The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Application In Synthesis of H-Ala-OiPr, 39825-33-7, Name is H-Ala-OiPr, SMILES is C[C@H](N)C(OC(C)C)=O, in an article , author is Wang, Ke, once mentioned of 39825-33-7.
Theoretical investigations on novel energetic salts composed of 4-nitro-7-(4-nitro-1,2,3-triazol-1-olate)-furazano[3,4-d]pyridazine-based anions and ammonium-based cations
Based on density functional theory and volume-based thermodynamics methods, the crystal densities (rho), heats of formation (HOFs), detonation performance, specific impulse (I-sp), impact sensitivities (H-50) and Gibbs free energies of formation of eight series novel energetic salts composed of 4-nitro-7-(4-nitro-1,2,3-triazol-1-olate)-furazano[3,4-d] pyridazine-based anions and ammonium-based cations were studied. Results show that all title salts possess high rho and positive HOFs. Therein, ammonium and hydroxylammonium salts exhibit the highest rho and detonation performance in each series and several even surpass those of HMX and RDX. For guanidinium-based salts in every series, when the number of -NH2 group in cations increases, the HOFs, I-sp and H-50 of corresponding salts improve, but their rho values decrease. Consequently, detonation performance of guanidinium-based salts are close to each other (H series are similar to RDX). Otherwise, introducing N -> O oxidation bond to anions is an effective method to improve rho, detonation performance and I-sp of the corresponding salts compared A with B-H series, but it decreases H-50. However, all guanidinium-based salts show lower impact sensitivities than RDX and HMX. Meanwhile, the position of N -> O oxidation bond also has an effect on these properties. (C) 2018 Elsevier B.V. All rights reserved.
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Reference:
Pyridazine – Wikipedia,
,Pyridazine | C4H4N2 – PubChem