1440965-44-5Relevant academic research and scientific papers
Luminescent coordination polymers based on self-assembled cadmium dipyrrin complexes
Beziau, Antoine,Baudron, Stephane A.,Guenet, Aurelie,Hosseini, Mir Wais
, p. 3215 - 3223 (2013/04/10)
A series of novel CdII complexes based on α,β- unsubstituted dipyrrin ligands (dpm) has been prepared and characterised both in solution and in the solid state. These compounds are of the [Cd(dpm) 2] type, with the coordination sphere of the metal centre occupied by two dpm chelates. Interestingly, in contrast to what has been reported for the ZnII analogues, in the presence of a pyridyl- or imidazolyl-appended dpm ligand, the coordination number of the CdII cation can be increased to six, leading to an octahedral coordination sphere. As a consequence, the formation of 1-, 2-, and 3D coordination polymers by self-assembly is observed. Photophysical investigations of the discrete complexes and self-assembled networks have demonstrated that both types of compounds are luminescent in the solid state. Let's go down the column! The first [Cd(dpm)2] complexes based on α,β-unsubstituted dipyrrin ligands (dpm) have been prepared and characterised in both solution and the solid state. The coordination sphere of the metal centre, occupied by two dpm chelates, may be extended with additional pyridyl or imidazolyl groups, unlike what has been reported for the ZnII analogues. This leads to self-assembly of these species into 1-, 2-, and 3D coordination polymers, which display luminescence in the crystalline state (see figure). Copyright
