The family of dehydrated nanoporous Prussian Blue analogues, M(II)3[Co(III)(CN)6]2 (M(II) = Mn, Fe, Co, Ni, Cu, Zn, Cd), which contain coordinatively unsaturated divalent metal cations, undergoes reversible sorption of hydrogen gas up to 1.2 wt% (at 77 K, 101.3 kPa), the capacity of which depends on the metal ion.

We have obtained sensitive upper limits on the CO J=2-1 and CO J=3-2 emission lines for five faint blue galaxies with redshifts z ∼ 0.5 using the IRAM 30 m telescope. These observations would have been able to detect the luminous infrared galaxy IRAS F10214+4724 if it were located at this redshift and unlensed. However, they are not sensitive enough to detect the prototype starburst galaxy M82 ...

With thiocyanate, zinc(II), cobalt(II) and copper(II) ions form stable anion, [M(SCN)4] . This anion in turn with methylene blue (MB) forms ion-pair of the type MB2[M(SCN)4] and turns methylene blue to violet. The stoichiometry and stability constants of the ion-association complexes were determined using BenesiHildebrand method and the stoichiometry was confirmed by Job’s continuous variation ...

Cobalt nanoparticles were synthesized using the gamma radiolytic technique, and particle size was found to be reduced from 12±1 7±1 nm by increasing dose 10 60 kGy. The UV-visible absorption spectra measured exhibited a steady maxima at 517 in UV region, which blue-shifted toward lower wavelength with decrease size. By taking conduction electrons of an isolated that are not entirely free but in...

Glutamate mutase catalyses an unusual isomerization involving free-radical intermediates that are generated by homolysis of the cobalt-carbon bond of the coenzyme adenosylcobalamin (coenzyme B(12)). A variety of techniques have been used to examine the interaction between the protein and adenosylcobalamin, and between the protein and the products of coenzyme homolysis, cob(II)alamin and 5'-deox...

Any archaeological artefact made from recyclable material may have been recycled before deposition. Three approaches are presented which identified recycling in the record: (1) application of log ratio analyses to investigate compositional data indicates that Roman glass was and reapplied as a glaze on Parthian pottery, thereby suggesting paucity Sasanian record is due recycling; (2) linear mix...