Porphyrin based ruthenium alkynyl complexes as nonlinear optical materials

Abstract

Introduction to nonlinear optics will be present in a general prospective. The phenomenon of NLO like SHG, TPA, MPA and Optical limiting will be discussed in prospective of mathematic and application. Measurements of NLO will be discussed following the content related will be focused on NLO medium, they will be categorized to different classifications in two ways: frequency-doubling crystals, TPA probe, Optical limiter etc. according to their application; inorganic materials, organic chromophores, and organometallic/coordination complexes with respect to molecular construction of the NLO medium. At last, the work of our group at metal-alkynyl complexes in NLO will be summarized based on the sequence of dipole molecules, octupole/cruciform molecules, branched molecules, hybrid materials, molecular switch. At the last part of chapter one, porphyrin used as NLO-active materials will be summarized 1. Chapter 2 focuses on the synthesis and opto-electronic studies of donor/acceptor-functionalized porphyrin-bridged ruthenium alkynyl complexes with p-nitrophenyl acceptors. In order to determine the most promising molecules, chromophore composition was altered at the donor-site and linkage type. 2. Chapter 3 focuses on the synthesis and opto-electronic studies ofdonor/acceptor-functionalized porphyrin-bridged ruthenium alkynyl complexes with tricyanovinyl acceptors. In order to determine the most promising molecules, chromophore composition was altered at the acceptor-site and linkage type. 3. Chapter 4 focuses on the synthesis and opto-electronic studies of D2h/C2v porphyrin-based ruthenium alkynyl complexes. In order to determine the most promising molecules, chromophore composition was altered at cavities: free-base or nickel(II), substitution longevity: aryleneethynylene or alkyne, and substitute pattern: mono, bis, or tetra. Key words: Nonlinear optical materials; Porphyrins; Ru alkynyl complexes