Copper(i) complexes as alternatives to iridium(iii) complexes for highly efficient oxygen sensing†
Abstract
The complex [Cu(xantphos)(dmp)][PF6] (dmp = 2,9-dimethyl-1,10-phenanthroline) in a nanostructured metal oxyde matrix shows better sensitivity to oxygen (KSV = 9.74 ± 0.87 kPa−1 between 0 and 1 kPa pO2 and 5.59 ± 0.15 kPa−1 between 0 and 10 kPa pO2) than cyclometallated iridium complexes in the same conditions.