Kaluderović Goran N, Mohamad Eshkourfu Rabia O, Gómez-Ruiz Santiago, Mitić Dragana, Andelković Katarina K
Acta Crystallogr Sect E Struct Rep Online. 2010 Mar 24;66(Pt 4):o904-5. doi: 10.1107/S1600536810010238.
The title salt, C(16)H(18)N(6)O(2) (2+)·2ClO(4) (-)·2H(2)O, was obtained unintentionally as a major product in the reaction of Zn(ClO(4))(2)·6H(2)O with the N',N'(2)-bis-[(1E)-1-(2-pyrid-yl)ethyl-idene]ethanedihydrazide (H(2)L) ligand. The (H(4)L)(2+) cation lies across a centre of inversion. The pyridiniumimine fragments of (H(4)L)(2+) adopt syn orientations. Intra-molecular N-H⋯N and N-H⋯O hydrogen bonds lead to the formation of S(5) motifs. In the crystal, neighbouring cations are connected by π-π inter-actions between pyridinium units with a centroid-centroid distance of 3.600 (1) Å. Moreover, the crystal components are assembled into two-dimensional layers via N-H⋯O and O-H⋯O hydrogen bonds, with no direct hydrogen-bonding inter-actions between cations.
标题盐C(16)H(18)N(6)O(2)(2+)·2ClO(4)(-)·2H(2)O是在Zn(ClO(4))(2)·6H(2)O与N',N'(2)-双-[(1E)-1-(2-吡啶基)亚乙基]乙二酰二肼(H(2)L)配体的反应中无意得到的主要产物。(H(4)L)(2+)阳离子位于一个对称中心上。(H(4)L)(2+)的吡啶基亚胺片段采取顺式取向。分子内的N-H⋯N和N-H⋯O氢键导致形成S(5) motif。在晶体中，相邻阳离子通过吡啶鎓单元之间的π-π相互作用相连，质心间距为3.600 (1) Å。此外，晶体组分通过N-H⋯O和O-H⋯O氢键组装成二维层，阳离子之间没有直接的氢键相互作用。
