Structure
Its structure consist of -- chains in which the linear two-coordinate Ag+ ions, typical of silver(I) and other d10 ions are bridge by the cyanide ions. (This is the same binding mode as seen in the more famous case of Prussian blue.) These chains then pack hexagonally with adjacent chains ofset by +/- 1/3 of the "c" lattice parameter. This is the same as the structure adopted by the high temperature polymorph of copper(I) cyanide. The silver to carbon and silver to nitrogen bond lengths in AgCN are both ~2.09 Å and the cyanide groups show head-to-tail disorder.
Read more about this topic: Silver Cyanide
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