Using 1,1-bis(isoquinoline)-1,4-phenyldimethylenyl(BIQPM^(2+))cation as template,a new tetrameric(Bi_(4)I_(16))^(4-)-iodobismuthate-containing hybrid with formula of(BIQPM)_(2)(Bi_(4)I_(16)·H_(2)O(1),has been pre...Using 1,1-bis(isoquinoline)-1,4-phenyldimethylenyl(BIQPM^(2+))cation as template,a new tetrameric(Bi_(4)I_(16))^(4-)-iodobismuthate-containing hybrid with formula of(BIQPM)_(2)(Bi_(4)I_(16)·H_(2)O(1),has been prepared under solvothermal conditions.The centrosymmetric (Bi_(4)I_(16))^(4- ) tetraanion is constructed from four edge-shared slightly distorted BiI6 octahedrons.Due to the presence of larger conjugated system(isoquinoline ring),strongπ···πstacking interactions can be observed.Besides,strong I···I interactions can be monitored and extends the 0-D (Bi_(4)I_(16))^(4- )cluster to a quasi-1-D chain.The smaller energy gap of 2.13 eV is led by these non-covalent interactions.Its infrared emission might be caused by strong charge transfer between anions and cations.Furthermore,the reversible thermochromic behavior with low chromotropic temperature of 80℃can be observed,whose mechanism was discussed.展开更多
基金financially supported by the Teaching Quality Project of West Anhui Health Vocational College(YJZLGC201713)
文摘Using 1,1-bis(isoquinoline)-1,4-phenyldimethylenyl(BIQPM^(2+))cation as template,a new tetrameric(Bi_(4)I_(16))^(4-)-iodobismuthate-containing hybrid with formula of(BIQPM)_(2)(Bi_(4)I_(16)·H_(2)O(1),has been prepared under solvothermal conditions.The centrosymmetric (Bi_(4)I_(16))^(4- ) tetraanion is constructed from four edge-shared slightly distorted BiI6 octahedrons.Due to the presence of larger conjugated system(isoquinoline ring),strongπ···πstacking interactions can be observed.Besides,strong I···I interactions can be monitored and extends the 0-D (Bi_(4)I_(16))^(4- )cluster to a quasi-1-D chain.The smaller energy gap of 2.13 eV is led by these non-covalent interactions.Its infrared emission might be caused by strong charge transfer between anions and cations.Furthermore,the reversible thermochromic behavior with low chromotropic temperature of 80℃can be observed,whose mechanism was discussed.
