A triphenylamine-based Pt(ii) metallacage via coordination-driven self-assembly for nonlinear optical power limiting

Abstract

The past several decades have witnessed the rapid development of high-intensity and ultrashort pulse lasers, and the risk of accidental damage to optical detection systems rises commensurately. Thus, various optical...

Near-infrared metal agents assisting precision medicine: from strategic design to bioimaging and therapeutic applications

“…Metalamides had higher multiphoton excited photoluminescence (MEPL) compared to organic ligands due to the π-extension and stiffening effects of aromatics increased by coordination in metalamides. 244 Similarly, Su et al combined eight Ir( iii )-based photosensitizers and four Pd-based acceptors in a highly ordered cubic metallacage 85 . Metallacage 85 demonstrated adequate water solubility, increased efficiency of 1 O 2 production following laser irradiation, favorable cellular uptake, and specific mitochondrial targeting ability, resulting in effective cell death in cancer cells.…”

A Dual-Purpose Ce(III)–Organic Framework with Amine Groups and Open Metal Sites: Third-Order Nonlinear Optical Activity and Catalytic CO2 Fixation

“…66 One of the main features of MOFs, contributing to the NLO responses, is the presence of voids in their structure. 67 As shown by Zhang et al, structure and topology of MOFs can directly affect their nonlinear optical characteristics. 68 The NLO features of MOFs can be enhanced by amine functional groups and delocalized π systems throughout the MOFs synthesis.…”

“…In fact, NH 2 -Ce-MUM-2 can have promising application for NLO given the establishment of a structure with dπ–pπ delocalized and conjugated mechanisms. It is possible to extend the π-conjugated length by metal ions as an effective procedure aimed at increasing the values for the molecular NLO susceptibility . Hence, the NLO characteristics are improved through metal-to-ligand and ligand-to-metal charge transfer states .…”

“…It is possible to extend the π-conjugated length by metal ions as an effective procedure aimed at increasing the values for the molecular NLO susceptibility. 67 Hence, the NLO characteristics are improved through metal-to-ligand and ligand-tometal charge transfer states. 70 New charge transfer conditions and polarization in the ligand electron density take place when electrons push or pull metal centers, resulting in higher NLO responses compared to the case of uncoordinated ligands.…”

“…Nonlinear optical characteristics of compounds can be strengthened through electron transfers and π-electron delocalization systems within their configuration . One of the main features of MOFs, contributing to the NLO responses, is the presence of voids in their structure . As shown by Zhang et al, structure and topology of MOFs can directly affect their nonlinear optical characteristics .…”