catena-Poly[[silver(I)-μ-pyrazine-κ2N:N′] perchlorate]

✍ Scribed by Song, Wen-Dong ;Gu, Chang-Sheng ;Yan, Jian-Bin ;Ng, Seik Weng

• Publisher: International Union of Crystallography
• Year: 2007
• Tongue: English
• Weight: 640 KB
• Volume: 63
• Category: Article
• ISSN: 1600-5368
• DOI: 10.1107/s1600536807048969

✦ Synopsis

In the title compound, [Ag(C~4~H~4~N~2~)]ClO~4~, pyrazine ligands bridge two symmetry-related Ag atoms [Ag—N = 2.222 (3) Å] to form linear polycationic chains which run along the c axis of the orthorhombic unit cell. The Ag^I^ ion has m__2__m site symmetry. The N atoms of the pyrazine ligand lie on a crystallographic mirror plane and each C atom of this ligand possesses crystallographically imposed disorder with two components of equal occupancy. The Cl atom of the perchlorate anion has m__2__m site symmetry and the two unique O atoms of this anion lie on a mirror plane. In addition, in the crystal structure, one-dimensional chains are linked through weak interactions involving perchlorate anions [Ag...O = 2.726 (2) Å] into a motif that can be described as a 4(4).6(2) sheet.