From Operando Raman Mechanochemistry to "NMR Crystallography": Understanding the Structures and Interconversion of Zn-Terephthalate Networks Using Selective ¹⁷O-Labeling.

ABSTRACT: The description of the formation, structure, and reactivity of coordination networks and metal-organic frameworks (MOFs) remains a real challenge in a number of cases. This is notably true for compounds composed of Zn²⁺ ions and terephthalate ligands (benzene-1,4-dicarboxylate, BDC) because of the difficulties in isolating them as pure phases and/or because of the presence of structural defects. Here, using mechanochemistry in combination with operando Raman spectroscopy, the observation of the formation of various zinc terephthalate compounds was rendered possible, allowing the distinction and isolation of three intermediates during the ball-milling synthesis of Zn₃(OH)₄(BDC). An "NMR crystallography" approach was then used, combining solid-state NM

SUBMITTER: Leroy C 

PROVIDER: S-EPMC8908548 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature