Syntheses, Structures And Spectroscopic Characterization Of D～8, D～(10) Metal Complexes With P, N Ligands

Transition metal complexes have attracted most attention for their abundantphotophysical and photochemical properties, which exhibit great potentialapplications in material, sensor and biology fields. In this thesis, 8 P,N ligands withbothP(soft)andN(hard)donors,and22Cu(I),Ag(I),Au(I),Zn(II),Pt(II)andPd(II)complexes with these ligands, have been designed and synthesized. Their crystalstructures and photophysical properties in solid or solution state have beeninvestigated through single crystal X-ray diffraction analysis, UV-vis absorptionspectra,emissionandtime-resolvedspectra.Manyinterestingresultswereobtainedasfollowing.1. Two novel cyclometalated CNN-Pt(II) complexes with pyridine phosphorousligand and a new CNN-Pt(II) complexe with naphthyridine phosphorous ligandweresynthesized. The intramolecular photoinduced electron transfer (PET) wasinvestigated. Such a strategy would be of great interest in the design of new Pt(II)fluorescent chemosensors and development of new luminescent platinum(II)materials.2. Two novel cyclometalated CNN-Pt(II) complexes with 2-aminopyridinedi-phosphorous and 4-aminopyridine phosphorous ligands were synthesized. Therelationship between the structure and spectroscopic properties was clarified throughanalysisofthecrystalstructureandtheemissionspectrum.3.FiveCu(I),Ag(I)andAu(I)complexeswithnaphthyridinephosphorousligandwere synthesized, the Cu-Cu and Ag-Ag weak interactions were observed in thesecomplexes. The intramolecular hydrogen bond interactions were found in Au(I) complex. The relationship of the structure and spetroscopic properties was clarifiedthroughanalysisofthecrystalstructureandtheemissionspectrum.4. Some Cu(I), Zn(II), Pt(II), Pd(II) and Au(I) complexes with naphthyridinephosphorous ligand, pyrimidine phosphorous ligand and pyridine di-phosphorousligand were synthesized. Bimetallic twelve-membered ring structure, andone-dimensional polymeric chains were observed in the Pt(II), Pd(II) and Cu(I)complexes.5. The Pt(II) complex with thienyl phosphorous ligand was synthesized. A newcatalysis reaction with Au(III) complexes has been found, and the crystal structure oftheAu(III)complexwasdetermined.