The disclosure relates to dicarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The disclosure relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.

Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided.

Disclosed are surface immobilized (electro)catalysts that may be prepared by a condensation reaction that generates an aromatic unit that is robust to acid and base and elevated temperatures. Among their many desirable characteristics, the catalysts are far less prone to the bimolecular deactivation pathways commonly observed for homogeneous catalysts, and may be used in solvents with a range of polarities and dielectric strengths. The catalysts are suitable for a wide array of thermal catalytic reactions (polymerization, oxidation, hydrogenation, cross-coupling etc.) and as anodes and/or cathodes in fuel cells, electrolyzers, and in batteries and supercapacitors.

Disclosed herein is a class of co-ordination framework materials having various useful properties. The co-ordination frameworks comprise complexes of M.sub.2[M(CN).sub.6] or A.sub.x(M.sub.2[M(CN).sub.6]), wherein M is selected from V, Cr, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Ru, Rh, Pd and Pt; M is selected from Fe and Ru; A (when present) is located in the pores of the framework and is selected from Li.sup.+, Na.sup.+, K.sup.+, Be.sup.2+, Mg.sup.2+ and Ca.sup.2+; and x (when present) is 0<x8. Also disclosed are methods of making said materials and various uses of said materials.

Metal coordination complexes comprising a metal atom coordinated to at least one diazabutadiene ligand having a structure represented by: ##STR00001## where each R is independently a C1-C13 alkyl or aryl group and each R is independently H, C1-C10 alkyl or aryl group are described. Processing methods using the metal coordination complexes are also described.

Described herein are catalytic hydrogenation processes, using Ru complexes with tetradentate ligands of formula L in hydrogenation processes for the reduction of ketone, aldehyde, ester, or lactone into the corresponding alcohol or diol respectively. These processes use a ruthenium complex of formula (1) as defined herein.

The application relates to a strongly-polarized molecule of the following general formula: wherein A denotes a group having a polarizability greater than 2 C.Math.m.sup.2/V; R.sub.1 and R.sub.2 are respectively hydrogen, halogen, a hydroxyl group, an amino group, a cyano group, a nitro group, a carboxyl group, a C.sub.1-12 alkyl group, a C.sub.1-12 alkoxy group, a halogenated C.sub.1-12 alkyl group, a halogenated C.sub.1-12 alkoxy group, a hydroxyl C.sub.1-12 alkyl group, a hydroxyl C.sub.1-12 alkoxy group, or a C.sub.1-12 alkyl amino group; x.sub.1 and x.sub.2 denote 0 or an integer no less than 1, respectively; and y.sub.1 and y.sub.2 denote 0 or an integer no less than 1, respectively. The application further relates to a strongly-polarized molecule-graphene molecule heterojunction, and a single molecule field effect transistor comprising a substrate, a gate, a dielectric layer and the strongly-polarized molecule-graphene molecule heterojunction; and the dielectric layer is located between the gate and the strongly-polarized molecule-graphene molecule heterojuction. The single molecule field effect transistor provided by the application can realize highly-efficient gate modulation.

##STR00001##

Described herein are catalytic hydrogenation processes, using Ru complexes with tetradentate ligands of formula L in hydrogenation processes for the reduction of ketone, aldehyde, ester, or lactone into the corresponding alcohol or diol respectively. These processes use a ruthenium complex of formula (1) as defined herein.

The invention relates to the use of a metal complex, which has at least one ligand of the formula R.sup.1N.sub.3R.sup.2, wherein R.sup.1 and R.sup.2 are hydrocarbon moieties, for depositing the metal or a compound of the metal from the gas phase. The invention further relates to methods for depositing metals from the metal complexes, and to metal complexes, substituted triazene compounds and to methods for the production thereof.

The present invention relates to a compound represented by the formula (1.sup.A). G represents a group selected from the group consisting of a monovalent group represented by the formula (G.sup.P) and a monovalent group represented by the formula (G.sup.S). R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, and R.sup.12 each independently represent a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogeno group, and a halogeno alkyl group.

##STR00001##