Luminescent, three-coordinate azadipyrromethene complexes of d(10) copper, silver, and gold.
Boron azadipyrromethenes are red-light-absorbing dyes with chromophoric capabilities deriving from a conjugated, chelating framework. Reported here are tricoordinate copper(I), silver(I), and gold(I) complexes of a tetraphenylazadipyrromethene ligand. The new complexes are characterized by optical absorption and emission spectroscopy, multinuclear NMR, mass spectrometry, elemental analysis, and X-ray diffraction crystallography. Time-dependent density functional theory calculations indicate that the principal absorption features in azadipyrromethene complexes result from optically allowed intraligand transitions that undergo configuration interaction.
Teets
Thomas S
TS
Department of Chemistry, Case Western Reserve University, Cleveland, OH 44106, USA.
Partyka
David V
DV
Esswein
Arthur J
AJ
Updegraff
James B
JB
Zeller
Matthias
M
Hunter
Allen D
AD
Gray
Thomas G
TG