N-(3-Methyl-phen-yl)pyrimidin-2-amine.

Two independent mol-ecules comprise the asymmetric unit in the title compound, C(11)H(11)N(3). These differ in terms of the relative orientations of the aromatic rings: the first is somewhat twisted, while the second is approximately planar [dihedral angles between the pyrimidine and phenyl rings = 39.00 (8) and 4.

Tetra-μ-acetato-κO:O'-bis-[(N-ethyl-pyrimidin-2-amine)-copper(II)](Cu-Cu).

In the centrosymmetric title mol-ecule, [Cu(2)(CH(3)COO)(4)(C(6)H(9)N(3))(2)], each of the four acetate groups bridges a pair of Cu(II) atoms [Cu-Cu = 2.6540 (4) Å]. The distorted octa-hedral geometry of the metal atom is completed by an N-donor atom of the N-ethyl-pyrimidin-2-amine ligand: an intra-molecular N-H⋯O hydrogen links its N-H group to an acetate carboxyl-ate O atom.

N-(Pyrimidin-2-yl)aniline.

There are two molecules in the asymmetric unit of the title compound, C(10)H(9)N(3), with inter-ring dihedral angles of 31.1 (1) and 35.3 (1)°.