A Nickel(II) Nitrite Based Molecular Perovskite Ferroelectric. (23rd May 2019)

• Record Type: Journal Article
• Authors: Xiong, Yu‐An; Sha, Tai‐Ting; Pan, Qiang; Song, Xian‐Jiang; Miao, Shu‐Rong; Jing, Zheng‐Yin; Feng, Zi‐Jie; You, Yu‐Meng; Xiong, Ren‐Gen
• Is Part Of: Angewandte Chemie. Volume 131:Number 26(2019)
• Page Start: 8949
• Page End: 8953
• Publication Date: 2019-05-23
• Subjects: Chemisches Design -- Molekulare Ferroelektrika -- Nitrit -- Organic-anorganische Hybridperowskite -- Piezoantwort-Rasterkraftmikroskopie; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201904305
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: The X‐site ion in organic–inorganic hybrid ABX3 perovskites (OHPs) varies from halide ion to bridging linkers like HCOO −, N3 −, NO2 −, and CN − . However, no nitrite‐based OHP ferroelectrics have been reported so far. Now, based on non‐ferroelectric [(CH3 )4 N][Ni(NO2 )3 ], through the combined methodologies of quasi‐spherical shape, hydrogen bonding functionality, and H/F substitution, we have successfully synthesized an OHP ferroelectric, [FMeTP][Ni(NO2 )3 ] (FMeTP =N ‐fluoromethyl tropine). As an unprecedented nitrite‐based OHP ferroelectric, the well‐designed [FMeTP][Ni(NO2 )3 ] undergoes the ferroelectric phase transition at 400 K with an Aizu notation of 6/ mmm F m, showing multiaxial ferroelectric characteristics. This work is a great step towards not only enriching the molecular ferroelectric families but also accelerating the potential practical applications. Abstract : Durch eine Kombination aus quasi‐sphärischer Form, H‐Brücken‐Funktionalität und H/F‐Substitution wurde ein beispielloses, Nitrit‐basiertes molekulares Perowskit‐Ferroelektrikum [FMeTP][Ni(NO2 )3 ] (FMeTP =N ‐Fluormethyltropin) synthetisiert. Es durchläuft bei 400 K einen ferroelektrischen Phasenübergang mit der Aizu‐Notation 6/ mmm F m und zeigt multiaxiale Charakteristika.