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.
|Number of pages||4|
|State||Published - 1 Jul 1989|
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry