444798-19-0Relevant articles and documents
Bis(aryl)acenaphthenequinonediimine substituent effect on the properties and coordination environment of ligands and their bis-chelate AgI complexes
Papanikolaou, Panagiotis A.,Gdaniec, Maria,Wicher, Barbara,Akrivos, Pericles D.,Tkachenko, Nikolai V.
, p. 5196 - 5205 (2013/10/22)
The reaction of a series of Ar-BIAN ligands (Ar = o-Ph, m-Cl, m-CF 3, p-Cl, p-MeO, and p-Me-C6H4) with AgNO 3 results in the formation of the corresponding bis-chelate complexes. Substituent groups on the aryl rings seem to offer tunability of the electronic properties of the diimines, also affecting the metal coordination environment through the mono-coordination or chelation of the nitrate anion as promoted by the substituents p-MeO, p-Me, and m-CF3. The enhanced absorption capacity of the complexes in the visible region in combination with the well-known redox activity of the ligands and their ability to potentially accommodate a fifth coordinated ligand on the metal center opens a route for the preparation of new silver species of high propensity for catalytic, photocatalytic, and biological applications. Six new AgI-bis(BIAN) complexes along with their ligands were synthesized and studied. Substituent groups offer tunability of the electronic properties and structural environment of the compounds. The versatility on the metal coordination sphere opens the way for the design of photoactive species with a variety of applications. Copyright
