Pd and Ru are two key elements of the platinum-group metals that are invaluable to areas such as catalysis and energy storage/transfer. To maximize the potential of the Pd and Ru elements, significant effort has been devoted to synthesizing Pd-Ru bimetallic materials. However, most of the reports dealing with this subject describe phase-separated structures such as near-surface alloys and physi...

The endogenous adrenocortical response to sepsis is critical for host survival. The in vivo interactions among the endogenous glucocorticoid response, the induction of cytokines, and host survival during endotoxemia were explored in this study by use of the glucocorticoid receptor antagonist RU 486. Male Lewis rats underwent sterile insertion of a right jugular venous catheter. After a 72-h rec...

In the title solvated triangulo-triruthenium compound, [Ru(3)(C(18)H(15)O(3)P)(C(29)H(30)P(2))(CO)(9)]·2CHCl(3), the bis-(di-o-tolyl-phosphan-yl)methane (dtpm) ligand bridges one of the Ru-Ru bonds and the monodentate phosphine ligand bonds to the third Ru atom. All the P atoms are equatorial with respect to the Ru(3) triangle: each Ru atom also bears one equatorial and two axial terminal carbo...

We have analyzed structure, stability, and Ru-NO bonding of the trans-[RuCl(NO)(NH3)4]2+ complex by using relativistic density functional theory. First, we focus on the bond dissociation energies associated with the three canonical dissociation modes leading to [RuCl(NH3)4]++NO+, [RuCl(NH3)4]2++NO, and [RuCl(NH3)4]3++NO-. The main objective is to understand the Ru-NO+ bonding mechanism in the c...

The hemerythrin-type dinuclear title complex, [Ru2(CH3COO)2O(C10H8N2)2(C5H5N)2](PF6)2, consists of two Ru(III) ions with a six-coordinate octa-hedral geometry, bridged by an oxide and two acetate ligands, with a bidentate 2,2'-bipyridine ligand and a pyridine ligand bonding at terminal positions. The Ru-Ru distance and Ru-O-Ru angle are 3.2838 (3) Å and 121.79 (7)°, respectively, and the averag...

Dioxoruthenium(VI) porphyrins including those containing chiral porphyrinato ligands can be readily prepared by oxidation of [RuII(Por)(CO)(MeOH)] with PhIO or metachloroperoxybenzoic acid. Similar reactions with PhINTs gave [Ru(Por)(NTs)2] isolated as air stable solids at room temperature. The [Ru(Por)O2] complexes are competent oxidants for epoxidation of alkenes with high selectivities. Enan...

Reaction of [RuVI(N)(L1)(MeOH)]+ (L1 ) N,N′-bis(salicylidene)-o-cyclohexylenediamine dianion) with excess pyridine in CH3CN produces [Ru(L)(py)2] and N2. The proposed mechanism involves initial equilibrium formation of [RuVI(N)(L1)(py)]+, which undergoes rapid N · · · N coupling to produce [(py)(L1)RuIIINtN-RuIII(L1)(py)]2+; this is followed by pyridine substituion to give the final product. Th...

The asymmetric unit of the title triangulo-triruthenium cluster, [Ru(3)(C(25)H(22)As(2))(C(19)H(17)PS)(CO)(9)]·0.5CHCl(3), contains of one mol-ecule of the triangulo-triruthenium complex and half a mol-ecule of the disordered (two positions of equal weight) chloro-form solvent. The bis-(diphenyl-arsino)methane ligand bridges an Ru-Ru bond and the monodentate phosphine ligand bonds to the third ...