Syntheses and Magneto−Structural Study of Several Polynuclear Copper(II) Complexes Derived from 1,3-Bis(dimethylamino)-2-propanolato

The syntheses, structural characterization, and magnetic behavior of the three new polynuclear copper(II) complexes
with formulas [Cu4(η2:μ-CH3COO)2(μ-OH)2(μ-OH2)(μ-bdmap)2](ClO4)2·H2O (1), [Cu8(NCO)2(η1:μ-NCO)4(μ-OH)2(μ3-OH)2(μ-OH2)3(μ-bdmap)4](ClO4)2·2H2O (2), and [Cu9(η1:μ-NCO)8(μ3-OH)4(OH2)2(μ-bdmap)4](ClO4)2·4H2O (3),
in which bdmapH is 1,3-bis(dimethylamino)-2-propanol, are reported. Tetranuclear complex 1 crystallizes in the
triclinic system, space group P1̄, with unit cell parameters a = 12.160(1) Å, b = 13.051(1) Å, c = 13.235(1) Å,
α = 110.745(1)°, β = 109.683(1)°, γ = 97.014(1), and Z = 2. Octanuclear complex 2 crystallizes in the monoclinic
system, space group C2/c, with unit cell parameters a = 26.609(1) Å, b = 14.496(1) Å, c = 16.652(1) Å, β =
97.814(1)°, and Z = 4, and nonanuclear complex 3 crystallizes in the monoclinic system, space group C2/c, with
unit cell parameters a = 24.104(1) Å, b = 13.542(1) Å, c = 24.355(1) Å, β = 109.98(1)°, and Z = 4. The
magnetic behavior of the three complexes has been checked showing strong antiferromagnetic coupling in all the
cases.