TYPIX Standardized Data and Crystal Chemical Characterization of Inorganic Structure Types

1994 ◽  
Author(s):  
Erwin Parthé ◽  
Louise Gelato ◽  
Bernard Chabot ◽  
Marinella Penzo ◽  
Karin Cenzual ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Crystal Chemical ◽  
Inorganic Structure

TYPIX Standardized Data and Crystal Chemical Characterization of Inorganic Structure Types

1993 ◽  
Author(s):  
Erwin Parthé ◽  
Louise Gelato ◽  
Bernard Chabot ◽  
Marinella Penzo ◽  
Karin Cenzual ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Crystal Chemical ◽  
Inorganic Structure

TYPIX — Standardized Data and Crystal Chemical Characterization of Inorganic Structure Types

1993 ◽  
Author(s):  
Erwin Parthé ◽  
Louise Gelato ◽  
Bernard Chabot ◽  
Marinella Penzo ◽  
Karin Cenzual ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Crystal Chemical ◽  
Inorganic Structure

Crystal Chemical Characterization of Inorganic Structure Types

1993 ◽  
pp. 41-260 ◽  
Author(s):  
Erwin Parthé ◽  
Louise Gelato ◽  
Bernard Chabot ◽  
Marinella Penzo ◽  
Karin Cenzual ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Crystal Chemical ◽  
Inorganic Structure

Powder diffraction data for the homeotypic intermetallic compounds (Co, Ni)4Al13(h) and Co2NiAl9

1999 ◽  
Vol 14 (1) ◽  
pp. 64-68 ◽  
Author(s):  
K. Gotzmann ◽  
U. Burkhardt ◽  
M. Ellner ◽  
Yu. Grin
Keyword(s):  
Intermetallic Compound ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Chemical Characterization ◽  
Cell Number ◽  
Unit Cell ◽  
Crystal Chemical ◽  
Powder Diffraction Data ◽  
Inorganic Structure

Two homeotypical phases occur at the mole fraction xAl≈0.75 in the ternary system Co-Ni-Al: the pseudoternary intermetallic compound (Co, Ni)4Al13(h) (space group C2/m, Pearson code mC(34-1.8)) [Notation, according to Parthé et al. (1993). TYPIX, Standardized Data and Crystal Chemical Characterization of Inorganic Structure Types (Springer, Berlin), Vol. 2, p. 269, Vol. 3, p. 1055]. For structures with partly occupied sites, the hybrid Pearson code is given as (the sum of the multiplicities of all, fully or partly occupied sites in the unit cell)−(number of structural vacancies in the unit cell)], and the ternary compound Co2NiAl9 (Immm, oI96). Powder diffraction data are reported for these materials or phases—from the viewpoint of phase equilibria—immediately neighboring phases.

Structural role of copper in the minerals of the pearceite-polybasite group: the case of the new minerals cupropearceite and cupropolybasite

2007 ◽  
Vol 71 (06) ◽  
pp. 641-650 ◽  
Author(s):  
L. Bindi ◽  
M. Evain ◽  
P. G. Spry ◽  
K. T. Tait ◽  
S. Menchetti
Keyword(s):  
Chemical Characterization ◽  
Sample Space ◽  
The Other ◽  
Crystal Chemical ◽  
Structural Position ◽  
Space Group ◽  
Cu Content ◽  
Own Name

Abstract The pearceite-polybasite group of minerals, general formula [M6T2S7][Ag9CuS4] with M = Ag, Cu; and T = As, Sb, show a crystal structure which can be described as the succession, along the c axis, of two pseudo-layer modules: a [M6T2S7]2– A module layer and a [Ag9CuS4]2+ B module layer. Copper is present in one structural position of the B module layer and replaces Ag in the only fully occupied M position of the A module layer. When the Cu content is >4.00 a.p.f.u., the structural position of the A module layer becomes Cu-dominant and, consequently, the mineral deserves its own name. In this paper we report the crystal-chemical characterization of two Cu-rich members exhibiting the 111 unitcell type (corresponding to the Tac polytype). One sample (space group (P )m1, a 7.3218(8), c 11.8877(13) Å, V 551.90(10) Å3, Z = 1) having As >Sb and with the structural position of the A module layer dominated by Cu, has been named cupropearceite and the other sample (space group (P3̄)m1, a 7.3277(3), c 11.7752(6) Å, V 547.56(8) Å3, Z = 1) having Sb >As has been named cupropolybasite. Both the new minerals and mineral names have been approved by the IMA-CNMNC.

Crystal-chemical characterization of mixed-valent indium chalcogenides by X-ray absorption spectroscopy (EXAFS)

2000 ◽  
Vol 215 (8) ◽  
Author(s):  
M. Epple ◽  
M. Panthöfer ◽  
R. Walther ◽  
H.J. Deiseroth
Keyword(s):  
Absorption Spectroscopy ◽  
Chemical Characterization ◽  
Crystal Chemical ◽  
X Ray ◽  
X Ray Absorption

The mixed-valent indium chalcogenides InTe, In

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