Self-assembly And Controlled Assembly Of Functional Coordination Complexes And Molecular Architectures Based On N-and O-containing Ligands

The development of reliable methods for the prediction of crystal structure and the rational synthesis of functional coordination complexes remains an elusive scientific challenge, its relevance to aspects of pharmaceutical and materials science has fueled rapid development of the concept of crystal engineering. The aim of this work is to investigate how to control the structures and the properties of the desired M(I or II) transition-metal functional coordination compounds and the molecular architectures. Furthermore, the deeper discussions on the relation of structures and properties are described. The thesis is divided into six chapters.In the first chapter, the current survey on the crystal engineering, as well as coordination complexes and molecular architectures, is concisely introduced.In the second chapter, the investigations on the relations between the molecular architecture and structures of the Cp-"spacers" group and other relative factors, which the system has a comprehensive reaction between itself and different metals to form a series of different molecular architecture by designing and synthesising a special double Cp-"arms" 3-BPFA and controlling the both "arms" have been outlined, and those investigations help us to go into study the assemble of similar double "arms" molecular, deeply.In the third chapter, self-assemble of the ligand dcphcz with Ag(I) salts containing different anions, has been investigated. When the ligand is fixed, the templating effect of the anions on the ultima assemble structure was investigatedIn the fourth chapter, the bent ligand tppda with more coordination points and good luminescence properties was designed and systhesised, to coordinate with different metal ions to construct a series of different molecular architectures. The discussion on the possibility to control the structure of whole molecule through the ligand has been described.In the fifth chapter, on the basis of dpa as a coordination unit, we design three organic ligands and make them assemble with Ag(I) ions. Through intermolecular C-H…O interaction, we have achieved the change from 1D to 3D networks with the open channel. Some rare helix architecture has been made by using a liner ligand.In the sixth chapter, a briefly conclusion on this work and an outlook to the further study have been involved.