Studies On Synthesis And Properties Of Gold Compounds Based On Aryl Isocyanide And Aliphatic Isocyanide

In the new century,"smart materials" has brought great changes in people’s life and production,which possesses important realistic meaning and excellent prospects in the future application.Vapochromism material is a kind of intelligent material which is rather sensitive to Volatile Organic Compounds(VOCs).This material can be widely used in some fields including chemical and biological sensors,optical information storage and processing,environmental monitoring and so on.Metal complexes have the properties of strong fluorescence and long luminescent life.Therefore,the study of vapochromism property is more and more aroused people’s wide attention.In 2001,the silicon miscellaneous cyclopentadiene(silole)derivatives in solution is little luminescence which was inadvertently discovered by the group of Ben-zhong Tang academician.However,the solid luminous intensity is greatly enhanced.Herein,this phenomenon is named "aggregation-induced emission(AIE)".This discovery laid a new research direction for solid luminescent material.In 2013,our group found that some gold compounds based on isocyanobenzene have obvious property of aggregation-induced emission(AIE).In order to further study the property of this kind of compounds,a series of gold compounds based on aryl isocyanide and aliphatic isocyanide are designed and synthesized in this dissertation research.A series of research is mainly concentrated on their response to vapochromism and aggregation-induced emission(AIE)property.For the design and synthesis of new metal organic compounds provided experimental basis and lay the foundation for vapochromism material.Details are described as follows:1.The complexes Ⅱ-1～Ⅱ-10 of a series of gold compounds based on phenyl isocyanide containing different substituent groups are designed and synthesized.As well as the complex Ⅱ-11 of gold compound based on isocyanoligand with triarylated amine as skeleton is synthesized.The complex Ⅱ-9 is confirmed by X-ray single crystal diffraction.A series of experimental research of complexes are studied the property of vapochromism and aggregation-induced emission(AIE)by ultraviolet absorption spectra and fluorescence emission spectra.The experiment results show that the complexes Ⅱ-1-Ⅱ-4,Ⅱ-7,Ⅱ-8 and Ⅱ-10 are exposed in VOCs that the luminescence changes obviously and show the properties of vapochromism.Meanwhile,the complexes Ⅱ-1～Ⅱ-4,Ⅱ-7～Ⅱ-11 also exhibit the property of aggregation-induced emission(AIE).2.The complexes Ⅲ-1～Ⅲ-2 of gold compounds based on aliphatic isocyanide are designed and synthesized.The complexes Ⅲ-3～Ⅲ-9 of gold compounds based on polycyclic aryl isocyanide are also designed and synthesized.The complexes Ⅲ-1,Ⅲ-2,Ⅲ-3,Ⅲ-5 and Ⅲ-9 are confirmed by X-ray single crystal diffraction.A series of experimental research of complexes are studied the property of vapochromism and aggregation-induced emission(AIE)by ultraviolet absorption spectra and fluorescence emission spectra.The experiment results show that the complexes Ⅲ-1～Ⅲ-2 are exposed in VOCs that the luminescence changes obviously and show the property of vapochromism.At the same time,the complexes Ⅲ-1,Ⅲ-2,Ⅲ-3,Ⅲ-5 and Ⅲ-9 also show the property of aggregation-induced emission(AIE).