A Copper(I) N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine Complex and Its Carbon Monoxide Adduct in Aqueous Solutions

Eiichi Kimura; Tohru Koike; Mutsuo Kodama; Dan Meyerstein

doi:10.1021/ic00314a025

A Copper(I) N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine Complex and Its Carbon Monoxide Adduct in Aqueous Solutions

Eiichi Kimura, Tohru Koike, Mutsuo Kodama, Dan Meyerstein

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Abstract

Copper(I) ion forms a stable 1:1 complex with pmdien (2,5,8-trimethyl-2,5,8-triazanonane, 7) in CO-saturated or CH₃CN-containing aqueous solutions, due to the formation of a stable 1:1 CO or CH₃CN adduct. The formation constants of [Cu-(pmdien)(CO)]⁺(8) and [Cu(pmdien)(NCCH₃)]⁺have been established by the pH-metric titration and polarographic methods. Moreover, crystalline [Cu(pmdien)(CO)]ClO₄ has been isolated from CO-saturated aqueous solution. The observed v_CO bands of the CO adduct 8 at 2082 cm^-1(KBr pellet) and 2088 cm^-1(aqueous solution) agree with the end-on CO coordination.

Original language	English
Pages (from-to)	2998-3001
Number of pages	4
Journal	Inorganic Chemistry
Volume	28
Issue number	15
DOIs	https://doi.org/10.1021/ic00314a025
State	Published - 1 Jul 1989
Externally published	Yes

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title = "A Copper(I) N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine Complex and Its Carbon Monoxide Adduct in Aqueous Solutions",

abstract = "Copper(I) ion forms a stable 1:1 complex with pmdien (2,5,8-trimethyl-2,5,8-triazanonane, 7) in CO-saturated or CH3CN-containing aqueous solutions, due to the formation of a stable 1:1 CO or CH3CN adduct. The formation constants of [Cu-(pmdien)(CO)]+(8) and [Cu(pmdien)(NCCH3)]+have been established by the pH-metric titration and polarographic methods. Moreover, crystalline [Cu(pmdien)(CO)]ClO4 has been isolated from CO-saturated aqueous solution. The observed vCO bands of the CO adduct 8 at 2082 cm-1(KBr pellet) and 2088 cm-1(aqueous solution) agree with the end-on CO coordination.",

author = "Eiichi Kimura and Tohru Koike and Mutsuo Kodama and Dan Meyerstein",

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T1 - A Copper(I) N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine Complex and Its Carbon Monoxide Adduct in Aqueous Solutions

AU - Kimura, Eiichi

AU - Koike, Tohru

AU - Kodama, Mutsuo

AU - Meyerstein, Dan

PY - 1989/7/1

Y1 - 1989/7/1

N2 - Copper(I) ion forms a stable 1:1 complex with pmdien (2,5,8-trimethyl-2,5,8-triazanonane, 7) in CO-saturated or CH3CN-containing aqueous solutions, due to the formation of a stable 1:1 CO or CH3CN adduct. The formation constants of [Cu-(pmdien)(CO)]+(8) and [Cu(pmdien)(NCCH3)]+have been established by the pH-metric titration and polarographic methods. Moreover, crystalline [Cu(pmdien)(CO)]ClO4 has been isolated from CO-saturated aqueous solution. The observed vCO bands of the CO adduct 8 at 2082 cm-1(KBr pellet) and 2088 cm-1(aqueous solution) agree with the end-on CO coordination.

AB - Copper(I) ion forms a stable 1:1 complex with pmdien (2,5,8-trimethyl-2,5,8-triazanonane, 7) in CO-saturated or CH3CN-containing aqueous solutions, due to the formation of a stable 1:1 CO or CH3CN adduct. The formation constants of [Cu-(pmdien)(CO)]+(8) and [Cu(pmdien)(NCCH3)]+have been established by the pH-metric titration and polarographic methods. Moreover, crystalline [Cu(pmdien)(CO)]ClO4 has been isolated from CO-saturated aqueous solution. The observed vCO bands of the CO adduct 8 at 2082 cm-1(KBr pellet) and 2088 cm-1(aqueous solution) agree with the end-on CO coordination.

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A Copper(I) N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine Complex and Its Carbon Monoxide Adduct in Aqueous Solutions

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