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.
(© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)