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New Variants of (110)‐Oriented Layered Lead Bromide Perovskites, Templated by Formamidinium or Pyrazolium
Author(s) -
Guo YuanYuan,
Elliott Clement,
McNulty Jason A.,
Cordes David B.,
Slawin Alexandra M. Z.,
Lightfoot Philip
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202100433
Subject(s) - formamidinium , chemistry , halide , perovskite (structure) , crystallography , bromide , inorganic chemistry
Four new hybrid lead(II) halide perovskites, γ‐(FA) 2 PbBr 4 , (FA) 1.5 (AA) 0.5 PbBr 4 , (PY)(GA)PbBr 4 and (PY)(TZ)PbBr 4 ((FA)=formamidinium, (AA)=acetamidinium, (PY)=pyrazolium, (GA)=guanidinium and (TZ)=1,2,3‐triazolium), adopt (110)‐oriented layered perovskite structures. While (PY) is found to template the formation of ‘conventional’ (110)‐oriented structure types (i. e. containing staggered [PbBr 4 ] ∞ layers), (FA) is shown to facilitate formation of much less common variants based 3 : 1 ordering of the interlayer species or 3×2 step‐like corrugation of the perovskite‐like layers themselves.