Peripherally tetra-palladated phthalocyanines

H. Yasemin Yenilmez; Ali Ihsan Okur; Ahmet Gül

doi:10.1016/j.jorganchem.2006.10.044

Peripherally tetra-palladated phthalocyanines

H. Yasemin Yenilmez, Ali Ihsan Okur, Ahmet Gül^*

^*Corresponding author for this work

Department of Chemistry

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

Phthalocyanines (M = Co, Zn or 2H) with four ({4-[(Z or E)-phenylazo]-1-naphthyl}oxy) substituents on the periphery have been synthesized to enlarge the absorbing range of the dyestuffs. Cyclopalladation of the azobenzene groups lead to network-type oligomeric products by formation of binuclear palladium (II) complexes and they have been further converted into monomeric species by treatment with acetylacetonate. The electronic spectra clearly indicate the absorptions resulting from phenylazo and naphthyl groups along with the Q and B bands of the phthalocyanines. The consequence of the palladation is a relatively intense broad absorption due to LMCT with maxima around 520 nm.

Original language	English
Pages (from-to)	940-945
Number of pages	6
Journal	Journal of Organometallic Chemistry
Volume	692
Issue number	5
DOIs	https://doi.org/10.1016/j.jorganchem.2006.10.044
Publication status	Published - 1 Feb 2007

Funding

This work was supported by the Research Fund of the Technical University of Istanbul and State Planning Organization (DPT). A.G. is grateful to Alexander von Humboldt Foundation for a senior scientist award renewed in 2006 for studies in the laboratory of Professor Markus Albrecht, Institute of Organic Chemistry, RWTH-Aachen, Aachen, Germany.

Funders	Funder number
DPT
Technical University of Istanbul and State Planning Organization

Keywords

1-Naphthol
Azobenzene
Cyclopalladation
Phthalocyanine

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10.1016/j.jorganchem.2006.10.044

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title = "Peripherally tetra-palladated phthalocyanines",

abstract = "Phthalocyanines (M = Co, Zn or 2H) with four ({4-[(Z or E)-phenylazo]-1-naphthyl}oxy) substituents on the periphery have been synthesized to enlarge the absorbing range of the dyestuffs. Cyclopalladation of the azobenzene groups lead to network-type oligomeric products by formation of binuclear palladium (II) complexes and they have been further converted into monomeric species by treatment with acetylacetonate. The electronic spectra clearly indicate the absorptions resulting from phenylazo and naphthyl groups along with the Q and B bands of the phthalocyanines. The consequence of the palladation is a relatively intense broad absorption due to LMCT with maxima around 520 nm.",

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AU - Yasemin Yenilmez, H.

AU - Okur, Ali Ihsan

AU - Gül, Ahmet

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N2 - Phthalocyanines (M = Co, Zn or 2H) with four ({4-[(Z or E)-phenylazo]-1-naphthyl}oxy) substituents on the periphery have been synthesized to enlarge the absorbing range of the dyestuffs. Cyclopalladation of the azobenzene groups lead to network-type oligomeric products by formation of binuclear palladium (II) complexes and they have been further converted into monomeric species by treatment with acetylacetonate. The electronic spectra clearly indicate the absorptions resulting from phenylazo and naphthyl groups along with the Q and B bands of the phthalocyanines. The consequence of the palladation is a relatively intense broad absorption due to LMCT with maxima around 520 nm.

AB - Phthalocyanines (M = Co, Zn or 2H) with four ({4-[(Z or E)-phenylazo]-1-naphthyl}oxy) substituents on the periphery have been synthesized to enlarge the absorbing range of the dyestuffs. Cyclopalladation of the azobenzene groups lead to network-type oligomeric products by formation of binuclear palladium (II) complexes and they have been further converted into monomeric species by treatment with acetylacetonate. The electronic spectra clearly indicate the absorptions resulting from phenylazo and naphthyl groups along with the Q and B bands of the phthalocyanines. The consequence of the palladation is a relatively intense broad absorption due to LMCT with maxima around 520 nm.

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Peripherally tetra-palladated phthalocyanines

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