Self-assembled tetrameric H<sub>2</sub>O clusters in the crystal lattice of [Cu(μ<sup>2</sup>-OH){Ph<sub>2</sub>P(O)NP(O)Ph<sub>2</sub>-κ<sup>1</sup><i>O,O′</i>}(1,10-phen-κ<sup>2</sup><i>N,N′</i>)]<sub>2</sub>·2H<sub>2</sub>O
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The synthesis and characterization of the dinuclear Cu(II) complex [Cu(μ2-OH){Ph2P(O)NP(O)Ph2-κ1O,O′}(1,10-phen-κ2N,N′)]2·2H2O (1), 1,10-phen = 1,10-phenanthroline, is described. X-ray crystallographic studies reveal that the Cu(II) centers of 1 are bridged by two OH− groups and are coordinated by the (O,O) = Ph2P(O)NP(O)Ph2− ligand in a monodentate fashion, unprecedented for Cu(II). The crystal lattice of 1 also contains H2O molecules, which are involved in the formation of a hydrogen bonding network with bridging OH− groups and noncoordinated O atoms of the (O,O) ligand. These H2O molecules are arranged in the crystal lattice of 1 as tetrameric clusters. The packing of molecules in the structure of 1 was investigated by Hirshfeld Surface analysis.
