Four　nanometer-sized　cobalt　azametallacrowns,　[Co-6(C8H6N3O3)(6)(CH3OH)(6)].10CH(3)OH.2H(2)O　(1),　[Co-6(C8H5N2O3)(6-)　(CH3OH)(6)].5CH(3)OH.0.5H(2)O　(2),　[Co-6(C9H7N2O3)(6)(CH3OH)(6)].6CH(3)OH　(3),　and　[Co-6(C10H9N2O3)(6)(CH3OH)(6)].7CH(3)OH.2H(2)O　(4)　have　been　synthesized　by　the　self-assembly　reaction　of　cobalt　ions　with　N-substituted　salicylhydrazide　ligands.　The　cobalt　atoms　in　the　four　azametallacrowns　adopt　a　propeller　configuration.　The　chiralities　of　the　cobalt　atoms　alternate　between　the　Lambda　and　Delta　forms.　In　1,　there　are　two　encapsulated　methanol　solvent　molecules　in　the　＇host＇　cavity　of　the　azametallacrown　molecule,　whereas　in　2-4　there　are　no　guest　molecules　in　the　`host＇　cavities　of　the　azametallacrowns.