Heating effect of a one-dimensional molecular assembly on self-repairing capability in the nanoscopic channels of mesoporous silica

In this paper, organometallic/silica nanocomposite [Au₃Pz₃]/silicahex with a hexagonal geometry shows heating effect of the one-dimensional columnar assembly confined in the silicate channel on self-repairing capability. Differential scanning calorimetry (DSC) profile of this material displayed a single endothermic peak at 164 ^oC and 158 ^oC upon first and second heating-cooling, respectively, which is likely assignable to the melting temperature of the columnar assemblies (Tm), as a possible consequence of the breakdown of the metallophilic interaction. This DSC profile also indicates that, when the complex is confined in the thermally stable nanoscopic hexagonal silicate channel, its luminescent center protected against thermal disruption.