Functionalisation of alkali-resistant nanoporous glass Au nanoparticle decoration using alkaline impregnation: catalytic activity for CO removal.

The concerted use of nano-metal particles with catalytic functions and nanoporous materials holds promise for effective air purification and gas sensing; however, only a few studies have used porous glasses as supports for Au nanoparticles. Furthermore, Au/nanoporous glasses with activities comparable to that of Au/TiO, which is a typical Au catalyst, have not been reported to date. This study demonstrates that a nanoporous glass, which is highly acid- and alkali-resistant and chemically stable, can be decorated with Au nanoparticles using an alkali impregnation method.

Photogeneration of Microporous Amorphous Coordination Polymers from Organometallic Ionic Liquids.

Ruthenium-containing organometallic ionic liquids with the B(CN) anion were developed that generate microporous amorphous coordination polymers upon UV irradiation. UV light irradiation of [Ru(C H )(C H R)][B(CN) ] (R=butyl, ethyl, octyl) quantitatively generated a yellow powder of a coordination polymer with the formula [Ru(C H ){B(CN) }] . In this reaction, the arene ligand is eliminated by UV irradiation and coordination polymer is formed by coordination of the cyano groups of the anion to the Ru ion.

Paramagnetic ionic plastic crystals containing the octamethylferrocenium cation: counteranion dependence of phase transitions and crystal structures.

In recent years, ionic plastic crystals have attracted much attention. Many metallocenium salts exhibit plastic phases, but factors affecting their phase transitions are yet to be elucidated. To investigate these factors, we synthesized octamethylferrocenium salts with various counteranions [Fe(CMeH)]X ([1]X; X = B(CN), C(CN), N(CN), FSA (= (SOF)N), FeCl, GaCl and CPFSA (= CF(SOCF)N)) and elucidated their crystal structures and phase behavior.

Coordination abilities of polycyano anions in the solid state: coordination geometries and d-d transition energies of mixed-ligand solvatochromic copper(ii) complexes with B(CN), C(CN), and N(CN) anions.

B(CN), C(CN), and N(CN) are highly versatile polycyano anions that produce various functional compounds. To investigate the coordination abilities of these anions in the solid state quantitatively, we synthesized mixed-ligand Cu(ii) complexes: [Cu(R-acac)(tmen)X] (X = polycyano anion, R-acac = acetylacetonate or butyl-acetylacetonate, tmen = tetramethylethylenediamine). The coordination abilities of the anions, increasing in the order B(CN) < C(CN) < N(CN), result in a decrease in the d-d transition energies of the complexes and the shortening of the axial coordination distance.

Effect of substituents and anions on the phase behavior of Ru(ii) sandwich complexes: exploring the boundaries between ionic liquids and ionic plastic crystals.

We recently developed ionic liquids containing cationic sandwich complexes. However, salts of the sandwich complexes often exhibit ionic plastic phases with high melting points. To explore the boundaries between ionic liquids and plastic crystals of sandwich salts, we investigated, in detail, the phase behavior of ruthenium complexes [Ru(CH)(CHR)][X] ([C0][X]: R = H, [C1][X]: R = Me, [C2][X]: R = Et, [C4][X]: R = Bu).

Structure of Saccharomyces cerevisiae mitochondrial Qri7 in complex with AMP.

N(6)-Threonylcarbamoyladenosine (t(6)A) is a modified tRNA base required for accuracy in translation. Qri7 is localized in yeast mitochondria and is involved in t(6)A biosynthesis. In t(6)A biosynthesis, threonylcarbamoyl-adenylate (TCA) is synthesized from threonine, bicarbonate and ATP, and the threonyl-carbamoyl group is transferred to adenine 37 of tRNA by Qri7.