The oxodiperoxo complex MoO(O2)(2)(tbbpy) (tbbpy = 4,4'-di-tert-butyl-2,2'- bipyridine) was isolated from the reaction of MoO2Cl(2)(tbbpy) in water under microwaveassisted heating at 120 masculineC for 4 h. The structure of the oxodiperoxo complex was determined by single crystal X-ray diffraction. The Mo(VI) centre is seven-coordinated with a geometry which strongly resembles a highly distorte...

The structure of scandium indium penta-deca-molybdenum nona-deca-selenide, Sc1.91In1.39Mo15Se19, is isotypic with In2.9Mo15Se19 [Grüttner et al. (1979 ▸). Acta Cryst. B35, 285-292]. It is characterized by two cluster units Mo6Se (i) 8Se (a) 6 and Mo9Se (i) 11Se (a) 6 (where i represents inner and a apical atoms) that are present in a 1:1 ratio. The cluster units are centered at Wyckoff position...

In the structure of the title compound, [Mo(C(11)H(13)NO(3))O(2)(CH(3)OH)], the Mo(VI) ion is octahedrally coordinated by two oxide O atoms, the N atom and two deprotonated OH groups of the tridentate Schiff base ligand 2-meth-oxy-6-[(2-oxidoprop-yl)imino-meth-yl]phenolate and by a methanol O atom. In the crystal structure, two complexes are linked via O-H⋯O hydrogen bonds, yielding a centrosym...

Polyoxometalates [SiM12O40](4-) (M = Mo(VI), W(VI)) and hemicyanine-derived chiral amphiphiles self-assemble in organic media where intermolecular interactions between POMs and hemicyanine units differ depending on the constituent metal ion species: this information is amplified to distinct spectral and self-assembling characteristics.

The geochemical behavior of molybdenum (Mo) in the oceans is closely linked to the presence of sulfide species in anoxic environments, where Fe availability may play a key role in the Mo scavenging. Here, we show that Mo(VI) is reduced in the presence of particulate organic matter (represented by sulfate-reducing bacteria). Molybdenum was immobilized at the surface of both living cells and dead...

Fourteen nitrosoguanidine-induced mutations that bring about temperature-sensitive morphological abnormalities resulting from a specific effect on cell division have been isolated as heterozygous phenotypic assortants in Tetrahymena pyriformis syngen 1. Genetic analysis revealed all to be single-gene recessives. Detailed analysis of the kinetics of assortment for one of the mutated alleles reve...

The formation reaction of Mg2Mo30n from MgO (single crystal) and M 0 O 3 (pellet) has been investigated in the temperature range 873—973 K. Supported by an analysis of the transport properties a mechanism is proposed involving a unidirectional transport of Mo6+ via V„0 and of oxygen via gas phase. The transport properties of MgMo04 (the other intermediate compound in the system MgO — M 0 O 3 ) ...

The Chevrel type chalcogenide with the stoichiometry Mo6.,M,Xs (M=transition metal, e.g., M,=Ru2; X=Chalcogene atom, e.g., S, Se) containing octahedral mixed-metal clusters of transition-metal atoms was investigated with respect to the oxygen reduction process in an in situ electrochemical enviroment via the EXAFS technique. The spectra analysis on Ru and MO edges as a function of applied elect...