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(a,b) Crystal structure of L2•H2O•0.5DMSO illustrating the 2+2 dimer formed with water molecules through inter and intramolecular hydrogen bonding. (c) Space-filling model showing the two water molecules bridging between two L2 molecules. A disordered DMSO molecule is omitted for clarity. The O(1S)⋯O(4) distances is 2.821(4) Å.
