We developed novel air-stable 2D polymerized photonic crystal (2DPC) sensing materials for visual detection of gas phase analytes such as water and ammonia by utilizing a new ionic liquid, ethylguanidine perchlorate (EGP) as the mobile phase. Because of the negligible ionic liquid vapor pressure these 2DPC sensors are indefinitely air stable and, therefore, can be used to sense atmospheric anal...

At 100 K, the title mol-ecular salt, C3H8NO+·C2F6NO4S2-, has ortho-rhom-bic (P212121) symmetry; the amino H atom of bis-(tri-fluoro-methane-sulfon-yl)amine (HNTf2) was transferred to the basic O atom of di-methyl-formamide (DMF) when the ionic liquid components were mixed. The structure displays an O-H⋯N hydrogen bond, which links the cation to the anion, which is reinforced by a non-convention...

The AsF6 anion, in the crystalline polymer electrolyte PEO6:LiAsF6, was replaced with the larger N(SO2CF3)2 anion. This produced an increase in the room temperature ionic conductivity of 1.5 orders of magnitude. It is believed that the enhancement is the result of the disruption of the electrostatic field around the lithium ions. The presence of the large and asymmetrical N(SO2CF3)2 ion creates...

Controlling crystal orientations and macroscopic morphology is vital to develop the electronic properties of hybrid perovskites. Here we show that a large-area, orientationally pure crystalline (OPC) methylammonium lead iodide (MAPbI3) hybrid perovskite film can be fabricated using a thermal-gradient-assisted directional crystallization method that relies on the sharp liquid-to-solid transition...

The electronic structure of nitrogen atoms as impurities in an ionic T i0 2 crystal has been investigated by analyzing electric field gradients (EFGs) measured by use of short-lived /3-emitting N implanted following nuclear reactions. Conventional ß-NMR and its modification, suitable for the detection of quadrupole effects in the NMR spectra, were used for the investigation of hyperfine interac...

Jel44 is a mouse monoclonal antibody specific for the histidine-containing phosphocarrier protein (HPr), a component of a sugar-transport system in Escherichia coli. Because Jel44 binding to HPr is dependent upon ionic strength and the enthalpic and entropic contributions do not vary over the temperature range 277-310 K, the complex is of great interest. A single crystal of the Jel44 Fab fragme...

A polyoxomolybdate inorganic-organic hybrid crystal was synthesized with deprotonatable ionic-liquid surfactant. 1-dodecylimidazolium cation was employed for its synthesis. The hybrid crystal contained δ-type octamolybdate (Mo₈) isomer, and possessed alternate stacking of Mo₈ monolayers and interdigitated surfactant bilayers. The crystal structure was compared with polyoxomolybdate hybrid cryst...

Compared to the reported method, relatively high pure silver sulfide iodide (Ag3SI) crystal, a kind of super-ionic conductor, was synthesized in a more facile procedure through the designed melt-cooling technique followed by a heat-treatment at 160°C for half an hour, which is confirmed by the corresponding X-ray Diffraction patterns. Utilizing the designed differential thermal analyzer method,...

In this work we report on the conductivity, thermal and electrochemical behaviour of one member of a new family of organic plastic crystal electrolytes, the N,N’-trimethylenepyrazolium trifluoromethanesulfonimide, Pyr5. The salt shows a single plastic crystalline phase with ionic conductivities reaching up to 10-3 S.cm-1 in the solid state at low doping levels with a lithium imide salt. The Tem...