Work

The synthesis and pH-dependent behaviour of Re(CO)3 conjugates with diimine phenolic ligands

Year: 2013

Type: article

Abstract: In this report we present a study of a series of Re(CO)3 pyridine-imine complexes with pendant phenol groups. We investigated the effects of the position of the phenol hydroxyl group (para, meta or ortho to the imine) on the steric and electronic characteristics of a series of Re(CO)3X(pyca-C6H4OH) compounds, where X = Cl, Br and pyca = pyridine-2-carbaldehyde imine. These compounds can be generated either via ligand synthesis followed by metal chelation (compound 4) or via a one-pot method (compounds 2, 3, 5 and 6). All six compounds show striking differences in pH-dependent UV-visible absorption based on the position of the phenol hydroxyl group.

Source: Dalton Transactions

DOI: 10.1039/c3dt50894c

Authors: Kullapa Chanawanno, James T. Engle, Kevin X. Le, Richard S. Herrick, Christopher J. Ziegler

Institutions: University of Akron, College of the Holy Cross

Language: English

Topic: Inorganic and Organometallic Chemistry

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, University of Akron, National Institute of General Medical Sciences

Awards: The synthesis and screening of rhenium carbonyl compounds as technetium models, Synthesis and Screening of Peptide and Protein Based Rhenium Carbonyl Compounds a