In recent years, the rare earth complexes M (β-diketone) have become important laser materials and NMR chemical shift reagents. However, only a few complexes of (TTA)4 MQH have been studied. Therefore, 13 rare ea...In recent years, the rare earth complexes M (β-diketone) have become important laser materials and NMR chemical shift reagents. However, only a few complexes of (TTA)4 MQH have been studied. Therefore, 13 rare earth com-展开更多
文摘In recent years, the rare earth complexes M (β-diketone) have become important laser materials and NMR chemical shift reagents. However, only a few complexes of (TTA)4 MQH have been studied. Therefore, 13 rare earth com-