Journal ArticleDOI
Über ternäre Oxocuprate. X. Zur Kenntnis von Ba2Cu3O4Cl2
R. Kipka,Hk. Müller-Buschbaum +1 more
TLDR
Ba2Cu3O4Cl2 wurde neu dargestellt und an Einkristallen rontgenographisch untersucht (a = 5,517, c = 13,808 A; Raumgruppe D-I4/mm) as mentioned in this paper.Abstract:
Ba2Cu3O4Cl2 wurde neu dargestellt und an Einkristallen rontgenographisch untersucht (a = 5,517, c = 13,808 A; Raumgruppe D–I4/mmm). Eine bisher unbekannte Verknupfung quadratisch planarer Polyeder von O2− um Cu2+ wurde aufgefunden. Die Cu2+/O2−-Quadrate sind teilweise durch Cl− zu einer verzerrt oktaedrischen Koordination erganzt.
About Ternary Oxocuprates. X. On Ba2Cu3O4Cl2
The preparation of Ba2Cu3O4Cl2 and results by single crystal X-ray methods are described (a = 5.517, c = 13.808 A; Space group D–I4/mmm). A so far unknown arrangement of square coordinated Cu2+ was detected. The Cu2+/O2−-squares are partly completed to a distorted octahedral coordination by two Cl−.read more
Citations
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Journal ArticleDOI
Oxometallates with Planar Coordination
TL;DR: The present state of this research area provides a wealth of interesting principles concerning one-, two-, and three-dimensional linkage of square-planar structural units as mentioned in this paper, and in certain cases the environment of these units in solids requires new conceptual models for chemical bonding.
Journal ArticleDOI
Syntheses, crystal structures and magneticproperties of francisite compounds Cu3Bi(SeO3)2O2X (X = Cl,Br and I)
Patrice Millet,B. Bastide,Volodymyr Pashchenko,Volodymyr Pashchenko,S. L. Gnatchenko,V. Gapon,Y. Ksari,A. Stepanov +7 more
TL;DR: In this paper, the authors describe a hexagonal network of [CuO4]======square plane sharing apices whose geometry is reminiscent of a Kagome======type lattice.
Journal ArticleDOI
Oxometallate mit ebener Koordination
TL;DR: In this article, a Fulle interessanter Prinzipien der ein-, zwei-and dreidimensionalen Verknupfung quadratisch-planarer Baugruppen is presented.
Journal ArticleDOI
Zur Kristallchemie von Kupferoxometallaten
TL;DR: The Oxocuprate wurden vor einigen Jahren einfach nur als chemische Stoffe wie unzahlige andere Verbindungen auch angesehen.
Journal ArticleDOI
Über Oxocuprate. XIII. Isolierte quadratisch planare CuO46−‐Polyeder in CuBi2O4, ein neuer Bautyp zur Formel Me23+M2+O4
R. Arpe,Hk. Müller-Buschbaum +1 more
TL;DR: In this article, a new type of crystal structure with the general formula Mc23+M2+O4 (Bi2CuO4) was presented and investigated by single crystal X-ray methods.
References
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Journal ArticleDOI
Über ternäre Oxocuprate. VII. Zur Kristallstruktur von Nd2CuO4
TL;DR: The crystal structure of Nd2CuO4 was examined by single crystal X-ray diffraction data (Space group D-I4/mm, a = 3.945, c = 12.171 A).
Journal ArticleDOI
Über Erdalkalimetall-Oxocuprate. V. Zur Kenntnis von Ca2CuO3 und SrCuO2
L. Teske,Hk. Müller-Buschbaum +1 more
TL;DR: The hitherto unknown compounds Ca2CuO3 and SrCuO2 were prepared and the structure determined by investigations of single crystal X-ray data as discussed by the authors, and the results see „Inhaltsubersicht”
Journal ArticleDOI
Über Erdalkalimetall—Oxocuprate. II. Zur Kenntnis von Sr2CuO3
TL;DR: Sr2CuO3 as mentioned in this paper has an orthorhombic symmetry and a coplanar neighbourhood of four oxygens around copper and a trigonal oxygen neighbourhood of Sr2+.
Journal ArticleDOI
Zur Kristallstruktur von NaCuO2
Klaus Hestermann,Rudolf Hoppe +1 more
TL;DR: In this article, the cristal structure of NaCuO2 has been determined by means of GUINIER photographs, and a chain [Cu[4]O]−-arrangement has been found.
Journal ArticleDOI
Über Erdalkalimetall-Oxocuprate. I. Zur Kenntnis von CaCu2O3
TL;DR: In this article, the hitherto unknown CaCu2O3 was prepared and the structure determined by investigation of single crystal X-ray patterns: Orthorhombic symmetry, space group D-Pmmn eith a = 9.85, b = 4.11 and c = 3.47 A.
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über Erdalkalimetalloxocuprate, VIII Zur Kenntnis von Sr2CuO2Cl2
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