01439nas a2200205   4500008004100000022001400041245012400055210006900179260007100248300001400319490000700333520063300340100001800973700002500991700002101016700002001037700002401057700002101081856013101102       2015                        eng d  a0020-166900aCoherent fusion of water array and protonated amine in a metal-sulfate-based coordination polymer for proton conduction0 aCoherent fusion of water array and protonated amine in a metalsu  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN  a5366-53710 v543 a<p>A new function of metal-sulfate-based co-ordination polymer (CP) for proton,conduction Was investigated through rational integration of a continuous water array and protonated amine in the coordination space of the CP. The H-bonded arrays of watet molecules along with nitrogen-rich aromatic cation (protonated melamine) facilitate proton conduction in the compound under humid conditions. Although several reports of metal-oxalate/phosphate-based CPs showing proton conduction are known, this is the first designed synthesis of a metal sulfate-based CP bearing-Water arrays functioning as a solid-state proton conductor:</p>1 aManna, Biplab1 aAnothumakkool, Bihag1 aDesai, Aamod, V.1 aSamanta, Partha1 aKurungot, Sreekumar1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/coherent-fusion-water-array-and-protonated-amine-metal-sulfate-based-coordination-polymer-001270nas a2200205   4500008004100000022001400041245014100055210006900196260011000265300001400375490000700389520039400396100002500790700002500815700002100840700002600861700002400887700002100911856013200932       2016                        eng d  a1359-734500aHigh hydroxide conductivity in a chemically stable crystalline metal-organic framework containing a water-hydroxide supramolecular chain0 aHigh hydroxide conductivity in a chemically stable crystalline m  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a8459-84620 v523 a<p>A chemically stable cationic MOF encapsulating an in situ formed water-hydroxide supramolecular anionic chain is realized for high hydroxide (OH-) ion conductivity in the solid-state (Type A). High OH- ion conductivity and low activation energy of the MOF demonstrate the advantage of the in situ incorporation of OH- ions to achieve efficient OH- ion conduction in the solid-state.</p>1 aNagarkar, Sanjog, S.1 aAnothumakkool, Bihag1 aDesai, Aamod, V.1 aShirolkar, Mandar, M.1 aKurungot, Sreekumar1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/high-hydroxide-conductivity-chemically-stable-crystalline-metal-organic-framework-containing01952nas a2200289   4500008004100000022001400041245010900055210006900164260000900233300001600242490000700258520096700265653001601232653003901248653003401287653002201321653001501343100002201358700002701380700002501407700001801432700002001450700002101470700002401491700002101515856012601536       2016                        eng d  a1433-785100aHydrogen-bonded organic frameworks (HOFs): a new class of porous crystalline proton-conducting materials0 aHydrogenbonded organic frameworks HOFs a new class of porous cry  cAUG   a10667-106710 v553 a<p>Two porous hydrogen-bonded organic frameworks (HOFs) based on arene sulfonates and guanidinium ions are reported. As a result of the presence of ionic backbones appended with protonic source, the compounds exhibit ultra-high proton conduction values (sigma) 0.75x 10(-2)Scm(-1) and 1.8x10(-2)Scm(-1) under humidified conditions. Also, they have very low activation energy values and the highest proton conductivity at ambient conditions (low humidity and at moderate temperature) among porous crystalline materials, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs). These values are not only comparable to the conventionally used proton exchange membranes, such as Nafion used in fuel cell technologies, but is also the highest value reported in organic-based porous architectures. Notably, this report inaugurates the usage of crystalline hydrogen-bonded porous organic frameworks as solid-state proton conducting materials.</p>10aguanidinium10ahydrogen-bonded organic frameworks10aporous crystalline frameworks10aproton conduction10asulfonates1 aKarmakar, Avishek1 aIllathvalappil, Rajith1 aAnothumakkool, Bihag1 aSen, Arunabha1 aSamanta, Partha1 aDesai, Aamod, V.1 aKurungot, Sreekumar1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/hydrogen-bonded-organic-frameworks-hofs-new-class-porous-crystalline-proton-conducting01827nas a2200253   4500008004100000245013400041210006900175260000800244300001600252490000700268520093800275100002201213700002301235700001801258700002001276700002101296700001801317700002101335700002501356700002101381700002101402700002101423856012901444       2016                        eng d00aUltrahydrophobic fluorous metal-organic framework derived recyclable composite as apromising platform to tackle marine oil spills0 aUltrahydrophobic fluorous metalorganic framework derived recycla  cJUL  a10937-109430 v223 aDerived from a strategically chosen hexafluorinated dicarboxylate linker aimed at the designed synthesis of a superhydrophobic metal-organic framework (MOF), the fluorine-rich nanospace of a water-stable MOF (UHMOF-100) exhibits excellent water-repellent features. It registered the highest water contact angle (approximate to 176 degrees) in the MOF domain, marking the first example of an ultrahydrophobic MOF. Various experimental and theoretical studies reinforce its distinc-tive water-repellent characteristics, and the conjugation of superoleophilicity and unparalleled hydrophobicity of a MOF material has been coherently exploited to achieve real-time oil/water separation in recyclable membrane form, with significant absorption capacity performance. This is also the first report of an oil/water separating fluorinated ultrahydrophobic MOF-based membrane material, with potential promise for tackling marine oil spillages.1 aMukherjee, Soumya1 aKansara, Ankit, M.1 aSaha, Debasis1 aGonnade, Rajesh1 aMullangi, Dinesh1 aManna, Biplab1 aDesai, Aamod, V.1 aThorat, Shridhar, H.1 aSingh, Puyam, S.1 aMukherjee, Arnab1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/ultrahydrophobic-fluorous-metal-organic-framework-derived-recyclable-composite-apromising01776nas a2200205   4500008004100000245010200041210006900143260000800212300001600220490000600236520104000242100002001282700002101302700002501323700002601348700002201374700002401396700002101420856012901441       2017                        eng d00aEnhanced proton conduction by post-synthetic covalent modification in a porous covalent framework0 aEnhanced proton conduction by postsynthetic covalent modificatio  cJUL  a13659-136640 v53 aA highly chemically stable porous covalent framework (PCF-1) based on ether linkages has been synthesized, which exhibits no loss up to similar to 500 degrees C along with retention of integrity under acidic, basic and oxidative reagent conditions. Owing to its thermal and chemical stability, post-synthetic covalent modification was executed for the introduction of pendant sulphonic acid (-SO3H) groups. The covalently modified compound (PCF-1-SO3H) presents a remarkably high conductivity (ca. 0.026 S cm(-1)), with an similar to 130 fold enhancement in proton conductivity over the parent compound. This value is comparable with those of commercially used Nafion-based proton conducting materials and stands as the highest known value in the regime of post-synthetically modified porous organic frameworks. It is noteworthy to mention that PCF-1 is stable in both acidic and alkaline media, which is not commonly observed for most of the porous materials trialed as proton conducting materials, including metal organic frameworks.1 aSamanta, Partha1 aDesai, Aamod, V.1 aAnothumakkool, Bihag1 aShirolkar, Mandar, M.1 aKarmakar, Avishek1 aKurungot, Sreekumar1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/enhanced-proton-conduction-post-synthetic-covalent-modification-porous-covalent-framework01579nas a2200205   4500008004100000245008700041210006900128260000800197300001400205490000700219520088200226100001801108700002101126700002701147700001701174700001801191700002401209700002101233856011901254       2017                        eng d00aUltrahigh ionic conduction in water-stable close-packed metal-carbonate frameworks0 aUltrahigh ionic conduction in waterstable closepacked metalcarbo  cAUG  a9710-97150 v563 aUtilization of the robust metal-carbonate backbone in a series of water-stable, anionic frameworks has been harnessed for the function of highly efficient solid-state ion conduction. The compact organization of hydrophilic guest ions facilitates water-assisted ion-conduction in all the compounds. The dense packing of the compounds imparts high ion-conducting ability and minimizes the possibility of fuel crossover, making this approach promising for design and development of compounds as potential components of energy devices. This work presents the first report of evaluating ion-conduction in a purely metal-carbonate framework, which exhibits high ion-conductivity on the order of 10(-2) S cm(-1) along with very low activation energy, which is comparable to highly conducting well-known crystalline coordination polymers or commercialized organic polymers like Nafion.1 aManna, Biplab1 aDesai, Aamod, V.1 aIllathvalappil, Rajith1 aGupta, Kriti1 aSen, Arunabha1 aKurungot, Sreekumar1 aGhosh, Sujit, K.  uhttps://library.ncl.res.in/content/ultrahigh-ionic-conduction-water-stable-close-packed-metal-carbonate-frameworks