EuNdCuS₃: Crystal Structure
of the High-Temperature Polymorph and Properties

A. V. Ruseikina^a, L. A. Solovyev^b, O. V. Andreev^a, and A. A. Kislitsyn^a

^a Tyumen State University, ul. Semakova 10, Tyumen, 625003 Russia

^b Institute of Chemistry and Chemical Engineering, Siberian Branch, Russian Academy of Sciences,
ul. Karla Marksa 42, Krasnoyarsk, 660049 Russia

e-mail: adeschina@mail.ru

Received June 26, 2013

Abstract—The X-ray diffraction structure of the high-temperature polymorph of complex sulfide EuNdCuS₃
is determined. The phase we prepared has an orthorhombic structure with the unit cell parameters a = 8.0648(3)
Å, b = 4.0207(1) Å, c = 15.7924(3) Å, space group Pnma, Z = 4, Ba₂MnS₃ type structure. The sample is IR
transparent in the range 1800–2800 cm^–1. Thermal expansion coefficient is found to experience jumps, which
are characteristic of phase transitions.

DOI: 10.1134/S0036023614100143

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