Kurt O. Klepp, Herbert Boller,
"Preparation and crystal structure of Na7Cu12S10, a mixed valent thiocuprate with a pseudo-one-dimensional structure"
, in Journal of Alloys and Compounds, 8-1992, ISSN: 0925-8388, K.O. Klepp, M. Sing, H. Boller: Preparation and crystal structure of Na7Cu12S10, a mixed valent thiocuprate with a pseudo-one-dimensional structure, J. Alloys and Comp., 198 (1993) 25
Original Titel:
Preparation and crystal structure of Na7Cu12S10, a mixed valent thiocuprate with a pseudo-one-dimensional structure
Sprache des Titels:
Englisch
Original Kurzfassung:
The novel mixed thiocuprate Na7Cu12S10 was prepared by a fusion reaction of the binary sulphides Na2S and Cu2S and sulphur at 800?C. Na7Cu12S10 is monoclinic, space group P2/m, with a=16.074(9)Ä, b=3.847(1)Ä, c=16.222(8)Ä, beta=91.94(3)? and Z=2. The crystal structure was determined from single-crystal data and refined to a conventional R of 0.052 for 1976 observed reflections with Fo(2)>=4sigma(Fo(2)) and 178 variables.
The structure is pseudo-one-dimensional, characterized by a novel type of infinite triple chains 1-[Cu12S10](7-) which are formed by condensation of 1-[Cu4S4] units via common sulphur atoms. The unit cell contains two crystallographically independent moieties. The Na ions occupy octahedral voids in the h.c.p. arrangement of the chalcogen atoms.
Sprache der Kurzfassung:
Englisch
Journal:
Journal of Alloys and Compounds
Erscheinungsmonat:
8
Erscheinungsjahr:
1992
Notiz zum Zitat:
K.O. Klepp, M. Sing, H. Boller: Preparation and crystal structure of Na7Cu12S10, a mixed valent thiocuprate with a pseudo-one-dimensional structure, J. Alloys and Comp., 198 (1993) 25
ISSN:
0925-8388
Anzahl der Seiten:
6
Publikationstyp:
Aufsatz / Paper in sonstiger referierter Fachzeitschrift