Mesoporous Crystalline Silver-Chalcogenolate Cluster-Assembled Material with Tailored Photoluminescence Properties

Crystalline cluster-assembled materials (CAMs) are emerging as types of exploratory fabrications due to their atomically precise structures and intriguing chemical/physical properties, as well as their luminescent function. However, constructing novel luminescent porous crystalline CAMs present an enduring and significant challenge owing to their instability and poor ambient-temperature photoluminescent quantum yields. In this work, we synthesized successfully, a mesoporous crystalline CAM (1. DMAC), based on silver-chalcogenolate cluster and 1,1,2,2-tetrakis(4(pyridin-4-yl)phenyl)ethene (TPPE) ligand, with high-symmetry structure and ultralarge pores. 1. DMAC exhibited adjustable intense luminescence, originating from aggregation-induced emission (AIE) properties of the TPPE ligand. The diameter of the cubic cage in 1. DMAC was as high as 32 angstrom, which endowed it with satisfactory encapsulation capacity for different guest molecules. Interestingly, by adjusting functionalized guest molecules, circularly polarized luminescence, white-light-emitting, and room-temperature phosphorescence were readily realized. 1. DMAC could enrich limited kinds of mesoporous crystalline CAMs and offers the prospect of application in host-guest chemistry. More importantly, this work provides a strategy, versatile for tailoring luminescence in crystalline porous materials.