{Reference Type}: Journal Article
{Title}: Vaporchromic Domino Transformation and Polarized Photonic Heterojunctions of Organoplatinum Microrods.
{Author}: Chen JC;Gong ZL;Li ZQ;Zhao YY;Tang K;Ma DX;Xu FF;Zhong YW;
{Journal}: Angew Chem Int Ed Engl
{Volume}: 0
{Issue}: 0
{Year}: 2024 Jul 18
{Factor}: 16.823
{DOI}: 10.1002/anie.202412651
{Abstract}: Photonic heterostructures with codable properties have shown great values as versatile information carriers at the micro and nanoscale. These heterostructures are typically prepared by a step-by-step growth or post-functionalization method to achieve varied emission colors among different building blocks. In order to realize high-throughput and multivariate information loading, we report here a strategy to integrate polarization signals into photonic heterojunctions. A U-shaped di-Pt(II) complex is assembled into highly-polarized yellow-phosphorescent crystalline microrods (Y-rod) by strong intermolecular Pt···Pt interaction. Upon end-initiated desorption of the incorporated CH2Cl2 solvents, Y-rod is transformed in a domino fashion into tri-block polarized photonic heterojunctions (PPHs) with alternate red-yellow-red emissions or red-phosphorescent microrods (R-rod). The red emissions of these structures are also highly polarized; however, their polarization directions are just orthogonal to those of the yellow phosphorescence of Y-rod. With the aid of a patterned mask, R-rod is further programmed into multi-block PPHs with precisely-controlled block sizes by side-allowed adsorption of CH2Cl2 vapor. X-ray diffraction analysis and theoretical calculations suggest that the solvent-regulated modulation of intramolecular and intermolecular excited states is critical for the construction of these PPHs.