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

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

Inorg Chem

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

Published: October 2014

AI Article Synopsis

  • The study outlines the structure of Sr21Bi8Cu2(CO3)2O41, identified through advanced techniques like electron microscopy and X-ray diffraction, finding it has a unique layered composition.
  • The compound consists of two structural blocks, highlighting the interactions between bismuth and copper in its arrangement, particularly how bismuth forms dimers and copper with carbon occupies tunnels.
  • Notably, Sr21Bi8Cu2(CO3)2O41 is described as insulating and paramagnetic, illustrating its electrical properties and magnetic behavior.

Article 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.

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Source
http://dx.doi.org/10.1021/ic501322wDOI Listing

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