02081nas a2200241   4500008004100000022001400041245011300055210006900168260006700237300001400304490000700318520123700325653001401562653001101576653000801587653001701595100001901612700001801631700001601649700003001665700002101695856012301716       2016                        eng d  a0887-624X00aSite-selective synthesis and characterization of BODIPY-acetylene copolymers and their transistor properties0 aSiteselective synthesis and characterization of BODIPYacetylene   a111 RIVER ST, HOBOKEN 07030-5774, NJ USAbWILEY-BLACKWELLcJUL  a1978-19860 v543 a<p>To study the effect of site-selective copolymerization of borondipyrromethene (BODIPY) with acetylene on the structural and optoelectronic properties, three copolymers P1-P3 were synthesized by the Sonogashira cross-coupling of BODIPY units with diacetylene and bromine capping through all the possible linkages: alpha-alpha (P1), alpha-beta (P2), and beta-beta (P3). The optoelectronic properties of the polymers were investigated systematically to understand the effect of site-selective polymerization. The HOMO levels of the polymers were significantly tuned from P1 to P3 with negligible change in the LUMO levels. Broadening of absorption spectra from P3 to P1 was observed because of increase in the extent of conjugation. Additionally, the charge transport properties of these polymers in organic thin-film transistors (OTFTs) revealed that P1 and P3 exhibited only p-type mobility, whereas P2 exhibited electron mobility. Notably, the further investigations of the surface morphology of polymer films by atomic force microscopy (AFM) unveiled that comb like nanostructural arrangements in P3 was beneficial for the charge-carrier mobility over the circular arrangements in P1 and P2. (C) 2016 Wiley Periodicals, Inc.</p>10aacetylene10aBODIPY10aDFT10alow-band gap1 aDebnath, Sashi1 aSingh, Saumya1 aBedi, Anjan1 aKrishnamoorthy, Kothandam1 aZade, Sanjio, S.  uhttps://library.ncl.res.in/content/site-selective-synthesis-and-characterization-bodipy-acetylene-copolymers-and-their00993nas a2200289   4500008004100000022001400041245012000055210006900175260001100244300001600255490000700271653001400278653001300292653000700305653001700312653002800329100002500357700002800382700002000410700002600430700002700456700002200483700002500505700002200530700002100552856013000573       2024                        eng d  a2050-748800aSynthesis of Hofmann-based metal-organic frameworks incorporating a bis-pyrazole linker for various gas separations0 aSynthesis of Hofmannbased metalorganic frameworks incorporating   cJUN 25  a15106-151140 v1210aacetylene10aC2H2/CH410aNi10aPurification10aSPIN-CROSSOVER BEHAVIOR1 aMatthews, Brooke, L.1 aHarvey-Reid, Nathan, C.1 aJangodaz, Elnaz1 aScott, Victoria-Jayne1 aPolson, Matthew, I. J.1 aMaibam, Ashakiran1 aBabaRao, Ravichandar1 aTelfer, Shane, G.1 aKruger, Paul, E.  uhttps://library.ncl.res.in/content/synthesis-hofmann-based-metal-organic-frameworks-incorporating-bis-pyrazole-linker-various