A 36-Fold Multiple Unit Cell and Switchable Anisotropic Dielectric Responses in an Ammonium Magnesium Formate Framework

• Published in: Angewandte Chemie International Edition Vol. 54; no. 8; pp. 2534 - 2537
• Main Authors: Shang, Ran, Wang, Zhe-Ming, Gao, Song
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 16.02.2015; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Ammonium; ammonium metal formate; Anisotropy; Cations; Dielectric constant; dielectricity; Displays; Formates; High temperature; Holes; Low temperature; Magnesium; metal-organic frameworks; multiple unit cell; phase transition; Three dimensional; Unit cell; multiple unit cell; dielectricity; phase transition; ammonium metal formate; metal-organic frameworks

An ammonium Mg formate framework, prepared by using di‐protonated 1,3‐propanediamine (pnH22+), has a rare three‐dimensional binodal (412⋅63)(49⋅66)3 Mg‐formate framework with elongated cavities accommodating pnH22+⋅⋅⋅H2O⋅⋅⋅pnH22+ assemblies. It displays a para‐electric to antiferroelectric phase tra...