Solids with Rhombic Channels: Syntheses and Crystal Structures of [Cu(3)(NTA)(2)(4,4'-bpy)(2)(H(2)O)(2)].9H(2)O and [{Cu(4,4'-bpy)(H(2)O)(4)}{Cu(2)(NTA)(2)(4,4'-bpy)}]. 7H(2)O (NTA = Nitrilotriacetate, 4,4'-bpy = 4,4'-Bipyridine).