【摘要】 以负三价、五啮的N-乙酰水杨酰肼(ashz3-)作为配体,合成了二个大环六核氮杂金属冠醚犤MnⅢ6(ashz)6(MeOH)6犦·6MeOH(1)和犤MnⅢ6(ashz)6(DMF)6犦·3DMF(2)。晶体学数据是:配合物1,三方晶系,空间群R3珔,a=b=24.806(2),c=11.260(1)?,Z=3,μ=1.007mm-1,R=0.0572,wR=0.1142;配合物2,三方晶系,空间群R3珔,a=b=26.629(3),c=23.298(4)?,Z=6,μ=0.856mm-1,R=0.0671,wR=0.1661。这两个配合物属18-氮杂金属冠醚-6结构类型,冠醚分子具有晶体学C3i对称性。配体ashz3-通过它的肼基的N-N桥连金属原子,从而形成有中央空穴的六核锰的大环配合物。变温磁化率(4～275K)研究表明,配合物1中金属离子间存在着反铁磁性耦合。更多还原

【Abstract】 Two macrocyclic hexanuclear azaMetallacrowns,[Mn Ⅲ6 (ashz) 6 (MeOH) 6 ]·6MeOH(1)and[Mn Ⅲ6 (ashz) 6 (DMF ) 6 ]·3DMF (2),were prepared using a trianionic pentadentate ligand N-acylsalicylhydrazide(ashz 3- ).The crystal data are trigonal R3,a=b=24.806(2),c=11.260(1)*!,Z =3,μ=1.007mm -1 ,R=0.0572,wR=0.1142for complex1and trigonal R3,a=b=26.629(3),c=23.298(4)*!,Z =6,μ=0.856mm -1 ,R=0.0671,w R=0.1661for complex2.They are of 18-azametallacrown-6s tructure type.The metallacrown molecules in two title complexes hav e a crystallographic C 3i symmetry.The triple-deprotonated ligand ashz 3- in the title complexes bridges the metal io ns by a hydrazide N-N group,forming a hexanuclear manganese metallmacro-cycle with a cavity in the center.The magnetic susceptibility(4～275K)study indicates that there is an anti fer-romagnetic exchange interaction in the title compound1.CCDC:192835(complex1);192836(complex2).更多还原