How Strong Is the Hydrogen Bond in Hybrid Perovskites?
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ABSTRACT: Hybrid organic-inorganic perovskites represent a special class of metal-organic framework where a molecular cation is encased in an anionic cage. The molecule-cage interaction influences phase stability, phase transformations, and the molecular dynamics. We examine the hydrogen bonding in four AmBX3 formate perovskites: [Am]Zn(HCOO)3, with Am+ = hydrazinium (NH2NH3+), guanidinium (C(NH2)3+), dimethylammonium (CH3)2NH2+, and azetidinium (CH2)3NH2+. We develop a scheme to quantify the strength of hydrogen bonding in these systems from first-principles, which separates the electrostatic interactions between t
SUBMITTER: Svane KL
PROVIDER: S-EPMC5765532 | biostudies-literature | 2017 Dec
REPOSITORIES: biostudies-literature
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