CHEMICAL REACTIONS AT VERY LOW PRESSURES. II. THE CHEMICAL CLEAN-UP OF NITROGEN IN A TUNGSTEN LAMP

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Chemical nitrogen fixation by using molybdenum and tungsten complexes*

Dinitrogen complex cis-[W(N2)2(PMe2Ph)4] reacts with an excess of acidic dihydrogen complexes such as trans-[RuCl(η-H2)(dppe)2]BF4 (dppe = 1, 2-bis(diphenylphosphino)ethane) at 55 °C under 1 atm of H2 to form ammonia in moderate yield. The reaction is presumed to proceed through nucleophilic attack of the remote nitrogen of the coordinated dinitrogen on the dihydrogen ligand. The coordinated di...

The Rate of Decomposition of Nitrogen Pentoxide at Very Low Pressures.

(3) The reaction time of the direct growth-response is constant for a particular intensity of illumination, provided that the duration of the exposure period exceeds a certain value. Below that value the reaction time increases as the exposure time decreases. This is also true for the phototropic response. (4) The manner in which the reaction time of each mode of response varies as a function o...

Chemical reactions.

Physical and chemical transformations of sodium cyanide at high pressures.

Pressure-induced physical and chemical transformations of sodium cyanide (NaCN) have been studied up to 50 GPa in diamond-anvil cells, using micro-Raman spectroscopy and angle-resolved synchrotron x-ray diffraction. We observe three phase transitions in this pressure range: NaCN-IIA (orthorhombic, Immm), to NaCN-IIB (orthorhombic, Pmmn) at 4 GPa, to NaCN-III (monoclinic, Cm) at 8 GPa, and to Na...