Reference of 1121-79-5, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 1121-79-5, molcular formula is C5H5ClN2, introducing its new discovery.
New acyclic receptors containing pyridazine units. The influence of pi-stacking on the selective transport of lipophilic phenethylamines
The synthesis of four new series of acyclic heteroaromatic receptors is described. They are built by two flexible polyether chains functionalised at their end with pyridazinone or methylpyridazine rings and connected by pyridine or benzene units. Their ability as carriers of lipophilic and hydrophilic phenethylamines and metallic cations has been evaluated. Transport rates show that, in general, these compounds are much more efficient carriers of lipophilic amines than of dopamine and Na+, K+ and Ca2+ ions. Their transport selectivities towards phenethylamine and homoveratrylamine are discussed on the basis of their structural features. Molecular modelling studies suggest that interaction of the aromatic moiety of the guest with the pyridazinone rings via double pi-stacking, or with the pyridine ring by single pi-stacking, should be responsible of their enhanced efficacy and selectivity in the transport of lipophilic phenethylamines.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 1121-79-5 is helpful to your research. Reference of 1121-79-5
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N654 – PubChem