Structures And Properties Of Complex Crystals And Nano-crystals Based On N-containing Heterocyclic Derivative Ligands

Transition metal complexes based on azolate derivative ligands have various novel structures and properties and display broad application prospects in the field of optical,magnetic and energetic functional materials and environment.In this paper,a series of transition metal complexes that have different morphological and structural characterization have been synthesized and their fluorescent,magnetic and energetic functional properties have been studied.Three chapters are included in the thesis:In chapter 1,the introduction introduces the current research progress of complexes based on tetrazole and triazole derivative ligands,and energetic materials of tetrazole derivative.The synthetic methods and application for nano energetic materials are also introduced.In chapter 2,three nitrogen-rich energetic nano-crystals based on 5,5'-azotetrazolate?AZT₂-?Cr???salts [Cr?H₂O?₆]₂?AZT?₃·6H₂O?1?,[Cr?OH??AZT??H₂O?₃]·2H₂O?2?and [Cr?OH??H₂O?₅]AZT·H₂O?3?were synthesized and characterized.The transformation from one nano-crystal to another nano-crystal was implemented by the in-situ synthesis method.The morphological and structural characterization for the nano-crystals of 1-3 have been studied by IR,Raman,EA,XPS,TG,DSC,SEM and TEM and the characterizing results show that the energetic nano-crystals feature a morphology-dependent thermal stability.The impact,friction,flame and electrostatic sensitivity were represented and compared.Moreover,the formation of nano-scale decomposition products above 500 ? are metallic oxide nano crystals,providing a new method for preparing transition metallic oxide nano materials.In chapter 3,two Co???and Cu???complexes {[Co?4-tzbc?₂?H₂O?2]×2H₂O}_n?4?,[Cu?4-tzbc?₂]_n?5?[H?4-tzbc?= 4-?1H-1,2,4-triazol-1ylmethyl?benzoic acid] and two Mn?II?complexes {[Mn?Hatp?2?H₂O?₄]×3H₂O}?6??H₂atp = 4-azotetrazolyl phenol?,{[Mn₂?atp?₂?H₂O?₆]}?7?have been synthesized and characterized by single-crystal X-ray diffraction analysis.The result reveals that complexes 4 and 5 form two different 1-D chain structures.Complex 6 is a mononuclear structure and 7 is a dinuclear structure.The supramolecular structures for 4-7 are discussed.The luminescent properties of 4 and 5 and magnetism of 7 were investigated and demonstrated.