New Copper(II) and Cobalt(II) Complexes with the N,N′‐Bis(antipyryl‐4‐methyl)‐piperazine (BAMP) Ligand: Co₂(BAMP)Cl₄ and [Cu(BAMP)(H₂O)](ClO₄)₂

Abstract

Abstract The syntheses and the crystal structures of the complexes Co 2 (BAMP)Cl 4 ( 1 ) and [Cu(BAMP)(H 2 O)](ClO 4 ) 2 (2 ) are reported. 1 crystallizes in the monoclinic space group C2/c with the unit cell dimensions a = 3129.7(4), b = 772.9(1), c = 1503.4(2) pm, β = 112.47(1)° and Z = 4. Cobalt(II) is surrounded in the fashion of a distorted tetrahedron built from the NO donor atoms of the BAMP ligand and two chloride anions. The copper compound 2 crystallizes in the monoclinic space group I2/a with unit cell dimensions of a = 2539.0(3), b = 1448.1(1), c = 1887.0(2) pm, β = 93.40(1)° and Z = 8. Copper(II) coordination can be described as a square‐based pyramid with the N 2 O 2 donor atoms of the BAMP molecule forming the basal plane completed by a water molecule in the apical position. Spectroscopic (IR and UV‐Vis) and conductivity data of the new complex compounds are presented.