204-2090 v1163 a

A new microporous metal-organic framework (MOF) material ZBTEC-1 has been synthesized by designing infinite coordination polymer network formed between Zn(II) and 1,2,4,5-benzenetetracarboxylic acid (BTEC) under solvothermal conditions in the presence of 1,6-diaminohexane (DAH) as a single molecule template. Powder XRD data demonstrate that the ZBTEC-1 material has a new MOF structure. N-2 sorption studies indicated moderately good surface area (306 m(2) g(-1)) with large size micropores (average pore diameter ca. 0.7 nm) and very high pore volume (1.93 ccg(-1)). C-13 solid state MAS-NMR, FT-IR and UV-visible spectroscopic studies showed the presence of BTEC moieties in the framework. TEM and FE-SEM analysis indicated 30-60 nm diameter size microporous spherical particles for the ZBTEC-1 crystallites. This novel MOF material showed good hydrogen adsorption capacity at 77 K, indicating its potential application in hydrogen storage. (C) 2008 Elsevier Inc. All rights reserved.

10aCoordination polymer10aMetal-organic framework10aMicroporous material10aporosity10aZinc complex1 aChandra, Debraj1 aKasture, Mahesh, W.1 aBhaumik, Asim uhttp://library.ncl.res.in/content/new-microporous-mof-material-based-znii-polycarboxylate-coordination-polymer-synthesized-002046nas a2200253 4500008004100000022001400041245012300055210006900178260007100247300001400318490000700332520110900339653001901448653001701467653002101484653002801505653002501533100002101558700001601579700002701595700001901622700002001641856013101661 2011 eng d a0897-475600aStructural isomerism and effect of fluorination on gas adsorption in copper-tetrazolate based metal organic frameworks0 aStructural isomerism and effect of fluorination on gas adsorptio a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN a2908-29160 v233 a

Synthesis, structure, and gas adsorption properties of three Metal Organic Frameworks (MOFs) synthesized from predesigned ligands 4-(1H-tetrazole-5-yl)benzoic acid (4-TBA) and 2-fluoro-4-(1H-tetrazole-5-yl)benzoic acid (2F-4-TBA) along with Cu(II) as an metal precursor has been reported. Among these MOFs, Cu-9(4-TBA)(10)(C2H5OH)(2) (Cu-TBA-1) and Cu-2(4-TBA)(2)(DMF)(C2H5OH) (Cu-TBA-2) are structural isomers. Whereas, Cu-2(4-TBA)(2)(DMF)(C2H5OH) (Cu-TBA-2) and Cu-2(2-F-4-TBA)(2)(DMF)(2) (Cu-TBA-2F) have similar crystal structure. N-2 adsorption isotherms of the activated sample of Cu-TBA-1 and -2 exhibit types-I sorption behavior with a Langmuir and Brunauer-Emmett-Teller (BET) surface area of 686, 402 m(2)/g and 616, 356 m(2)/g, respectively. It is noteworthy that Cu-TBA-1 and -2 adsorbs 1.16 and, 1.54 wt % H-2, while Cu-TBA-2F adsorbs 0.67 wt % at 77 K and 1 atm. On the other hand, Cu-TBA-1 and -2 adsorb 3.08 and 2.54 mmol/g, while Cu-TBA-2F adsorbs 1.27 mmol/g of CO2 at 298 K and 1 bar pressure. H-2 adsorption sites in Cu-TBA-2 and -2F have been analyzed by molecular simulation.

10aCO2 adsorption10afluorination10aHydrogen storage10aMetal-organic framework10astructural isomerism1 aPachfule, Pradip1 aChen, Yifei1 aSahoo, Subash, Chandra1 aJiang, Jianwen1 aBanerjee, Rahul uhttp://library.ncl.res.in/content/structural-isomerism-and-effect-fluorination-gas-adsorption-copper-tetrazolate-based-metal-001868nas a2200217 4500008004100000022001400041245010900055210006900164260011200233300001400345490000700359520100900366653001901375653001901394653001701413653002101430653002801451653002501479100002001504856012601524 2012 eng d a0019-452200aFunctionalized metal organic frameworks (MOFs) for reversible gas storage and sequestration applications0 aFunctionalized metal organic frameworks MOFs for reversible gas  a5-A, NEW PALI RD, PO BOX 91, NEAR HOTEL TAJ HARI MAHAL, JODHPUR, 342 003, INDIAbSCIENTIFIC PUBL-INDIAcSEP a1197-12020 v893 a

The decreasing amount of fossil fuels and increasing threat of global warming from the pollutants have driven the search for clean energy source. Energy sources from fossil fuels still remain in the forefront despite being a major source of increased CO2 content in the atmosphere. Metal Organic Frameworks (MOFs) have emerged as promising materials for hydrogen storage and CO2 sequestration. Several factors influencing the hydrogen uptake of porous MOFs such as surface area, catenation, ligand functionalization, doping with alkali metals and unsaturated metal centers have been extensively studied. Similarly, well defined periodicity and tunable pore sizes along with less basic amino-functionalized MOFs enables them favorable for fast and reversible CO2 gas adsorption at low partial pressure and room temperature. In this review we present diverse aspects of metal organic frameworks like fluorination, amino functionalization for high hydrogen storage and CO2 sequestration capabilities.

10acarbon capture10aCO2 adsorption10afluorination10aHydrogen storage10aMetal-organic framework10astructural isomerism1 aBanerjee, Rahul uhttp://library.ncl.res.in/content/functionalized-metal-organic-frameworks-mofs-reversible-gas-storage-and-sequestration-002515nas a2200289 4500008004100000022001400041245014300055210006900198260000800267300001400275490000600289520149400295653004001789653002001829653002001849653002001869653002801889653001901917100001701936700002601953700002201979700002402001700002102025700001802046700003002064856013102094 2019 eng d a2574-097000aAqueous-phase differentiation and speciation of Fe3+ and Fe2+ using water-stable photoluminescent lanthanide-based metal-organic framework0 aAqueousphase differentiation and speciation of Fe3 and Fe2 using cAUG a5169-51780 v23 a

Fe2+ is vital to O-2 transportation and photosynthesis regulated by oxidases and reductases. On the other hand, Fe3+ is detrimental due to its irreversible binding to O-2. Hence there is a need for selective identification of Fe3+ from aqueous systems in the presence of Fe2+. However, given their close chemical nature, it is not straightforward to differentiate them. Fe2+ and Fe3+ are typically sensed and differentiated using magnetic measurements, Mossbauer, X-ray absorption spectroscopy, or EXAFS, which are complex and equipment intensive techniques. In comparison, the fluorescence technique is advantageous in terms of time and accessibility. Although readily available lanthanide salts exhibit fluorescence, they are weak, and to serve as an optical probe, their luminescence has to be enhanced via ligand design. Hence we have designed a chromophoric ligand that can covalently bind to lanthanides and enhance its fluorescence intensity, and it binds selectively to Fe3+ through its nitrogen centers. It detects Fe3+ from low concentration (similar to 100 mu M) aqueous solutions, with fast response time (<1 min) and with a detection limit of 3.6 ppm. Importantly, the Fe3+ adsorbed MOF can be readily reactivated for the next cycle by merely washing with an aqueous ascorbic acid solution and can be used for multiple cycles without any appreciable loss in activity. This makes the Ln-MOF an environmentally benign, cost-effective, scalable, and recyclable probe.

10aFe3+ differentiation and speciation10aflexible ligand10afluorescent MOF10airon speciation10aMetal-organic framework10awater sorption1 aMaity, Rahul1 aChakraborty, Debanjan1 aNandi, Shyamapada1 aYadav, Ankit, Kumar1 aMullangi, Dinesh1 aVinod, C., P.1 aVaidhyanathan, Ramanathan uhttp://library.ncl.res.in/content/aqueous-phase-differentiation-and-speciation-fe3-and-fe2-using-water-stable-photoluminescent