1431375-74-4Relevant academic research and scientific papers
Structures of protonated bis(pyridine-2-yl) ketone arylhydrazone derivatives: [(C5H4N)(C5H4NH)C= NNHC6H4Y]+[X]- (Y,X = 3-O 2N,Cl: 4-Me,Cl:)
De Lima, Geraldo M.,Wardell, James L.,Howie, R. Alan,Wardell, Solange M. S. V.
, p. 36 - 43 (2013)
The crystal structures of two salts of protonated bis(pyridine-2-yl) ketone arylhydrazone derivatives, [(C5H4N)(C5H 4NH)C=NNHC6H4Y]+[X]-, 2 (Y,X = 3-O2N,Cl), and the trihydrate of 3 (X,Y = 4-Me,Cl), are reported from data collected at 120 K. The cations in 2 and 3 exhibit different conformations, which have consequences in the type and number of intra- and intermolecular interactions exhibited. Three dimensional arrays are generated for both compounds by different combinations of intermolecular interactions. In 2, the cations are linked directly by π-π stacking interactions and by C-H...O hydrogen bonds, as well as by bridging chloride ions. The cations in [(3)·3H2O] are directly again linked by π-π stacking and also by C-H...π interactions, and indirectly via chloride ions and water molecules. Compound 2 crystallises in the monoclinic space group P21/c, with a = 14.4210(4) A, b = 9.1543(3) A, c = 12.3365(3) A, β, 104.583(2)o and Z = 4. Compound 3 crystallises in the triclinic space group P-1, with a = 8.1352(2) A, b = 10.0278(3) A, c = 12.1482(4) A, α = 106.4290(14)o, β = 92.8080(18)o, 90.3920(18)o, Z = 2. Graphical Abstract: [Different three dimensional arrays are generated by different combinations of intermolecular interactions in [(C5H4N)(C 5H4NH)C = NNHC6H4Y] +[X]-, 2 (Y,X = 3-O2N,Cl), and the trihydrate of 3 (X,Y = 4-Me, Cl.][Figure not available: see fulltext.].
