Fig. 1: Structures of relatively thermally stable c-N5- containing compounds.
From: Taming cyclo-pentazolate anions with a hydrogen-bonded organic framework

a Lithium-pentazolate framework. b Biguanidinium pentazolate. c c-N5-@HOF (this work).
From: Taming cyclo-pentazolate anions with a hydrogen-bonded organic framework

a Lithium-pentazolate framework. b Biguanidinium pentazolate. c c-N5-@HOF (this work).