Cobalt‐loaded MFI zeolite showed distinct activity for direct methylation of benzene with methane into toluene. High activity was found at around 0.6 of Co/Al molar ratio. Incorporation of carbon from methane into the methyl group of toluene was confirmed with isotope tracer experiments and mass spectroscopy. Ammonia infrared‐mass spectroscopy temperature‐programmed desorption, transmission electron microscopy, X‐ray absorption near edge spectroscopy and extended X‐ray absorption fine structure indicated that Lewis acidic divalent (+II of oxidation state) Co species mono‐atomically dispersed on the ion exchange site of MFI zeolite was the active species.

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Epitaxial growth of organized molecular films of alkylammonium-Au bis(1, 3-dithiole-2-thione-4, 5-dithiolate) ((dmit) 2 ) charge-transfer complex on fluorinated copolymer as template estimated by in-plane X-ray diffraction (XRD). In the single crystal, didodecylammonium-Au(dmit) 2 molecules packed triclinic lattice. From the in-plane XRD measurement of multilayers on hydrogenated solids, alkyl-chains of this complex also formed triclinic system. The orthorhombic packing of this complex film formed on fluorinated crystalline polymer as substrate. This structural transition is induced by crystal structure of fluorinated copolymer as template. On the other hand, disordered molecular arrangement in these two-dimensional films formed on the amorphous fluorinated copolymer.

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2     The molecular arrangement and surface morphology of organized molecular films of alkylammoniumM bis(1, 3dithiole2thione4, 5dithiolate) ((dmit) 2 , M = Ni, Au, and Pd) chargetransfer complexes were investigated by using the surface pressure-area isotherm, inplane and outof plane Xray diffractions (XRD), and atomic force microscopy.  In the bulk state, several alkylammoniumM(dmit) 2 molecules could not form a highly ordered layer structure along the axis and a subcell structure of the alkyl chain in the plane; however, almost all molecules formed a layer structure in the film multilayers.  Monolayers of alkylammoniumM(dmit) 2  salts on the water surface were relatively condensed.  Outof planeandinplaneXRDmeasurementsrevealedthatoveralongperiod,systematicchangesoccurredinthe twodimensional lattice of alkylammoniumM(dmit) 2 salts and not in their bulk state.  These structural changes appear to be caused by enhancement of the van der Waals interaction among long hydrocarbons and the ππ interaction among M(dmit) 2  units arranged twodimensionally.  In addition, both the molecular arrangement and the morphology of the films showed dependence on the hydrocarbon length, number of alkyl chains, and kind of central metal.  In particular, the molecular arrangement of materials havingdidecylchainschangeddrasticallyandM(dmit) 2 unitswerehighlyorientedintheplane.  Keywords: alkylammoniummetal(dmit) 2 ; layer structure; twodimensional lattice; molecular arrangement; surfacemorphology   Alkylammoniummetal bis(1, 3dithiole2 thione4, 5dithiolate) (M(dmit) 2 ) complexes exhibit a variety of electrical properties ranging from dielectric to superconducting. 1     LangmuirBlodgett (LB) films of dialkyl ammoniumAu(dmit) 2  salts exhibited a high lateral conductivity of 40-100 S/cm at room temperature after electrochemical oxidation or I 2  doping; these films also showed metallic temperature dependence of the conductivity.2   Furthermore, the ac magnetic susceptibility and resistance of these films suggested the existence of a superconducting phase below 4 K.3   Nakamura et al. conducted pioneering studies on structural and conductive properties of LB films containing M(dmit) 2  with various central metals.4   Miura and Sugi conducted extensive research on conductiveLBfilmsofchargetransfercomplexes containingdimt.2,3,5  It has been elucidated that fieldeffect doping (FEdoping)isaneffective carrierdoping method...