Comparative Study Of Two Kinds Of ?₃⁴ Ligands And Metal Compounds ?Sn,Cu,and Zr?

As we all know,organometallic compounds consists of metal centre and ligand.Innumerous chemists all over the world are devoting themselves to seeking or modifying the ligands to change the properties of complexes,in order to find the better organometallic compounds and its application to serve people.Amidinate and azaallyl ligands are of ?34 system and have found a wide application as ancillary ligands for main group elements,transition metals,lanthanides and actinides.The potential applications of these complexes are still uncovered.Design suitable amdinometal complexes and azaallylmetal compounds still has a long way to go.The reasearch work of this dissertation focuses on two isoelectronic ligands,the two ligands are exactly the same except one atom end of the frame.Some compounds were synthesized based of the ligands,then compared some of them.The synthesis content mainly includes ligands and metal complexes which derived from complexation of amidine,silyl linked-bis(amidine)and silyl linked-bis(azaallyl)complexes with metals.All complexes were supported by X-ray diffraction crystallography and spectroscopic analysis.Chapter 1.A background introduction for the work of this thesis.It mainly includes the properties,coordination and method of synthesis about amidines and azzallycomplexes,then the developing and the simply introduction of their application.Chapter 2 The amidinate derived from aliphatic amine try to react with diphenylphosphinyl chloride to adjust the structures of ligand.The results then combine with metal reagents.The amidinates?hydrochlorides and metallic compounds syntheticed by cyclohexylamine supported with X-ray diffraction crystallography and spectroscopic analysis.(Scheme 1)Chapter 3.A serise of novel isoelectronic ligands was achieved.It includes the unusual ligands achieved from diphenylphosphinyl chloride and azaallyl complexes and their condesation prodution,the attempt of synthesis of bissilyl linked-bis(amidinate)ligands obtained from silyl linked-bis(amidinate)ligands,the composition of new silyl linked-bis(azaallyl)complexes ligands and the coupling production of azaallyl complexes and the characterization about their crystal structures.(Scheme 2).Chapter 4.The production of silyl linked-bis(amidinate)ligands and silyl linked-bis(azaallyl)complexes ligands achieved from 2,6-dimethylaniline,react further to achieve organometallic compounds.And they were characterized by X-ray diffraction crystallography and spectroscopic analysis.(Scheme 3)Chapte 5.The reaction of isoelectronic silyl linked-bis(amidinate)ligands or silyl linked-(azaallyl)complexes ligands and halogen and the comparison of the structure of the ligands was made.All the crystals were characterized.