title: Tris(ethyl-enediamine)cobalt(II) sulfate.
abstract: The structure of the title compound, [Co(II)(C(2)H(8)N(2))(3)]SO(4), the cobalt example of [M(C(2)H(8)N(2))(3)]SO(4), is reported. The Co and S atoms are located at the 2d and 2c Wyckoff sites (point symmetry 32), respectively. The Co atom is coordinated by six N atoms of three chelating ethyl-enediamine mol-ecules generated from half of the ethyl-enediamine mol-ecule in the asymmetric unit. The O atoms of the sulfate anion are disordered mostly over two crystallographic sites. The third disorder site of O (site symmetry 3) has a site occupancy approaching zero. The H atoms of the ethyl-enediamine mol-ecules inter-act with the sulfate anions via inter-molecular N-H⋯O hydrogen-bonding inter-actions.
authors.affiliation: Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: Bunlawee
authors.initials: B
authors.lastname: Yotnoi
authors.forename: Athittaya
authors.initials: A
authors.lastname: Seeharaj
authors.forename: Yothin
authors.initials: Y
authors.lastname: Chimupala
authors.forename: Apinpus
authors.initials: A
authors.lastname: Rujiwatra