Sr₂₁Bi₈Cu₂(CO₃)₂O₄₁, a Bi⁵⁺ oxycarbonate with an original 10L structure

Sylvie Malo; Artem M Abakumov; Marco Daturi; Denis Pelloquin; Gustaaf Van Tendeloo; Anne Guesdon; Maryvonne Hervieu

doi:10.1021/ic501322w

Sr₂₁Bi₈Cu₂(CO₃)₂O₄₁, a Bi⁵⁺ oxycarbonate with an original 10L structure

Inorg Chem. 2014 Oct 6;53(19):10266-75. doi: 10.1021/ic501322w. Epub 2014 Sep 17.

Authors

Sylvie Malo¹, Artem M Abakumov, Marco Daturi, Denis Pelloquin, Gustaaf Van Tendeloo, Anne Guesdon, Maryvonne Hervieu

Affiliation

¹ Laboratoire CRISMAT and ‡Laboratoire LCS, ENSICAEN-UCBN , 6 Bld Maréchal Juin, 14050 Caen, France.

PMID: 25229311
DOI: 10.1021/ic501322w

Abstract

The layered structure of Sr21Bi8Cu2(CO3)2O41 (Z = 2) was determined by transmission electron microscopy, infrared spectroscopy, and powder X-ray diffraction refinement in space group P6₃/mcm (No. 194), with a = 10.0966(3)Å and c = 26.3762(5)Å. This original 10L-type structure is built from two structural blocks, namely, [Sr15Bi6Cu2(CO3)O29] and [Sr6Bi2(CO3)O12]. The Bi(5+) cations form [Bi2O10] dimers, whereas the Cu(2+) and C atoms occupy infinite tunnels running along c⃗. The nature of the different blocks and layers is discussed with regard to the existing hexagonal layered compounds. Sr21Bi8Cu2(CO3)2O41 is insulating and paramagnetic.