Novel axially substituted lanthanum phthalocyanines: Synthesis, photophysical and nonlinear optical properties

Tetra (C60) lanthanum phthalocyanine: design, synthesis and investigation of the third-order nonlinear optical properties

“…3(a), both the LaPc and tetra(C 60 )-LaPc spectra displayed characteristic absorption peaks in the UV region about 250-350 nm (B band) and the visible region about 650-750 nm (Q band), respectively. 11,29 The formation of these two bands is associated with p-p* transitions from the highest occupied molecular orbital to the lowest unoccupied molecular orbital. 32 Compared to LaPc, the shoulder peaks at 623 nm of tetra(C 60 )-LaPc became weaker or even disappeared, further illustrating that the larger p-conjugated electron system led to a reduction in aggregation phenomena.…”

“…9,10 An attractive feature of Pcs is that their central cavity can be coordinated with most metal ions, thus tuning their electronic structure. 11,12 Over the past few years, the fascinating physical and chemical properties of fullerenes have attracted tremendous attention from the wider scientific community, not only because of their highly symmetric structure and their ability to undergo multiple addition reactions but also due to their exceptional electron accepting characteristics. [13][14][15] As typical electron-acceptor, fullerene (C 60 ) has a large conjugate surface and excited state absorption properties, so their nonlinear optical properties are worth investigating.…”

Synthesis and Spectroscopic and Luminescent Properties of Er, Yb and Lu Complexes with Cyano-Substituted Phthalocyanine Ligands

“…Complexes of rare earth elements (REE) with phthalocyanine derivatives constitute a separate group of compounds due to the specificity of their properties, which is determined by the nature of the central metal atom used. Metal phthalocyaninates are characterized by intense light absorption in the visible region [1][2][3][4], which determines their use as dyes [5][6][7] and elements of optical devices [8,9], while lanthanide complexes, along with the above properties, also exhibit absorption and, accordingly, emission in the near-IR region [10,11]. This opens up prospects for the use of such compounds as optical limiting devices [12][13][14], luminescent films, and sensors [9].…”

Nonlinear Optical Stability of Polyphenylsulfone (PPSU)‐Containing Anthraquinones with High Transmittance

“…Recently, researchers have developed a variety of polymer film state nonlinear optical materials, including host–guest polymers, [ 12,13 ] conjugated polymers, [ 14,15 ] main‐chain polymers, and side‐chain polymers. [ 16,17 ] For example, Li et al.…”

“…Their results confirmed that the same phthalocyanine compounds exhibit much better nonlinear optical properties in the film state than in the solution. [ 12 ] Zafar et al. fabricated a nanocomposite film of 1,5‐diamino‐9,10‐anthraquinone in polymethyl methacrylate by the guest–host method and studied the NLO behavior using a Z ‐scan test.…”