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Letter

Nature Materials 4, 211–215 (1 March 2005) | doi:10.1038/nmat1321

High-energy-density extended CO solid

Magnus J. Lipp , William J. Evans , Bruce J. Baer & Choong-Shik Yoo

Covalently bonded extended phases of molecular solids made of first- and second-row elements at high pressures are a new class of materials with advanced optical, mechanical and energetic properties. The existence of such extended solids has recently been demonstrated using diamond anvil cells in several systems, including nitrogen, carbon dioxide and carbon monoxide.