title: Guanidinium dioxidobis(picolinato-κ(2)N,O)(picolinato-κO)uranate(VI).
abstract: In the title compound, (CH(6)N(3))[U(C(6)H(4)NO(2))(3)O(2)], the uranyl group is coordinated by two O and two N atoms from two chelating picolinate ligands, and one O atom from a third picolinate ligand. The coordination environment of the U(VI) atom (N(2)O(5)) is distorted penta-gonal-bipyramidal. In the crystal, all amino groups are involved in the formation of N-H⋯O and N-H⋯N hydrogen bonds, which link cations and anions into layers parallel to the ac plane.
authors.affiliation: A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospekt, 119071 Moscow,  Russian Federation.
authors.forename: Vitalii I
authors.initials: VI
authors.lastname: Mishkevich
authors.forename: Mikhail S
authors.initials: MS
authors.lastname: Grigoriev
authors.forename: Alexandre M
authors.initials: AM
authors.lastname: Fedosseev
authors.forename: Philippe
authors.initials: P
authors.lastname: Moisy