351900-47-5Relevant academic research and scientific papers
Crystal structure and magnetic properties of [C6H4(CH2NH3)2] [CuCl3(H2O)]Cl·H2O
Haddad, Salim F.,Willett, Roger D.,Landee, Christopher P.
, p. 94 - 98 (2001)
The preparation, crystal structure and magnetic properties of the title compound, (1,3-xylylenediammonium)auqatrichlorocuprate(II) chloride hydrate, have been determined. It is monoclinic, space group P21/c, with a = 12.711(2), b = 6.122(1), c = 19.175(5)? and β = 96.72(2)° with V = 1481.6(5)?3 for Z = 4. The structure contains several architectural features of significance. The compound contains planar CuCl3(H2O)- anions with Cu-Cl distances ranging from 2.2590(8) to 2.3239(6)? and a Cu-O distance of 1.991(2)?. The anions form stacks through the formation of long (3.06?, average) semi-coordinate Cu···Cl bonds. Hydrogen bonding involving the coordinated and lattice water molecules ties the stacks together into two-dimensional arrays. The diammonium cations form organic layers interleaved between the inorganic arrays. The cations are anchored to the inorganic arrays by an efficient -NH3···Cl hydrogen-bonding network. Magnetic measurements indicate that weak antiferromagnetic interactions (2J/k = -3.06K) exist in the system, which is attributed to exchange coupling mediated by the semi-coordinate Cu···Cl bonds.
