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(Nitrato-?O)bis-[5-(pyridin-2-yl)pyrazine-2-carbonitrile-?N,N]silver(I).

ABSTRACT: In the mononuclear title complex, [Ag(NO(3))(C(10)H(6)N(4))(2)], two ?(2)N:N'-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, forming an N(4)O square-pyramidal coordination geometry with one nitrate anion bonding at the apical site. The two heterocyclic rings of the 5-(2-pyridin-2--yl)pyrazine-2-carbonitrile ligand are almost coplanar [dihedral angle = 5.63?(8)°], and the two chelating ligands are in an anti relationship. The mononuclear units are inter-connected along [010] through C-H?O(nitrate) and C-H?N(cyano) inter-actions, forming an infinite chain. The mononuclear units are stacked along the a axis and inter-connected via inter-molecular ?-? stacking inter-actions between adjacent pyridine and pyrazine rings [centroid-centroid distances = 3.984?(2) and 3.595?(3)?Å], thus forming a three-dimensional supra-molecular structure.

SUBMITTER: Zhang F

PROVIDER: S-EPMC3238754 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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(Nitrato-κO)bis-[5-(pyridin-2-yl)pyrazine-2-carbonitrile-κN,N]silver(I).

Zhang Fan F Yang Yong-Li YL

Acta crystallographica. Section E, Structure reports online 20111130 Pt 12

In the mononuclear title complex, [Ag(NO(3))(C(10)H(6)N(4))(2)], two κ(2)N:N'-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, forming an N(4)O square-pyramidal coordination geometry with one nitrate anion bonding at the apical site. The two heterocyclic rings of the 5-(2-pyridin-2--yl)pyrazine-2-carbonitrile ligand are almost coplanar [dihedral angle = 5.63 (8)°], and the two chelating ligands are in an anti relationship. The mononuclear units are inter-connect ...[more]

PMID: 22199631

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