Synthesis and Cyclic Voltammetry Studies of Copper Complexes of Bromo- and Alkoxyphenyl-Substituted Derivatives of Tris(2-pyridylmethyl)amine: Influence of Cation - Alkoxy Interactions on Copper Redox Potentials

Chang Lin Chuang, Osvaldo Dos Santos, Xiaodong Xu, James Canary

Research output: Contribution to journalArticle

Abstract

A combination of host - guest chemistry and coordination chemistry in the design of electrochemical sensors for alkali metal and ammonium ions is described. The sensor molecules are coordination complexes between a copper ion and a functionalized tripodal ligand. Upon presentation of the ion to the sensor molecule, a shift in the redox potential of the copper ion occurs. In the course of the study, three new alkoxyphenyl-substituted derivatives of the ligand tris(2-pyridylmethyl)amine (TPA) were prepared and characterized. The synthesis of the new ligands involved the preparation of bromopyridyl - TPA derivatives followed by Suzuki coupling with substituted phenylboronic acids. Cyclic voltammetry studies of copper complexes of the ligands indicated that steric effects played a dominant role in the overall determination of the copper redox couple. Studies of the alkoxyphenyl ligands indicated that small but reproducible changes in the copper redox couple occurred upon presentation of a guest cation that would be expected to form a complex with the copper - ligand complex.

Original languageEnglish (US)
Pages (from-to)1967-1972
Number of pages6
JournalInorganic Chemistry
Volume36
Issue number9
StatePublished - Apr 23 1997

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Cyclic voltammetry
Cations
Copper
amines
Ligands
Derivatives
cations
copper
ligands
synthesis
Ions
interactions
sensors
ions
chemistry
Alkali Metals
Electrochemical sensors
Molecules
Coordination Complexes
Sensors

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

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title = "Synthesis and Cyclic Voltammetry Studies of Copper Complexes of Bromo- and Alkoxyphenyl-Substituted Derivatives of Tris(2-pyridylmethyl)amine: Influence of Cation - Alkoxy Interactions on Copper Redox Potentials",
abstract = "A combination of host - guest chemistry and coordination chemistry in the design of electrochemical sensors for alkali metal and ammonium ions is described. The sensor molecules are coordination complexes between a copper ion and a functionalized tripodal ligand. Upon presentation of the ion to the sensor molecule, a shift in the redox potential of the copper ion occurs. In the course of the study, three new alkoxyphenyl-substituted derivatives of the ligand tris(2-pyridylmethyl)amine (TPA) were prepared and characterized. The synthesis of the new ligands involved the preparation of bromopyridyl - TPA derivatives followed by Suzuki coupling with substituted phenylboronic acids. Cyclic voltammetry studies of copper complexes of the ligands indicated that steric effects played a dominant role in the overall determination of the copper redox couple. Studies of the alkoxyphenyl ligands indicated that small but reproducible changes in the copper redox couple occurred upon presentation of a guest cation that would be expected to form a complex with the copper - ligand complex.",
author = "Chuang, {Chang Lin} and {Dos Santos}, Osvaldo and Xiaodong Xu and James Canary",
year = "1997",
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volume = "36",
pages = "1967--1972",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
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TY - JOUR

T1 - Synthesis and Cyclic Voltammetry Studies of Copper Complexes of Bromo- and Alkoxyphenyl-Substituted Derivatives of Tris(2-pyridylmethyl)amine

T2 - Influence of Cation - Alkoxy Interactions on Copper Redox Potentials

AU - Chuang, Chang Lin

AU - Dos Santos, Osvaldo

AU - Xu, Xiaodong

AU - Canary, James

PY - 1997/4/23

Y1 - 1997/4/23

N2 - A combination of host - guest chemistry and coordination chemistry in the design of electrochemical sensors for alkali metal and ammonium ions is described. The sensor molecules are coordination complexes between a copper ion and a functionalized tripodal ligand. Upon presentation of the ion to the sensor molecule, a shift in the redox potential of the copper ion occurs. In the course of the study, three new alkoxyphenyl-substituted derivatives of the ligand tris(2-pyridylmethyl)amine (TPA) were prepared and characterized. The synthesis of the new ligands involved the preparation of bromopyridyl - TPA derivatives followed by Suzuki coupling with substituted phenylboronic acids. Cyclic voltammetry studies of copper complexes of the ligands indicated that steric effects played a dominant role in the overall determination of the copper redox couple. Studies of the alkoxyphenyl ligands indicated that small but reproducible changes in the copper redox couple occurred upon presentation of a guest cation that would be expected to form a complex with the copper - ligand complex.

AB - A combination of host - guest chemistry and coordination chemistry in the design of electrochemical sensors for alkali metal and ammonium ions is described. The sensor molecules are coordination complexes between a copper ion and a functionalized tripodal ligand. Upon presentation of the ion to the sensor molecule, a shift in the redox potential of the copper ion occurs. In the course of the study, three new alkoxyphenyl-substituted derivatives of the ligand tris(2-pyridylmethyl)amine (TPA) were prepared and characterized. The synthesis of the new ligands involved the preparation of bromopyridyl - TPA derivatives followed by Suzuki coupling with substituted phenylboronic acids. Cyclic voltammetry studies of copper complexes of the ligands indicated that steric effects played a dominant role in the overall determination of the copper redox couple. Studies of the alkoxyphenyl ligands indicated that small but reproducible changes in the copper redox couple occurred upon presentation of a guest cation that would be expected to form a complex with the copper - ligand complex.

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