Thin films of tungsten nitride were deposited from Cl4(CH3CN!W~N Pr) by metallorganic chemical vapor deposition ~MOCVD! in the presence and absence of ammonia (NH3) coreactant. Films were analyzed by X-ray diffraction, Auger electron spectroscopy, and X-ray photoelectron spectroscopy ~XPS!. Films grown with NH3 had increased nitrogen levels and decreased carbon and oxygen levels relative to fil...

We report the detection of the (J,K) = (1,1), (2,2), and (3,3) inversion lines of ammonia (NH3) towards the south–western molecular lobe in M82. The relative intensities of the ammonia lines are characterized by a rotational temperature of Trot = 29 ± 5K which implies an average kinetic temperature of Tkin ≈ 60K. A Gaussian decomposition of the observed spectra indicates increasing kinetic temp...

Density functional theory calculations were performed to investigate the interactions of NH3 molecules with TiO2/MoS2 nanocomposites in order to completely exploit the adsorption properties of these nanocomposites. Given the need to further comprehend the behavior of the NH3 molecules oriented between the TiO2 nanoparticle and MoS2 monolayer, we have geometrically optimized the complex systems ...

The title compound, [Li(NH(3))(4)](+)[Li(NH(3))(3)S(3)](-), an ammo-niate of the previously unknown lithium tris-ulfide, was obtained from the reaction of lithium and sulfur in liquid ammonia. The asymmetric unit consists of two crystallographically independent formula units. The [Li(NH(3))(4)](+) cations are close to regular LiN(4) tetra-hedra. The anions contain LiSN(3) tetra-hedra; the S-S-S...

Superalkali Li3 dissolved in gaseous ammonia is investigated by density functional theory. Similar to the lithium atom, Li3 can coordinate up to four ammonia molecules. Among the structural isomers of Li3(NH3)n (n = 1-4), the one with separately distributed NH3 ligands is preferred. Most of the Li3(NH3)n species possess the alkalide characteristics and exhibit considerably large static first hy...

Limited availability of ammonia (NH3) observations is currently a barrier for effective monitoring of the nitrogen cycle. It prevents a full understanding of the atmospheric processes in which this trace gas is involved and therefore impedes determining its related budgets. Since the end of 2007, the Infrared Atmospheric Sounding Interferometer (IASI) satellite has been observing NH3 from space...

Fish are a rich source of proteins beneficial to heart and eyes. Being perishable, they are processed immediately after collection. Water consumption in fish-processing industry is very large and high strength wastewaters rich in salts, ammoniacal nitrogen (NH3-N), organic load are generated which cannot be discharged without any treatment. The present investigation describes development of bio...

Thermodynamic properties of Mg(NH2)2 and LiNH2 were investigated by measurements of NH3 pressure-composition isotherms (PCI). Van’t Hoff plot of plateau pressures of PCI for decomposition of Mg(NH2)2 indicated the standard enthalpy and entropy change of the reactions were ΔH = (120 ± 11) kJ⋅mol (per unit amount of NH3) and ΔS = (182 ± 19) J⋅mol⋅K for the reaction: Mg(NH2)2 → MgNH + NH3, and ΔH ...

vapor-liquid equilibrium in nh3-co2-h2o system at high pressures has been studied. the uniquac-nrf model for this system was extended by using the goppert 4 maurer reported datas. since the system contains molecules and ionic species the binary interaction parameters considered, where those are of molecule-molecule, molecule-ion and ion-ion types. these interaction parameters are taken as const...