Results 231 to 240 of about 66,485 (249)

[In situ FTIRS studies of reduction of [OsVI(N)(NH3)4](CF3SO3)3 in acetonitrile].

Guang pu xue yu guang pu fen xi = Guang pu, 2004
In this paper, the electrochemical cyclic voltammetry, UV/Vis and in situ FTIR spectroscopy were used to study the electrochemical reduction of [OsVI(N)(NH3)4](CF3SO3)3 on GC and Pt electrode in acetonitrile. The results demonstrated that the N-N coupling can occur between [OsVI(N)(NH3)4]3+ and the osmium(V) species generated at the electrode.
Chen, SP, Huang, GX, Sun, SG
openaire   +2 more sources

Thermochemistry of (H2SO4)m(H2O)n(NH3)k: A DFT Study

2007
H 2 SO 4 -H 2 O and H 2 SO 4 -H 2 O-NH 3 nucleation rates in earth's atmosphere are very sensitive to thermodynamics of initial growth steps. However, reliable data on thermochemistry of small H 2 SO 4 -H 2 O and H 2 SO 4 -H 2 O-NH 3 clusters are lacking. This theoretical study is dedicated to the quantum modeling of H 2 SO 4 -H 2 O and H 2 SO 4 -H 2 O-
Fangqun Yu, Alexey B. Nadykto
openaire   +1 more source

Magnetic studies of the layered compounds (CH2)n(NH3)2FeCl4, n = 2, 3 and 6

Physica B+C, 1982
Abstract The magnetic susceptibility as a function of temperature and field strength of the series of compounds (CH2)n(NH3)2FeCl4, n = 2, 3 and 6 have been investigated. The three compounds undergo magnetic transitions at TN(H = 0) = 105.0±1, 94.5+0.5 and 98.0+0.5 K.
M.F. Mostafa, M.A. Semary, M.M. Abdel-Kader   +2 more
openaire   +1 more source

Removal of ammoniacal nitrogen (N-NH3) from municipal solid waste leachate by using activated carbon and limestone

Waste Management & Research: The Journal for a Sustainable Circular Economy, 2004
The presence of ammoniacal nitrogen (N-NH3) in leachate is one of the problems normally faced by landfill operators. Slow leaching of wastes producing nitrogen and no significant mechanism for transformation of N-NH3 in the landfills causes a high concentration of ammoniacal nitrogen in leachate over a long period of time.
Hamidi Abdul, Aziz, Mohd Nordin, Adlan, Mohd Shahrir Mohd, Zahari, Salina, Alias   +3 more
openaire   +2 more sources

VFA dan N-NH3 Daun Gamal (Gliricidia sepium) pada Ransum Sapi Potong Secara In Vitro

Jurnal Ilmu dan Teknologi Peternakan Tropis, 2021
ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh penggantian konsentrat dengan daun gamal (Gliricidia sepium) terhadap produksi VFA total dan N-NH3 secara in vitro dengan pakan basal jerami padi dengan rasio konsentrat dan jerami padi 60%:40%.
Ifani, Merryafinola, Rimbawanto, Efka Aris, Hartoyo, Bambang, Nugroho, Agung Prastyo   +3 more
openaire   +1 more source

Luminescence Measurements of the Hyperthermal Reactions of N/N⁺ + NH₃

The Journal of Physical Chemistry A, 2023
Chemiluminescence from a system of collisions, N+/N/Kr+/Kr/Xe+/Xe + NH3, at collision energies between 10 and 170 eV (center of mass, COM), was measured in the spectral range 300-1000 nm. The energy dependence of the emission excitation cross sections was quantified, and molecular signatures were fit to known spectroscopic constants to determine ...
Michael L. Hause, Benjamin D. Prince
openaire   +2 more sources

Electrical conductivity of the compounds (CH2)n(NH3)2FeCl4−xBrx (n = 8,9 and 10, x = 0,1 and 2)

Journal of Physics and Chemistry of Solids, 1988
Abstract The electrical conductivity of the compounds (CH 2 ) n (NH 3 ) 2 FeCl 4− x Br x ( n = 8, 9 and 10 and ( x = 0, 1 and 2) was measured in the temperature range from liquid nitrogen up to near the melting point of the samples. The effects of a gradual replacement of Cl − ions by Br − ions as well as the effect of layer spacing on the ...
M.A. Ahmed, F.A. Radwan
openaire   +1 more source

81Br NQR Study of [NH3(CH2)nNH3]CdBr4 (n = 4 and 5) and [NH3(CH2)nNH3]ZnBr4 (n = 5 and 6)

Hyperfine Interactions, 2005
81Br NQR frequencies and differential scanning calorimetry (DSC) were measured as a function of temperature. [NH3(CH2)4 NH3]CdBr4 (1) and [NH3(CH2)5NH3]CdBr4 (2) showed a doublet and quartet 81Br NQR spectrum, respectively. [NH3(CH2)5NH3]ZnBr4 (3) and [NH3(CH2)6NH3]ZnBr4 (4) exhibited a four-line 81Br NQR spectrum.
Hideta Ishihara, Keizo Horiuchi
openaire   +1 more source

Effect of organic chain length on structure, electronic composition, lattice potential energy, and optical properties of 2D hybrid perovskites [(NH3)(CH2) n (NH3)]CuCl4, n = 2–9

Applied Physics A, 2017
Diammonium series of Cu hybrid perovskites of the formula [(NH3)(CH2) n (NH3)]CuCl4, n = 6–9 are prepared from an ethanolic solution in stoichiometric ratio 1:1 (organic/inorganic). Formation of the desired material was confirmed and characterizes by microchemical analysis, FTIR, XRD and XPS spectra.
Seham K. Abdel-Aal, Gudrun Kocher-Oberlehner, Andrei Ionov, R. N. Mozhchil   +3 more
openaire   +1 more source

PERDAS POR VOLATILIZAÇÃO DE N-NH3 EM FERTILIZANTES NITROGENADOS ADITIVADOS DE EXTRATOS VEGETAIS

Anais do Anais do V Simpósio ABC - Solos e Saúde Ambiental, 2021
Rosimar De Souza GOULART, Orlando Carlos Huertas TAVARES, Luiz Fernando Grégio GONÇALVES, Everaldo ZONTA, Juliano Bahiense STAFANATO, Nelson MAZUR   +5 more
openaire   +1 more source