Title: Tetra-aqua-(1,10-phenanthroline)nickel(II) 3,6-dicarboxy-bicyclo-[2.2.2]oct-7-ene-2,5-dicarboxyl-ate.
Journal: Acta crystallographica. Section E, Structure reports online 20090801
Title: Poly[[(μ(3)-5,6-dicarboxy-bicyclo-[2.2.2]oct-7-ene-2,3-dicarboxyl-ato)(1,10-phenanthroline)copper(II)] monohydrate].
Journal: Acta crystallographica. Section E, Structure reports online 20081201
Title: Tetra-aqua-(1,10-phenanthroline)zinc(II) 3,6-dicarboxy-bicyclo-[2.2.2]oct-7-ene-2,5-dicarboxyl-ate.
Journal: Acta crystallographica. Section E, Structure reports online 20080901
Title: Bicyclo-[2.2.2]oct-7-ene-2,3,5,6-tetra-carboxylic dianhydride.
Journal: Acta crystallographica. Section E, Structure reports online 20080601