The orthorhombic crystal structure of Ru₂Si₃, Ru₂Ge₃, Os₂Si₃ and Os₂Ge₃

Article Article scientifique Article The orthorhombic crystal structure of Ru₂Si₃, Ru₂Ge₃, Os₂Si₃ and Os₂Ge₃ eng 1974-11-15 author Poutcharovsky Dmitry Jourevitch 60875 author Parthe Erwin 25104 2692-2696 10.1107/S0567740874007825 0567-7408 http://scripts.iucr.org/cgi-bin/paper?S0567740874007825 Single-Crystal studies have indicated that the true symmetry of Ru₂Ge₃ is not tetragonal but orthorhombic. Space group Pbcn (No. 60); a = 11-436, b = 9-238 and e = 5-716 Å; Z = 8, Dx = 9-23 g cm⁻³, F.W. 419-91, F(000)= 1472, μ(Mo Kα)=40-4 cm⁻¹. The structure was solved by the Patterson method and refined to an R of 0-085. The compounds Ru₂Si₃, Os₂Si₃ and Os₂Ge₃ are isotypic. The Ru₂Ge₃ structure is related to the tetragonal Ru₂Sn₃ structure. Two unit cells of the latter placed side by side give the orthorhombic unit cell of Ru₂Ge₃ (a/c=2). Whereas the positions of the transition element in both structures are nearly identical and of the β-tin type, there are differences between Sn and Ge sites and consequently different coordination polyhedra. Dewey 540 40 Département de chimie minérale, analytique et appliquée 145 false Acta crystallographica. Section B, Structural crystallography and crystal chemistry 30 11 7af6354d-e7fd-472d-8fdd-6e4f825be6ca Article (Published version) Restricted Parthe_AC_1974302692.pdf 913288 application/pdf restrictedAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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The orthorhombic crystal structure of Ru₂Si₃, Ru₂Ge₃, Os₂Si₃ and Os₂Ge₃	Acta crystallographica. Section B, Structural crystallography and crystal chemistry			1974	242	0

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Poutcharovsky, Dmitry Jourevitch