Structural and Magnetic Studies of Dimeric Copper(II) 2,2-Diphenylpropanoato and Triphenylacetato Complexes with Oxygen-Donor Ligands. the Cage Geometry of Dimeric α-Phenyl Substituted Copper(II) Carboxylates

The syntheses, structures, and magnetic properties of copper(II) carboxylates with bridging α-phenyl substituted carboxylato ligands and unidentate oxygen-donor ligands are reported: Cu2 (O2CCPh2Me)4(acetone)2 (1), triclinic , a = 15.441(4), b = 15.602(4), c = 12.790(2) A, α = 106.52(2), β = 92.11(2), γ = 96.38(2)°, V = 2928(1) A3, Z = 2, −2J = 352 cm−1; [Cu2(O2CCPh2Me)4(H2O)2]·H2O (2), triclinic , a = 13.895(2), b = 14.717(2), c = 7.318(1) A, α = 95.67(1), β = 101.71(1), γ = 68.12(1)°, V = 1359.3(4) A3, Z = 1, −2J = 344 cm−1; [Cu2(O2CCPh2Me)4(EtOH)2]·EtOH (3), monoclinic P21/c, a = 26.927(5), b = 9.152(3), c = 26.881(5) A, β = 115.02(1)°, V = 6003(2) A3, Z = 4, −2J = 347 cm−1; [Cu2(O2CCPh3)4(Ph3CCO2H)2]·CH2Cl2 (4), monoclinic P21/c, a = 18.133(8), b = 23.046(7), c = 25.013(7) A, β = 101.01(3)°, V = 10268(5) A3, Z = 4; [Cu2(O2CCPh3)4(H2O)2]·4H2O (5a), tetragonal , a = 18.451(6), c = 10.703(7) A, V = 3643(3) A3, Z = 2; [Cu2(O2CCPh3)4(H2O)2]·2H2O (5b), tetragonal , a = 18.224(2), c = 10.776(5) A, V = 3578(1...

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