By using squarates as coordination building units,six new complexes formulated as[Mg(C_(4)O_(4))(H_(2)O)_(2)]n(1),[Pr_(2)(C_(4)O_(4))_(2)(OA)(H_(2)O)_(4)]n(2),[Eu_(2)(C_(4)O_(4))3(H_(2)O)_(8)]n(3)[Cd_(2)(C_(4)O_(4))_(...By using squarates as coordination building units,six new complexes formulated as[Mg(C_(4)O_(4))(H_(2)O)_(2)]n(1),[Pr_(2)(C_(4)O_(4))_(2)(OA)(H_(2)O)_(4)]n(2),[Eu_(2)(C_(4)O_(4))3(H_(2)O)_(8)]n(3)[Cd_(2)(C_(4)O_(4))_(2)(bpdo)(H_(2)O)_(4)]n(4),[Cd(C_(4)HO_(4))_(2)(H_(2)O)_(4)]·(MV)_(2)·(C_(4)O_(4))_(2)(5),and[Cd(C_(4)HO_(4))_(2)(H_(2)O)_(4)]·(EV)·(C_(4)HO_(4))_(2)(6),where(C_(4)O_(4))_(2)-=squarate,OA=oxalic acid,MV=methyl viologen,EV=ethyl viologen,and bpdo=4,4’-dipyrdiyl-N,N’-dioxide,have been synthesized under hydro/solvothermal conditions.They present structural dimensions from 3-D networks(1,2),2-D layers(3,4)to 0-D clusters(5,6)based on the versatile bridged modes of squarates and the introduction of second ligands.In particular,5 and 6 are the first examples incorporating squarates(electronic-rich species)with viologens(electronic-poor species)in one lattice.Consequently,they exhibit not only photocurrent responses but also reversible thermochromism,which will be beneficial for the design of multi-functional materials.展开更多
基金support for this research by the National Natural Science Foundation of China(No.:21271043,21771038)the Qishan Scholars Program of Fuzhou University(No.:XQS-1403).
文摘By using squarates as coordination building units,six new complexes formulated as[Mg(C_(4)O_(4))(H_(2)O)_(2)]n(1),[Pr_(2)(C_(4)O_(4))_(2)(OA)(H_(2)O)_(4)]n(2),[Eu_(2)(C_(4)O_(4))3(H_(2)O)_(8)]n(3)[Cd_(2)(C_(4)O_(4))_(2)(bpdo)(H_(2)O)_(4)]n(4),[Cd(C_(4)HO_(4))_(2)(H_(2)O)_(4)]·(MV)_(2)·(C_(4)O_(4))_(2)(5),and[Cd(C_(4)HO_(4))_(2)(H_(2)O)_(4)]·(EV)·(C_(4)HO_(4))_(2)(6),where(C_(4)O_(4))_(2)-=squarate,OA=oxalic acid,MV=methyl viologen,EV=ethyl viologen,and bpdo=4,4’-dipyrdiyl-N,N’-dioxide,have been synthesized under hydro/solvothermal conditions.They present structural dimensions from 3-D networks(1,2),2-D layers(3,4)to 0-D clusters(5,6)based on the versatile bridged modes of squarates and the introduction of second ligands.In particular,5 and 6 are the first examples incorporating squarates(electronic-rich species)with viologens(electronic-poor species)in one lattice.Consequently,they exhibit not only photocurrent responses but also reversible thermochromism,which will be beneficial for the design of multi-functional materials.
