(Dicyanamido)[tris(2-pyridylmethyl)amine]zinc(II) perchlorate

Hong Li,Hong Yan Zhao,Shi Guo Zhang

doi:10.1107/s1600536808004741

Hong Li, Hong Yan Zhao + Show 1 more

Open Access

https://doi.org/10.1107/s1600536808004741

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Abstract

In the title complex, [Zn(C2N3)(C18H18N4)]ClO4, the ZnII ion has a slightly distorted trigonal–bipyramidal ZnN5 coordination geometry. The crystal structure is stabilized by weak intermolecular C—H⋯O and C—H⋯N hydrogen bonds. In addition, there are relatively close contacts between the O atoms of the perchlorate anion and symmetry-related pyridine rings [O⋯Cg = 3.179 (3) and 3.236 (3) Å, where Cg is the centroid of a pyridine ring], and between the terminal N atom of the dicyanamide ligand and pyridine rings [N⋯Cg = 3.381 (4)–3.761 (3) Å]. The central N atom of the dicyanamide ligand is disordered over two sites in an approximately 0.6:0.4 ratio.

Highlights

In the title complex, [Zn(C2N3)(C18H18N4)]ClO4, the ZnII ion has a slightly distorted trigonal–bipyramidal ZnN5 coordination geometry
The crystal structure is stabilized by weak intermolecular C—HÁ Á ÁO and C—HÁ Á ÁN hydrogen bonds
There are relatively close contacts between the O atoms of the perchlorate anion and symmetry-related pyridine rings [OÁ Á ÁCg = 3.179 (3) and 3.236 (3) A, where Cg is the centroid of a pyridine ring], and between the terminal N atom of the dicyanamide ligand and pyridine rings [NÁ Á ÁCg = 3.381 (4)–3.761 (3) A ]

Summary

Structure Reports Online

Key indicators: single-crystal X-ray study; T = 298 K; mean (C–C) = 0.005 A; disorder in main residue; R factor = 0.043; wR factor = 0.107; data-to-parameter ratio = 15.6. The crystal structure is stabilized by weak intermolecular C—HÁ Á ÁO and C—HÁ Á ÁN hydrogen bonds. There are relatively close contacts between the O atoms of the perchlorate anion and symmetry-related pyridine rings [OÁ Á ÁCg = 3.179 (3) and 3.236 (3) A , where Cg is the centroid of a pyridine ring], and between the terminal N atom of the dicyanamide ligand and pyridine rings [NÁ Á ÁCg = 3.381 (4)–3.761 (3) A ]. The central N atom of the dicyanamide ligand is disordered over two sites in an approximately 0.6:0.4 ratio. Related literature For related literature, see: Makowska-Grzyska et al (2003); Sun et al (2003); Martin et al (2001)

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