Investigation of the composition space diagram of the ZnF 2-3,5-diamino-1,2,4-triazole-HF-H2O chemical system and structural characterization of a new fluorinated guanazolate MOF [Zn 3F2]·(Am2TAZ)4

Amandine Cadiau, Charlotte Martineau*, Francis Taulelle, Karim Adil

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The ZnF2-3,5-diamino-1,2,4-triazole-HF-H2O system has been explored by hydrothermal syntheses over a large domain of concentrations using micro-wave heating. In the composition space diagram, the crystallization areas of two fluorinated guanazolate MOFs, [Zn3F2] ·(Am2TAZ)4 (I) and the previously described [ZnF]·(Am2TAZ) (II), have been defined (with Am2TAZ = 3,5-diamino-1,2,4-triazolate). Compound (I) (tetragonal, P 4/n n c (#126), a = 11.7055(6), c = 7.3291(4)) was characterized by single-crystal X-ray diffraction, thermogravimetric measurement and 1H and 19F solid-state nuclear magnetic resonance (NMR) spectroscopy. Its crystal structure, showing a tfj topology, contains a unusual zinc double coordination. It can be described as infinite chains running along the crystallographic a- and b-directions in which clusters of Zn2N4 tetrahedra and ZnN4F2 octahedra alternate. The analysis of the ZnF 2-HAm2TAZ-HF-H2O composition space diagram gives possible hints on a relationship between the HF concentration in solution and the zinc coordination environment in the final guanazolate fluorinated MOF obtained.

Original languageEnglish (US)
Pages (from-to)104-108
Number of pages5
JournalJournal of Fluorine Chemistry
Volume150
DOIs
StatePublished - Jun 1 2013

Keywords

  • Fluorinated metal-organic framework materials
  • Hydrothermal synthesis
  • Microwave
  • Solid state NMR

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Environmental Chemistry

Fingerprint

Dive into the research topics of 'Investigation of the composition space diagram of the ZnF <sub>2</sub>-3,5-diamino-1,2,4-triazole-HF-H<sub>2</sub>O chemical system and structural characterization of a new fluorinated guanazolate MOF [Zn <sub>3</sub>F<sub>2</sub>]·(Am<sub>2</sub>TAZ)<sub>4</sub>'. Together they form a unique fingerprint.

Cite this