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The Synthesis of Dimeric ReI-Phenylenediimine Conjugates: Spectroscopic and Electrochemical Studies.
- Source :
- European Journal of Inorganic Chemistry; Jun2014, Vol. 2014 Issue 16, p2643-2652, 10p
- Publication Year :
- 2014
-
Abstract
- A series of dimeric Re<superscript>I</superscript>(CO)<subscript>3</subscript> compounds have been prepared by means of a one-pot reaction of [Re(CO)<subscript>5</subscript>X] (X = Cl, Br), pyridine-2-carboxyaldehyde, and o-, m-, or p-phenylenediamine. For the m- and p-substituted phenylenediamine reactions, phenyl-bridged bis(pyridine-2-carbaldimine) compounds of the formula [Re(CO)<subscript>3</subscript>X]<subscript>2</subscript>(μ-PPC) [ 3- 7; X = Cl, Br; μ-PPC = m- or p-phenylene bis(pyridine-2-carbaldimine)] were produced, with m-phenylenediamine forming a mixture of isomers. For reactions with o-phenylenediamine, multiple products formed (compounds 8- 11), which ranged from the desired o-phenylene bis(pyridine-2-carbaldimine) adduct to 2-pyridylbenzimidazole and bridging dipyridinylquinoxaline complexes. An example of each complex was structurally elucidated by single-crystal X-ray methods. The dimeric m- and p-phenylene-bridged Re(CO)<subscript>3</subscript>X compounds, including a sulfonate derivative designed to improve solubility, were investigated for possible photophysical applications through the use of UV/Vis spectroscopy and cyclic voltammetry; the study revealed coupling between the rhenium centers. [ABSTRACT FROM AUTHOR]
- Subjects :
- DIMERIC ions
RHENIUM
BRIDGING ligands
SPECTROMETRY
VOLTAMMETRY
Subjects
Details
- Language :
- English
- ISSN :
- 14341948
- Volume :
- 2014
- Issue :
- 16
- Database :
- Complementary Index
- Journal :
- European Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 96210423
- Full Text :
- https://doi.org/10.1002/ejic.201400076