Pillar-layered Zn–triazolate–carboxylate frameworks tuned by the bend angles of ditopic ligands.

In the utilization of three ditopic ligands with different bend angles as pillars, we reported herein three pillar-layered Zn–triazolate–carboxylate frameworks, namely, [Zn 2 (ATRZ) 2 (BDC)] n ( 1 ), [Zn 2 (ATRZ) 2 (TPDC)] n ·2 n DMF ( 2 ) and [Zn 2 (ATRZ) 2 (ADDC)] n ( 3 ) (ATRZ = 3-amino-1,2,4-triazole, H 2 BDC = 1,4-benzenedicarboxylic acid, H 2 TPDC = 2,5-thiophenedicarboxylic acid, and H 2 ADDC = 1,3-adamantanedicarboxylic acid). Single crystal structural analyses demonstrate that different geometries of ditopic carboxylate pillars not only result in Zn–ATRZ layers adopting various corrugated configurations, but also give rise to 3,4-connected self-interpenetrated net of 1 and non-interpenetrated nets of 2 and 3 . All these compounds exhibit high thermal stability and blue photoluminescence. [ABSTRACT FROM AUTHOR]