Synthesis,Structure And Third-order Nonlinear Optical Properties Of Iridium Metal Organic Compounds

In recent years,the development of coordination compounds,especially metal organic compounds,has attracted people's attention,not only these complexes often have novel skeleton structures,but also for potential application value.For example,metal organic compounds containing metallic Iridium(Ir)and Ruthenium(Ru)have attracted much attention due to their outstanding optical properties.At present,the synthesis methods of functional complexes also tend to be diversified.One of the more important synthesis strategies is to synthesize molecular building blocks as precursors,and then to introduce metal centers and ligands to obtain the target product.In this paper,Ir(?)-containing dimer[Ir2(ppy)4]has been synthesized firstly as precursor,and then introduce tetrazine and porphyrin organic ligands respectively to coordinate.Finally,five kinds of metal with unique structure are obtained.and their third-order nonlinear absorption properties were studied.In addition,we also used[Cu(2,4-pydc)2]as the precursor,and coordinated with the lanthanide metals Tb3+ and Eu3+ to obtain two three-dimensional structures of heterobimetallic complexes.Lastly,their magnetic properties have been investigated.1.Five novel metal-organic compounds were obtained from the precursor of[Ir2(ppy)4]with organic-ligand three tetrazine ligands:pytz-Ph,pytz-PhMe,pytz-nb,and two porphyrin ligands:TPPyP?TEPyP).All crystals of these compounds have been characterized by many methods such as X-ray diffraction,thermogravimetric analysis,infrared spectra and elemental analysis.Three tetrazine crystals belong to monoclinic,orthorhombic,and triclinic.Two porphyrin crystals both belong to triclinic.In addition,the third-order nonlinear optical property of five compounds have also been discussed by Z-scan,third and seventh complexes exhibit excellent third-order nonlinear absorption properties[Ir(ppy)2](pytz-Ph)(PF6)(1)[Ir(ppy)2](pytz-MePh)(PF6)(2)[Ir(ppy)2](pytz-Nb)(PF6)(3)[Ir(Ppy)2](TPPyP)"3DCM(4)[Ir(ppy)2](TEPyP)-2DCM(5)2.We also obtained two heterobimetallic compounds based on the precursor of[Cu(2,4-pydc)2]and lanthanide ions Tb3+ and Eu3+.A series of characterization methods have been applied such as X-ray diffraction,thermogravimetric analysis,infrared spectra and elemental analysis.two heterobimetallic crystals both belong to triclinic.And we have also investigated their magnetocaloric property between 1.8K and 300K.Both heterobimetallic crystals exhibit antiferromagnetic properties.{Tb2LCu3·4DMSO}n(6){Eu2LCu3·5DMSO·2MeOH}n(7)...