The title compound, NH(4) (+)·C(11)H(7)O(3) (-), was obtained by slow evaporation of a 30% ammonia solution of 1-hydr-oxy-2-naphthoic acid. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds, forming layers parallel to the bc plane.

[NEt3Me][O3] was obtained for the first time by an ion exchange reaction in liquid ammonia. It thoroughly characterized X-Ray diffraction [P21; a = 598.51(4) pm, b 1032.03(7) c 723.83(6) β 92.677(3)°, R 0.0384, 15070 reflections] applying non-spherical and spherical atomic form factors refinements. In contrast to previous reported ozonides, is crystallize WC type shows untypical hydrogen bond b...

The biotransformation of some micropollutants has previously been observed to be positively associated with ammonia oxidation activities and the transcript abundance of the archaeal ammonia monooxygenase gene (amoA) in nitrifying activated sludge. Given the increasing interest in and potential importance of ammonia-oxidizing archaea (AOA), we investigated the capabilities of an AOA pure culture...

Gaseous ammonia, a common toxic industrial compound, is not detected readily in ion trap mass spectrometers because its molecular ion falls below the low-mass cutoff (~m/z 40) normally used when examining organic compounds. Instead, reactions of ammonia with halobenzene radical cations were used with internal electron ionization in two cylindrical ion trap miniature mass spectrometers to create...

A crystal structure and thermal characterization of a multisite Schiff base containing N2O2-inner O4-outer coordination sites are reported. The title compound was characterized by X-ray analysis, 1H-NMR, 13C-NMR ATR-FTIR spectroscopy, TG/DSC TG-FTIR techniques. crystallizes as methanol solvate in the triclinic system, space group P1¯. stable at room temperature compound, during heating air, fir...

Arginine catabolism produces ammonia without transferring nitrogen to another compound, yet the only known pathway of arginine catabolism in Escherichia coli (through arginine decarboxylase) does not produce ammonia. Our aims were to find the ammonia-producing pathway of arginine catabolism in E. coli and to examine its function. We showed that the only previously described pathway of arginine ...

The analytical potential of the reaction of ammonia with o-phthalaldehyde mercaptoethanol reagent at pH 7 (an atypical fluorescence) has already been demonstrated. This, coupled with additional findings reported here, has led to an ammonia determination well suited to nitrogenase studies. As a result, large numbers of samples can be rapidly analyzed by high-pressure liquid chromatrography metho...

Nitrogen compounds, especially ammonia, are widely produced in aquaculture systems during cultivation. Ammonia has been investigated as a model compound for use by heterotrophic nitrifying bacteria. Pseudomonas TT321 and TT322, isolated from shrimp pond water Soc Trang province, Vietnam, identified comparing them with 31 of the closest genomes sequences NCBI nucleotide database. The genome size...

The widespread occurrence of amino derivatives of the sugars in products of plant and animal origin suggests the possibility that amino derivatives of the uronic acids may likewise be of importance. The uronic acids have the characteristic structures of both aldoses and aldonic acids, and hence, like the aldoses, might be expected to yield glycosyl amines [1] and like the lactones of the aldoni...