Four　homochiral　metal　camphorates　with　auxiliary　bipyridine　ligands　are　hydrothermally　synthesized　and　structurally　characterized.　The　structure　of　compound　[Cd(D-Hcam)(2)(bpa)(H2O)](n)　(1:　D-H(2)cam　=　D-(+)-camphoric　acid,　bpa　=　1,2-bis(4-pyridyl)-ethane)　presents　a　rare　case　where　the　D-Hcam　is　not　a　bridging　ligand,　but　a　dangling　unit　attached　to　the　infinite　[Cd(bpa)]　chain.　Compounds　[M-2(D-cam)(2)(4.4＇-bipy)(H2O)(4)](n)　(M　=　Co,　2;　M　=　Cd,　3;　4,4＇-bipy　=　4,4＇-bipyridine)　are　isostructural　and　have　homochiral　[M(D-cam)10　chains　linked　by　the　4,4＇-bipy　ligands　into　a　honeycomb-like　63　layer.　Compound　[Zn-2(D-cam)(2)(PPE)(2)](n)　(4,　PPE　=1-(4-pyridyl)-2-(2-pyridyl)-ethylene)　consists　of　the　grid-like　4(4)　layers　with　thedinuclear　Zn-2(COO)(4)　units　and　D-cam　ligands,　where　the　PPE　ligands　are　only　monodentately　coordinated　to　the　dinuclear　units　and　act　as　the　separators　between　two　homochiral　layers.　The　results　demonstrate　the　rich　coordination　chemistry　of　the　enantiopure　D-camphorate　ligand　and　the　structural　diversity　of　metal-camphorate　compounds.　(C)　2011　Elsevier　B.V.　All　rights　reserved.