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Crystal structure of Dy11Ge4.33In5.67 and Tm11Ge4In6 from X-ray single-crystal and powder data. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2022. [DOI: 10.1515/znb-2021-0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Single crystals of Dy11Ge4.33In5.67 were grown from a sample of the starting composition Dy55Ge20In25 by arc-melting and subsequent annealing. Dy11Ge4.33In5.67 crystallizes with the Sm11Ge4In6-type structure, space group I4/mmm, which was refined from single-crystal X-ray diffractometer data: a = 11.4329(16), c = 16.168(3) Å, wR2 = 0.0341, 927 F
2 values and 42 refined parameters. The isotypic compound Tm11Ge4In6 was characterized by X-ray powder diffraction: a = 11.262(2), c = 15.979(3) Å, R
Bragg = 3.53%. The Sm11Ge4In6-type structure is a coloring variant of the Ho11Ge10 type, realized through germanium-indium ordering. The p-element substructure has four crystallographically independent sites: isolated germanium atoms (Ge4− Zintl anions), In4 squares and In/Ge–In/Ge dumb-bells with pronounced Ge/In mixing.
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A. Papoian G, Hoffmann R. Hypervalenzbindung in einer, zwei und drei Dimensionen: Erweiterung des Zintl-Klemm-Konzepts auf nichtklassische elektronenreiche Netze. Angew Chem Int Ed Engl 2000. [DOI: 10.1002/1521-3757(20000717)112:14<2500::aid-ange2500>3.0.co;2-t] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schobinger-Papamantellos P, Buschow K. Crystallographic and magnetic structure of Tb3Ge5. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0022-5088(89)90386-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chapter 51 Phase equilibria in ternary and higher order systems with rare earth elements and silicon. HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS 1984. [DOI: 10.1016/s0168-1273(84)07004-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chapter 49 Phase equilibria in ternary and higher order systems with rare earth elements and boron. ACTA ACUST UNITED AC 1984. [DOI: 10.1016/s0168-1273(84)06006-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Eremenko VN, Batalin VG, Buyanov YI, Obushenko IM. Constitution diagram of the gadolinium-germanium system. ACTA ACUST UNITED AC 1980. [DOI: 10.1007/bf00792035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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