Multi-spin magnetic coupling system synthesis, structure and magnetic properties

Title: Multi-spin magnetic coupling system synthesis, structure and magnetic properties
Author: Vogue
Degree-granting units: Inner Mongolia University
Keywords: Schiff base;; nitroxides;; rare earth complexes;; 3d-4f
Summary:


Polynuclear complexes of crystal engineering, the nature and function of coordination chemistry is currently the most active areas of the subject, this paper Schiff base ligands, designed and synthesized 12 new transition or rare earth complexes, Magnetic lifter determination of its crystal structure, magnetic and some of the compounds were characterized mainly as follows:


The first part of nitroxides as spin carriers, both in the solid state exhibit interesting magnetic properties, but also as a bridging ligand with transition metal ions efficiently assembled into inorganic. Organic hybrid magnetic materials, this paper focus on the characteristics of these nitroxides in nitroxide and its complexes of the structure, magnetic properties, has carried out research. Main work is as follows: synthesis of the nitroxide radical ligands NIToPy, and obtained a series of single-manganese structure for single-crystal structure analysis.


The second part, the use of Schiff-base ligand L synthesized a series of transition metal binuclear complexes, analysis of its crystal structure and magnetic properties were studied, magnetic measurements show that the dual role between all of the anti-ferromagnetic.


The third part of dysprosium synthesized discrete cubic core, its study of the structure, the compound has been slow magnetic relaxation effects. Further promote clusters of rare earth magnetic properties of different topology dynamics.


Part IV, has been a series of 3d-4f mixed quad-core material. By comparing the experimental study, the structure of the complex by many factors, http://www.999magnet.com/products/131-magnetic-lifter such as the structure and nature of the ligand, metal ion coordination needs and characteristics. Anion geometry and nature. By changing these factors, there may be different patterns of compound structure type.
Degree Year: 2010