[Ni(en)3](ReO4)2: SYNTHESIS, CRYSTAL STRUCTURE AND THERMAL PROPERTIES
E. A. Bykova, S. P. Khranenko, S. A. Gromilov
Keywords: nickel, rhenium, ethylenediamine, thermolysis, crystal chemistry, single crystal X-ray diffraction
Pages: 186-190
Abstract
The crystal structure of [Ni(en)3](ReO4)2 (en is ethylenediamine) is studied: a = 8.3997(2)Å, b = 15.6167(5) Å, c = 14.2406(4) Å, β = 100.378(1)°, V = 1837.46(9) Å3, P21/c space group, Z = 4, and dx = 2.673 g/cm3. It is shown that packing of the complex cations can be considered as single-layer pseudohexagonal. Thermal decomposition of the salt in a hydrogen atmosphere at 550°C is used to obtain a mixture of nickel with a nanocrystalline Re0.87Ni0.13 solid solution (a = 2.733(2) Å, c = 4.400(3) Å, Р63/mmc space group; CSR size is ~14 nm).
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