0000000000296215
AUTHOR
Helge Reinsch
Highly stable and porous porphyrin-based zirconium and hafnium phosphonates – electron crystallography as an important tool for structure elucidation† †Electronic supplementary information (ESI) available: Experimental procedures, analytical data including NMR spectroscopy, Pawley fits, TG, IR, microscopy and sorption measurements. CCDC 1831844. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8sc01533c
A highly porous and stable Zr-MOF containing a planar porphyrin-based tetraphosphonic acid was synthesized and characterized regarding its sorption properties and chemical stability.
Expanding the Variety of Zirconium‐based Inorganic Building Units for Metal–Organic Frameworks
Two new zirconium-based metal-organic frameworks with the composition [Zr6 O4 (OH)4 (OAc)6 (BDC)3 ] (CAU-26) and [Zr5 O4 (OH)4 (OAc)4 (BDC)2 ] (CAU-27) are reported, which were synthesized from acetic acid, a rarely utilized but green and sustainable solvent (BDC2- : 1,4-benzenedicarboxylate). Structure determination aided by automated electron diffraction tomography revealed that CAU-26 is composed of layers of well-known {Zr6 O8 } clusters interconnected by terephthalate ions. In contrast CAU-27 exhibits a three-dimensional structure with a so far unknown type of one-dimensional inorganic building unit (IBU), which can be rationalized as condensed polyhedron-sharing chains of {Zr6 O8 } cl…
Highly stable and porous porphyrin-based zirconium and hafnium phosphonates – electron crystallography as an important tool for structure elucidation
The Ni-metallated porphyrin-based tetraphosphonic acid (Ni-tetra(4-phosphonophenyl)porphyrin, Ni-H8TPPP) was used for the synthesis of highly porous metal phosphonates containing the tetravalent cations Zr4+ and Hf4+. The compounds were thoroughly characterized regarding their sorption properties towards N2 and H2O as well as thermal and chemical stability. During the synthesis optimization the reaction time could be substantially decreased under stirring from 24 to 3 h in glass vials. M-CAU-30, [M2(Ni-H2TPPP)(OH/F)2]·H2O (M = Zr, Hf) shows exceptionally high specific surface areas for metal phosphonates of aBET = 1070 and 1030 m2 g-1 for Zr- and Hf-CAU-30, respectively, which are very clos…
CCDC 1880628: Experimental Crystal Structure Determination
Related Article: Sebastian Leubner, Haishuang Zhao, Niels Van Velthoven, Mickael Henrion, Helge Reinsch, Dirk De Vos, Ute Kolb, Norbert Stock|2019|Angew.Chem.,Int.Ed.|58|10995|doi:10.1002/anie.201905456
CCDC 1880629: Experimental Crystal Structure Determination
Related Article: Sebastian Leubner, Haishuang Zhao, Niels Van Velthoven, Mickael Henrion, Helge Reinsch, Dirk De Vos, Ute Kolb, Norbert Stock|2019|Angew.Chem.,Int.Ed.|58|10995|doi:10.1002/anie.201905456
CCDC 1831844: Experimental Crystal Structure Determination
Related Article: Timo Rhauderwiek, Haishuang Zhao, Patrick Hirschle, Markus Döblinger, Bart Bueken, Helge Reinsch, Dirk De Vos, Stefan Wuttke, Ute Kolb, Norbert Stock|2018|Chemical Science|9|5467|doi:10.1039/C8SC01533C