Synthesis, characterization, luminescence and nonlinear optical (NLO) properties of truxene-containing platinum(II) alkynyl complexes

Chan, Carmen K. M.; Tao, Chi Hang; Li, King Fai; Wong, Keith Man‐Chung; Zhu, Nianyong; Cheah, Kok Wai; Yam, Vww

doi:10.1016/j.jorganchem.2010.09.044

Cited by 32 publications

(11 citation statements)

References 108 publications

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“…The use of tetrahydrocurcumin as an ancillary ligand (complex Ir2) affords a similar second-order NLO response (µβ 1.907 = −930 × 10 −48 esu; µβ 0 = −661 × 10 −48 esu by using Equation (2) and λ max = 470 nm [54]). This is a significant result, because compounds showing both luminescent and nonlinear optical properties are of growing interest as multifunctional molecular materials for optoelectronics [68][69][70][71][72][73][74][75][76][77].…”

Section: Resultsmentioning

confidence: 99%

Cyclometalated Ir(III) Complexes with Curcuminoid Ligands as Active Second-Order NLO Chromophores and Building Blocks for SHG Polymeric Films

et al. 2020

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The second-order nonlinear optical (NLO) properties of iridium(III) complexes having two cyclometalated 2-phenylpyridines and curcumin or tetrahydrocurcumin as ancillary ligand have been investigated both in solution and as guest in a polymeric organic matrix. In solution, these complexes are characterized by a significant second-order NLO response, as determined by the Electric Field Induced Second Harmonic (EFISH) technique, like the related complex with acetylacetonate. Whereas the low second-harmonic generation response of a composite film of [Ir(2-phenylpyridine)2(acetylacetonate)] in polymethyl methacrylate was not stable and fell down to zero upon turning off the electric field. A good and stable response was obtained with a film based on the iridium(III) complex bearing two cyclometalated 2-phenylpyridines and curcumin.

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Section: Resultsmentioning

confidence: 99%

Cyclometalated Ir(III) Complexes with Curcuminoid Ligands as Active Second-Order NLO Chromophores and Building Blocks for SHG Polymeric Films

et al. 2020

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“…Also, metals serve as perfect templates to construct three-dimensional structures, affording dipolar and octupolar molecules [10,19]. In this panorama, coordination compounds showing both luminescent and NLO properties are particularly appealing as new multifunctional molecular materials [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

A Chiral Bis(salicylaldiminato)zinc(II) Complex with Second-Order Nonlinear Optical and Luminescent Properties in Solution

et al. 2020

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Whereas there is an increasing amount of reports on the second-order nonlinear optical (NLO) and luminescence properties of tetradentate [N2O2] Schiff base–zinc complexes, the study of zinc complexes having two bidentate [NO] Schiff-base ligands is relatively unexplored from an NLO point of view. This work puts in evidence that the known chiral bis{2-[(R)-(+)-1-phenylethyliminomethyl]phenolato-N,O}zinc(II) complex is a fascinating multifunctional molecular inorganic–organic hybrid material characterized by interesting second-order NLO and luminescent properties in solution. The emissive properties of the organic 2-(R)-(+)-1-phenylethyliminomethyl]phenol proligand are greatly enhanced upon coordination to the inorganic Zn(II) center.

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“…The trans -bisethynylbis(trialkylphosphine)platinum(II) building block, [Pt] , is a versatile unit for the design of photonic materials showing potential applications in nonlinear optics − and light-emitting diodes. − In the field of solar cells, the [Pt] -containing materials are also active irrespective of whether they are used as molecules or within polymer chains. , Indeed, dye-sensitized solar cells − and bulk heterojunction solar cells (BHJSCs) − were designed. To the best of our knowledge, the highest photoconversion efficiency (PCE) was recently reported to be 5.29% for a BHJSC containing the [Pt] moiety. , Concurrently, studies on complexes bearing [Pt] units indicated that the charge separated states are formed in the short picosecond (ps) time scale − and that the [Pt] unit could mediate the electron transfer. − Over the years, it was suggested that anchoring diphenylamine pendants as electron-rich groups , and using the electron-deficient anthraquinone, AQ , moiety , should improve the PCEs of [Pt] -containing materials for solar cells.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast Photoinduced Electron Transfers in Platinum(II)-Anthraquinone Diimine Polymer/PCBM Films

Juvenal

Schlachter

et al. 2019

J. Phys. Chem. C

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Two fluorescent polymers ([Pt]-(AQI(BM-PA) x )) n ([Pt] = trans-bis(ethynylbenzene)-bis-(tributylphosphine)platinum(II); AQI = anthraquinone diimine; BMPA = bis(para-methoxyphenyl)amine), P1 (x = 1; τ F ≤ 8 ps) and P2 (x = 2; τ F = 10 ps, 298 K), were prepared and investigated as thin films in the presence of phenyl-C 61butyric acid methyl ester (PCBM) to probe the photoinduced electron transfer processes using steady-state and timeresolved fluorescence and femtosecond-transient absorption spectroscopy (fs-TAS). P1 and P2 undergo an efficient oxidative photoinduced electron transfer (Px* + PCBM → Px +• + PCBM −• ; x = 1, 2) in solution and as films. Based on fs-TAS, the time scale for the photogenerated charge separated state forms within the excitation pulse (i.e., ≤150 fs). During the course of this study, the nature of the lowest energy emissive excited state was identified as a charge transfer state defined as [Pt] → AQI (major component) and BMPA → AQI (minor component) with the aid of density functional theory (DFT) and time-dependent DFT computations.

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Synthesis, characterization, luminescence and nonlinear optical (NLO) properties of truxene-containing platinum(II) alkynyl complexes

Cited by 32 publications

References 108 publications

Cyclometalated Ir(III) Complexes with Curcuminoid Ligands as Active Second-Order NLO Chromophores and Building Blocks for SHG Polymeric Films

Cyclometalated Ir(III) Complexes with Curcuminoid Ligands as Active Second-Order NLO Chromophores and Building Blocks for SHG Polymeric Films

A Chiral Bis(salicylaldiminato)zinc(II) Complex with Second-Order Nonlinear Optical and Luminescent Properties in Solution

Ultrafast Photoinduced Electron Transfers in Platinum(II)-Anthraquinone Diimine Polymer/PCBM Films

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