and easy-axis (Ising type) magnetic anisotropies for 1 and 2, respectively. Highly efficient luminescences with Φ = 0.50 and 0.61 for 1 and 2, respectively, were observed, and the luminescence fine structure due to the 5D4 → 7F6 transition is in good accordance with the energy diagram determined from magnetic analysis. The energy diagram of 1 shows an approximate single-well potential curve, whereas that
两个具有相同N 6 O 3供体原子但配位几何结构不同的Tb III络合物,“ fac ”-[Tb III(HL dl -ala)3 ]·7H 2 O(1)和“ mer ”-[Tb III(HL)合成了dl -phe)3 ]·7H 2 O(2),其中H 2 L dl -ala和H 2 L dl -phe是N -[(
咪唑-4-基)亚甲基] -dl-丙
氨酸和-d1-苯丙
氨酸。每个Tb III离子均由三个电子单负NNO三齿
配体配位,以形成三重三角棱镜的配位几何形状。化合物1由对映异构体“ fac ”-[Tb III(HL d -ala)3 ]和“ fac ”-[Tb III(HL 1- al)3 ]组成,而化合物2由“ mer ”-[Tb III(HL d)(HL )组成d -phe)2(HL l- phe)]和“mer ”-[Tb III(HL d -phe)(HL l -phe)2 ]。通过自旋哈密顿量分析了磁数据,包括对Tb