title: Synthesis, crystal structure, and solid-state NMR investigations of heteronuclear zn/co coordination networks--a comparative study.
abstract: Synthesis and solid-state NMR characterization of two isomorphous series of zinc and cobalt coordination networks with 1,2,4-triazolyl benzoate ligands are reported. Both series consist of 3D diamondoid networks with four-fold interpenetration. Solid-state NMR identifies the metal coordination of the ligands, and assignment of all (1)H and (13)C shifts was enabled by the combination of (13)C editing, FSLG-HETCOR spectra, and 2D (1)H-(1)H back-to-back (BABA) spectra with results from NMR-CASTEP calculations. The incorporation of Co(2+) replacing Zn(2+) ions in the MOF over the full range of concentrations has significant influences on the NMR spectra. A uniform distribution of metal ions is documented based on the analysis of (1)H T1 relaxation time measurements.
authors.affiliation: Universität Leipzig, Fakultät für Physik und Geowissenschaften, Linnéstr. 5, D-04103, Germany.
authors.forename: Anusree
authors.initials: A
authors.lastname: Viswanath Kuttatheyil
authors.forename: Daniel
authors.initials: D
authors.lastname: Lässig
authors.forename: Jörg
authors.initials: J
authors.lastname: Lincke
authors.forename: Merten
authors.initials: M
authors.lastname: Kobalz
authors.forename: Maria
authors.initials: M
authors.lastname: Baias
authors.forename: Katja
authors.initials: K
authors.lastname: König
authors.forename: Jörg
authors.initials: J
authors.lastname: Hofmann
authors.forename: Harald
authors.initials: H
authors.lastname: Krautscheid
authors.forename: Chris J
authors.initials: CJ
authors.lastname: Pickard
authors.forename: Jürgen
authors.initials: J
authors.lastname: Haase
authors.forename: Marko
authors.initials: M
authors.lastname: Bertmer