Alkali Phosphonate Metal–Organic Frameworks

Abstract

Abstract A new family of porous metal–organic frameworks (MOFs), namely alkali phosphonate MOFs, is reported. [Na 2 Cu(H 4 TPPA)] ⋅ (NH 2 (CH 3 ) 2 ) 2 ( GTUB‐1 ) was synthesized using the tetratopic 5,10,15,20‐tetrakis[ p ‐phenylphosphonic acid] porphyrin ( H 8 ‐TPPA ) linker with planar X‐shaped geometrical core. GTUB‐1 is composed of rectangular void channels with BET surface area of 697 m 2 g −1 . GTUB‐1 exhibits exceptional thermal stability. The toxicity analysis of the ( H 8 ‐TPPA ) linker indicates that it is well tolerated by an intestinal cell line, suggesting its suitability for creating phosphonate MOFs for biological applications.