The synthesis,structure and magnetism of tetranuclear complexes,[Ln_(4)(LH_(2))_(2)(η^(1)-Piv)_(2)(η^(2)-Piv)_(2)(μ_(3)-O_(2))_(2)(H_(2)O)_(2)]·2MeOH(1,Ln=Gd^(Ⅲ);2,Ln=Tb^(Ⅲ);3,Ln=Dy^(Ⅲ);and 4,Ln=Er^(Ⅲ))(LH...The synthesis,structure and magnetism of tetranuclear complexes,[Ln_(4)(LH_(2))_(2)(η^(1)-Piv)_(2)(η^(2)-Piv)_(2)(μ_(3)-O_(2))_(2)(H_(2)O)_(2)]·2MeOH(1,Ln=Gd^(Ⅲ);2,Ln=Tb^(Ⅲ);3,Ln=Dy^(Ⅲ);and 4,Ln=Er^(Ⅲ))(LH_(4)=6-((bis(2-hydroxyethyl)amino)-N’-(2-hydroxybenzylidene)picolinohydrazide)(piv=pivalate ion)are reported.Interestingly,the formation of these tetranuclear assemblies is assisted by two side-on coordinating peroxide ligands which bind in aμ^(3)-η^(2):η^(2):η^(2) fashion.展开更多
基金University Grants Commission(UGC),India,for the Senior Research Fellowship.S.K.S.and P.P.S.acknowledge the Department of Science and Technology for the Start-up Research Grant(SRG/2020/001323).S.K.S.thanks IIT Hyderabad for generous seed grant fundingThe support and resources provided by the PARAM Shivay Facility under the National Supercomputing Mission,Government of India at the Indian Institute of Technology,Varanasi,are gratefully acknowledged.F.P.,J.F.G.,and O.C.thank the European Research Council through the ERCCoG 725184 MULTIPROSMM(project no.725184)。
文摘The synthesis,structure and magnetism of tetranuclear complexes,[Ln_(4)(LH_(2))_(2)(η^(1)-Piv)_(2)(η^(2)-Piv)_(2)(μ_(3)-O_(2))_(2)(H_(2)O)_(2)]·2MeOH(1,Ln=Gd^(Ⅲ);2,Ln=Tb^(Ⅲ);3,Ln=Dy^(Ⅲ);and 4,Ln=Er^(Ⅲ))(LH_(4)=6-((bis(2-hydroxyethyl)amino)-N’-(2-hydroxybenzylidene)picolinohydrazide)(piv=pivalate ion)are reported.Interestingly,the formation of these tetranuclear assemblies is assisted by two side-on coordinating peroxide ligands which bind in aμ^(3)-η^(2):η^(2):η^(2) fashion.
