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Anthracene functionalized terpyridines - synthesis and properties.

Falk Wehmeier¹, Jochen Mattay

¹Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, D-12489 Berlin, Germany.

Beilstein Journal of Organic Chemistry

|July 14, 2010

Summary

Researchers synthesized novel functionalized terpyridines and their iron(II) complexes. Photochemical studies investigated the behavior of these compounds, revealing insights into their light-induced properties.

Keywords:

anthracene coordination chemistry photochemistry terpyridine

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Area of Science:

Coordination Chemistry
Supramolecular Chemistry
Photochemistry

Background:

Terpyridines are versatile ligands in coordination chemistry.
Functionalized terpyridines are crucial for developing advanced materials.
Iron(II) complexes with terpyridine ligands exhibit interesting photophysical properties.

Purpose of the Study:

To synthesize novel symmetrically 4,4''-functionalized 2,2':6',2''-terpyridines.
To prepare iron(II)-bis(terpyridine) complexes using synthesized ligands.
To investigate the photochemistry of the free ligands and their iron(II) complexes.

Main Methods:

Organic synthesis of terpyridine derivatives, including biscarboxylic acid and anthryl esters.
Complexation reactions with iron(II) salts.
Photochemical irradiation experiments on ligands and complexes.

Main Results:

Successful synthesis of biscarboxylic acid 4,4''-tpy(CO₂H)₂ (3) and anthryl esters 4,4''-tpy(CO₂CH₂Anth)₂ (5a) and 4,4''-tpy(CO₂CH₂CH₂OAnth)₂ (5b).
Formation of symmetric iron(II)-bis(terpyridine) complexes 6a-b.
Initial photochemical investigations on the synthesized compounds.

Conclusions:

The study reports the synthesis of new functionalized terpyridines and their iron(II) complexes.
The synthesized compounds serve as platforms for further photochemical investigations.
This work contributes to the understanding of terpyridine-based photochemistry.