Die Kristallstruktur des meteoritischen Rhabdits (Fe, Ni)<sub>3</sub>P

Doenitz, Fritz-Dieter

doi:10.1524/zkri.1970.131.1-6.222

Cited by 25 publications

(19 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result agrees with the results reported by Doenitz [18] and partially confirms the results of conventional X -ray refinements with MoKα radiation [13][14][15]26]. A plausible explanation of the observed metal distribution relating to the three possible structural sites M1, M2 and M3 is still not available.…”

Section: Investigation Of the Crystal Structuresupporting

confidence: 90%

“…1 ) markes the experiments made by Skala [13][14][15] and 2 ) those of Doenitz [18]. (R) and (S) denotes rhabdite and schreibersite, respectively.…”

Section: Investigation Of the Crystal Structurementioning

confidence: 99%

“…The chemical similarity of Fe and Ni as well as the coordination of the three lattice sites (e.g. [18]: M1 -site: 2 Phosphorus atoms +13 metal atoms, M2: 4P +10M and M3: 3P +11M) cannot be invoked to clarify this problem. Nevertheless, these results are in agreement with neutron diffraction experiments [35].…”

Section: Investigation Of the Crystal Structurementioning

confidence: 99%

“…The crystal structure of a meteoritic (Fe,Ni) 3 P-crystal (rhabdite from the North Chile iron meteorite with Fe/Ni ratio ≈ 2) was determined for the first time 1970 by Doenitz [18]. It crystalzes in the tetragonal structure, especially in the space group I-4 (space-group number: 82) with the cell dimensions a = 9.040 Å, c = 4.462 Å and 8 formula units per unit cell.…”

Section: Introductionmentioning

confidence: 99%

“…A precise differentiation between Fe and Ni at the various structural sites is quite difficult by means of conventional X-ray diffraction methods because of their close scattering power [13][14][15][16]26]. However, using the anomalous scattering of the Co Kα -radiation Doenitz [18] [16]. In this connection it was also proposed, that the metal distribution of the meteoritic phosphides may be correlated to the thermal history of the meteorites (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Investigations of the meteoritic mineral (Fe,Ni)₃P

Geist¹,

Wagner

Nolze

et al. 2004

Cryst. Res. Technol.

View full text Add to dashboard Cite

A survey is presented on some characteristic features of meteoritic (Fe,Ni) 3 P which is an abundant and important minor phase of most iron meteorites. This mineral (named schreibersite/rhabdite) plays a decisive role during the formation of the so-called Widmanstätten pattern. Different transmission as well as scanning electron microscopic techniques have been applied to get more precise information about the real structure of the phosphide crystals, their chemical composition and the metal distribution across the phoshide/ kamacite interface. X-ray crystal structure determinations have been performed for selected (Fe,Ni) 3 P -cystals from various iron meteorites (Toluca, North Chile, Watson, Orange River, Morasko, Agpalilik, Odessa, Canyon Diablo). These experiments revealed a metal ordering, i.e. for the three non-equivalent metal positions a different substitution of Fe by Ni has been found. The perfection of the brittle (Fe,Ni) 3 P samples differs appreciably and seems to be dependent on the thermal history of each individual meteorite. Moreover, inside Ni-rich rhabdite crystals small monocrystalline inclusions of CrN (carlsbergite) have been detected.

show abstract

Section: Investigation Of the Crystal Structuresupporting

confidence: 90%

“…1 ) markes the experiments made by Skala [13][14][15] and 2 ) those of Doenitz [18]. (R) and (S) denotes rhabdite and schreibersite, respectively.…”

Section: Investigation Of the Crystal Structurementioning

confidence: 99%

Section: Investigation Of the Crystal Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigations of the meteoritic mineral (Fe,Ni)₃P

Geist¹,

Wagner

Nolze

et al. 2004

Cryst. Res. Technol.

View full text Add to dashboard Cite

show abstract

First Row Transition Metal Phosphides

Whitmire

Caudell

2004

Encyclopedia of Inorganic and Bioinorganic Chemistry

View full text Add to dashboard Cite

A review with 209 references of the binary and ternary metal phosphides for the first row transition metals. A large variety exists in M:P stoichiometry for this class of compounds although a number of general trends are easily identified. Compounds with different transition metals having the same M:P ratio often adopt similar crystallographic forms, providing tremendous flexibility in producing isostructural ternary or higher order compounds over a wide composition range. In some cases, however, a given M:P stoichiometry can choose to crystallize in one of two different crystal systems depending on transition metal, temperature, pressure, and dopant metals. Common features of the variety of structural types are presented. Crystal data are tabulated for compounds exhibiting a variety of different M:P stoichiometries for each transition metal in the first series. For ternary phosphides containing more than one first row transition metal, crystal data is also presented showing that these compounds adopt the structure of one of the parent metals involved. The metal phosphides have been well‐studied for the electronic, magnetic, and catalytic properties and a number of examples of these properties are presented.

show abstract