Cover Feature: Probing Calcium‐Based Metal‐Organic Frameworks via Natural Abundance 43Ca Solid‐State NMR Spectroscopy (Chem. Eur. J. 35/2018). Issue 35 (19th June 2018)

• Record Type: Journal Article
• Authors: Chen, Shoushun; Lucier, Bryan E. G.; Chen, Mansheng; Terskikh, Victor V.; Huang, Yining
• Is Part Of: Chemistry. Volume 24:Issue 35(2018)
• Page Start: 8695
• Page End: 8695
• Publication Date: 2018-06-19
• Subjects: calcium -- density functional calculations -- metal-organic frameworks -- microporous materials -- NMR spectroscopy; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201802975
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract : Calcium‐based metal‐organic frameworks (MOFs) are low cost and have bio‐compatible metal centers, but the Ca local environment is often poorly understood. Although very challenging due to 0.135 % natural abundance, 43 Ca solid‐state NMR at a high magnetic field of 21.1 T can probe the local structure of the Ca center in MOFs, investigate the presence of guests, and monitor phase changes. The cover features three phases of Ca‐BDC and their unique 43 Ca NMR spectra: as‐made (red), empty activated (blue), and hydrated (orange). More information can be found in the Communication by Y. Huang et al. onpage 8732 .