title: The azide-bridged mixed-valent cobalt(II,III) compound [(CH(3))(3)NH](2)[CoCo(2)(N(3))(10)].
abstract: The crystal structure of the title compound, poly[bis-(tri-methyl-ammonium) hexa-μ(1,1)-azido-tetra-azido-tricobalt-ate(II,III)], [(CH(3))(3)NH](2)[Co(II)Co(III) (2)(N(3))(10)], consists of anionic chains [Co(II)Co(III) (2)(N(3))(10)](2-) extending parallel to the c axis and [(CH(3))(3)NH](+) counter-cations situated between the chains. In the anionic chain, one tetra-hedrally coordinated Co(II) atom (site symmetry 2) and two octa-hedrally coordinated Co(III) atoms are arranged alternately and are linked by μ(1,1)-azide bridges. The anionic chains and cations are connected via N-H⋯N hydrogen bonding into a three-dimensional structure.
authors.affiliation: Pharmacy College, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, People's Republic of China.
authors.forename: Yan-Ju
authors.initials: YJ
authors.lastname: Liu
authors.forename: Yu-Xian
authors.initials: YX
authors.lastname: Li
authors.forename: Min
authors.initials: M
authors.lastname: Xu
authors.forename: Xia
authors.initials: X
authors.lastname: Wang