ChemInform Abstract: Crystal Structure and Thermal Expansion Properties of New Compound La₂Cu_0.8Ge₃.

Abstract

Crystal Structure and Thermal Expansion Properties of New Compound La2Cu0.8Ge3. -The title compound is prepared by arc melting of the elements followed by annealing at 673 K for 800 h (yield given in g). La2Cu0.8Ge3 crystallizes in the tetragonal space group I41/amd with Z = 2 (α-ThSi2 structure; powder XRD). Its thermal expansion is studied by high-temperature powder XRD in the temperature range 321-753 K. The unit-cell parameters increase with increasing temperature. -(YAN, J.; LU, X.; SHEN, W.; ZENG*, L.; NONG, L.; J.