Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.330792-70-6, Name is 3-Amino-5-(4-phenoxyphenyl)pyrazole-4-carbonitrile, SMILES is N#CC1=C(N)NN=C1C2=CC=C(OC3=CC=CC=C3)C=C2, belongs to pyrazoles-derivatives compound. In a document, author is Goodwin, Jack W., introduce the new discover, Computed Properties of C16H12N4O.
Structural and spectroscopic insights on the coordination chemistry of the rigid heterotopic chelating ligand 1H-pyrazolo[4,3-h]quinoline
In this work, we report the coordination chemistry of a rigid heterotopic ligand 1H-pyrazolo[4,3-h]quinoline HL1 in copper(II) and zinc(II) complexes and examine both the structural properties and solution-phase behavior of these species. On reaction with zinc(II) nitrate in acetonitrile, a mononuclear complex [Zn(HL1)(2)(OH2)(2)](NO3)(2) 1 is generated, where a size mismatch between the metal ion and the binding pocket leads to an anomalously long Zn-N bond to the pyrazole nitrogen. This is consistent with solution-state absorption and fluorescence measurements which indicate a relatively low stability constant log beta of 9.1(3) in acetonitrile. The reaction of HL1 with copper(II) nitrate in methanol gave four new crystalline phases, the major forms of which are two polymorphs of [Cu-2(mu(2)-L1)(2)(NO3)(2)(MeOH)(2)] 2 alpha and 2 beta which also constitutes the dominant solution-phase behavior of this mixture. Additionally, trace amounts of the nitric acid salt of HL1 were crystallized along with the slow formation of a tetranuclear species [Cu-4(mu(2)-L1)(6)(OH2)(2)](NO3)(2) center dot 2MeOH3 which also features anomalously long bridging distances from L1 as a result of its backbone rigidity. [GRAPHICS]
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 330792-70-6 is helpful to your research. Computed Properties of C16H12N4O.
Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics