In-situ synthesis method and application of quinazolinone Schiff base dysprosium complex

• Main Authors: WU CUI'E, WANG KAI, TENG QINGHU, CHEN JIAHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; INDUCTANCES; MAGNETS; METALLURGY; ORGANIC CHEMISTRY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention discloses an in-situ synthesis method and application of a quinazolinone Schiff base dysprosium complex. The complex is prepared by taking N '-(3-ethyoxyl salicylidene)-2-(3-ethyoxyl salicylidene imine) benzoyl hydrazine and dysprosium nitrate as reaction raw materials through a low-temperature solvothermal method in a methanol solvent. In the reaction process, part of the initial ligand is converted into 3-(3-ethyoxyl salicyl imine) quinazolinone in situ. The initial ligand and the quinazolinone Schiff base ligand generated in situ jointly construct an unprecedented dysprosium-based five-core cluster structure formed by edge sharing of a {Dy4} tetrahedron unit and a {Dy3} triangular unit. In addition to zero, the complex shows obvious single-molecule magnet behavior characteristics, and has application potential in the field of novel molecule-based magnetic materials. 本发明公开了一种喹唑啉酮席夫碱镝配合物的原位合成方法与应用。该配合物以N′-(3-乙氧基亚水杨基)-2-(3-乙氧基水杨基亚胺)苯甲酰肼与硝酸镝作为反应原料，在甲醇溶剂中经低温溶剂热法而制备。反应过程中，部分初始配体原位转化成3-(3-乙氧基水杨基亚胺)喹