Synthesis and Optical Properties of Regioisomerically Pure Alkynyl‐Bridged Bis(phthalocyanines)

García-Frutos, Eva M.; Torre, Gema de la; Vázquez, Purificación; Shirk, James S.; Torres, Tomás

doi:10.1002/ejoc.200900147

Cited by 10 publications

(10 citation statements)

References 82 publications

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“…Several single-crystal X-ray structures have been reported. 63,92,176,185,194,203,204,207,[209][210][211]237,240,260,262,321,330,334,335,[337][338][339]360,392,402 Work by Barrett and Hoffman 203,204,207,[209][210][211]334,335,[337][338][339]392 on Pz compounds has been particularly prominent in this regard, in recent years. There has been a growing focus on excited state properties over the past decade.…”

Section: Other Characterization Methodsmentioning

confidence: 99%

Low Symmetry Phthalocyanines and Their Analogues

2010

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Section: Other Characterization Methodsmentioning

confidence: 99%

Low Symmetry Phthalocyanines and Their Analogues

2010

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“…The OL effect at 532 nm generated by the peripherally bridged dimeric species ( t -Bu) 3 PcMX( t -Bu) 3 PcM with X = alkynyl (−CC−), and M = Co, Zn ( 687a – c , Chart ), has been also studied. , The species 687a displayed the highest merit factor among the various peripherally alkynyl bridged Pc dimers σ exc /σ 0 = 11. Moreover, the comparison between the OL performance of 687a and its starting monomer demonstrated that the dimerization leads to molecular systems with a larger merit factor.…”

Section: Phthalocyanines and Related Macrocyclesmentioning

confidence: 99%

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

2016

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The control of luminous radiation has extremely important implications for modern and future technologies as well as in medicine. In this Review, we detail chemical structures and their relevant photophysical features for various groups of materials, including organic dyes such as metalloporphyrins and metallophthalocyanines (and derivatives), other common organic materials, mixed metal complexes and clusters, fullerenes, dendrimeric nanocomposites, polymeric materials (organic and/or inorganic), inorganic semiconductors, and other nanoscopic materials, utilized or potentially useful for the realization of devices able to filter in a smart way an external radiation. The concept of smart is referred to the characteristic of those materials that are capable to filter the radiation in a dynamic way without the need of an ancillary system for the activation of the required transmission change. In particular, this Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting. All known mechanisms of optical limiting have been analyzed and discussed for the different types of materials.

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“…On the same line, Pb II Pc dimers 67 were synthesized in the search for materials with enhanced optical‐limiting characteristics that exhibited a decrease in transmittance upon an increase in the incident light intensity 65. Considering that heavy‐metal atoms in the central cavity of a Pc usually contribute to an increase in the population of the triplet state via intersystem crossing, leading to improved OL properties, the synthesis of Pb II Pcs was targeted.…”

Section: Synthetic Examples Of Advanced Pc‐based Architecturesmentioning

confidence: 99%

Modern Synthetic Tools Toward the Preparation of Sophisticated Phthalocyanine‐Based Photoactive Systems

Ragoussi

Torres

2014

Chemistry An Asian Journal

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Phthalocyanines are ideal components in a variety of electronic applications due to their extraordinary photophysical characteristics combined with their synthetic versatility and robustness. They have attracted substantial attention in recent decades and are now established building blocks of sophisticated molecular materials. Synthetically, a great deal of this progress is attributed to the use of modern synthetic tools, which gave rise to phthalocyanine-based systems that could not have been envisaged in the past. In particular, Pd-catalyzed cross-coupling reactions, together with other transition-metal-catalyzed procedures, "click" chemistry, and ruthenium metathesis have been employed extensively en route to an abundant range of elaborate phthalocyanine mono- and multicomponent photoactive architectures. Herein, we describe the synthesis of a selection of key examples that are representative in certain optoelectronic applications.

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Synthesis and Optical Properties of Regioisomerically Pure Alkynyl‐Bridged Bis(phthalocyanines)

Abstract: PbII ethynyl-and butadiynyl-bridged bis(phthalocyaninates) 1a-d, peripherally functionalized with n-butoxy moieties, have been synthesized by using Pd-catalyzed cross-coupling methodologies. Preliminary open-aperture Z-scan experiments with nanosecond pulses at 550 nm on solutions of Pb II

Cited by 10 publications

References 82 publications

Low Symmetry Phthalocyanines and Their Analogues

Low Symmetry Phthalocyanines and Their Analogues

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

Modern Synthetic Tools Toward the Preparation of Sophisticated Phthalocyanine‐Based Photoactive Systems

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