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Intermolecular interactions in 2,4-dinitrophenylhydrazine hydrochloride hydrate: X-ray structural and quantum mechanical study

100%
Kruszynski R.
Open Chemistry
|
2008
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vol. 6
|
issue 4
542-548
EN
2,4-dinitrophenylhydrazine hydrochloride hydrate (I) was determined by X-ray crystallography, and the intermolecular interaction energies were calculated in terms of Natural Bond Orbital analysis. The asymmetric unit of (I) consists of a dinitrophenylhydrazinium cation, a chloride anion and a water molecule. The interatomic distances and angles in (I) show no unusual values. In the structure there are intermolecular N-H⊎⊎⊎O, N-H⊎⊎⊎Cl, O-H⊎⊎⊎Cl, C-H⊎⊎⊎O hydrogen bonds with bonding energy ranging form 16.03 to 0.76 kcal mol−1. These hydrogen bonds create the following N1 motifs: 6D, S(5), S(6), C(6), C(9). N1D motifs become infinite at the third level and are 2C 32(6), C 32(7). [...]
2
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Kinetic spectrophotometric determination of hydrazine

100%
Mitic V., Nikolic S., Stankov-Jovanovic V.
Open Chemistry
|
2010
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vol. 8
|
issue 3
559-565
EN
A kinetic spectrophotometric method for hydrazine determination in the range of 9.36×10−7 to 4.37×10−5 mol dm−3, based on the inhibitory effect of hydrazine on the oxidation of Victoria Blue 4- R by KBrO3, was developed and validated. Kinetic parameters are reported for both the indicating and the inhibiting reaction. The detection limit was established as 9.98×10−8 mol dm−3. The selectivity of the proposed method was tested considering the influence of different ions that may be present in real samples. The method was successfully applied for hydrazine determination in various samples (very pure water from the water-steam system of a power plant and Isoniazid tablets, a pharmaceutical product). [...] The novel kinetic spectrophotometric method proposed was found to have satisfactory analytical characteristics as well as being widely applicable due to its simplicity and speed.
3
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A thermodynamic study on catalytic decomposition of hydrazine in a space thruster

75%
Pakdehi S., Shirvani F., Zolfaghari R., Pakdehi S., Shirvani F., Zolfaghari R.
Archives of Thermodynamics
|
2019
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vol. 40
|
issue 4
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