General approach to structural categorization

6 ‚ Ruddlesden-Popper-phases

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1 ‚ Perovskites
2 ‚ Cation-deficient structures
3 ‚ Anion-deficient structures
4 ‚ Polytypes AmBnX3m
5 ‚ Layered structures
6 ‚ Ruddlesden-Popper-phases
6.1 ‚ A2B X4
6.2 ‚ A3 B2 X7
6.3 ‚ A4 B3 X10
6.4 ‚ An+1 Bn X3n+1
Variants and Intergrowths
7 ‚ Aurivillius phases
8 ‚ Other Homological Series

Mixed metal compounds of the Ruddlesden-Popper-series obey the following general formula:

An+1 Bn X3n+1 or (A X) (A' B X3)n (n = 1, 2, 3, ...)

The notation 0201, 0212, 0223, etc. is quite often used for compounds of this series,
where n = 1, 2, 3, ... respcetively.

The end members of the series correspond to

  • the NaCl structure (n = 0; AX) and
  • the Perovskite structure (n = infinite; A'BX3)

Adapted from "Hierarchies of perovskite-like crystals" by K. S. Aleksandrow and V. V. Beznosikov in Physics of the Solid State 39, 695-715 (1997).

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last changed: Jul 16, 1998. © 1997‚1998 Carsten Schinzer.