Investigation of some properties of ternary compound single crystals in the Cu—Sn—P system

Goryunova, N. A.; Орлов, В. М.; Sokolova, V. I.; Shpenkov, George P.; Цветкова, Е. В.

doi:10.1002/pssa.19700030110

Cited by 30 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On our way to prepare new polyphosphides, we focused on solid-state reactions with mineralizing agents as reaction promoters . Following this concept, we succeeded in the preparation of M 3 SnCuP 10 containing Ag 3 Sn and Au 3 Sn heteroclusters and adamantane analogue P 10 cages. , Heteroclusters like Cu 3 Sn in Cu 4 SnP 10 , and Ag 3 Sn or Au 3 Sn in M 3 SnP 7 , are the only examples of M 3 M‘ clusters stabilized in a polyphosphide substructure. This preparative clue also led to a success in the preparation of P(black).…”

Section: Introductionmentioning

confidence: 99%

Au₃SnP₇@Black Phosphorus: An Easy Access to Black Phosphorus

2007

View full text Add to dashboard Cite

Black phosphorus can be prepared under low-pressure conditions at 873 K from red phosphorus via the addition of small quantities of gold, tin, and tin(IV) iodide. Au3SnP7, AuSn, and Sn4P3 were observed as additional phases. Tin(IV) iodide remains unreacted during the preparation process. The crystal structure of black phosphorus was redetermined from single crystals. P (295 K): a = 3.316(1) A, b = 10.484(2) A, c = 4.379(1) A, V = 152.24(6) A3, space group Cmce (No. 64). Solid-state 31P MAS NMR spectroscopy and X-ray powder diffraction were performed to substantiate the high crystal quality of black phosphorus. A possible mechanism for the formation is discussed in terms of the comparable structural features of black phosphorus and Au3SnP7. Thermodynamic calculations showed that the only relevant gas-phase species, P4, and the transport reactions are not suitable for the preparation of orthorhombic black phosphorus at temperatures above 773 K. A kinetically controlled mechanism must be favored instead of a thermodynamically controlled formation. The new preparation method of black phosphorus represents an easy and effective way to avoid complicated preparative setups, toxic catalysts, or "dirty" flux methods and is of general interest in elemental chemistry.

show abstract

Section: Introductionmentioning

confidence: 99%

Au₃SnP₇@Black Phosphorus: An Easy Access to Black Phosphorus

2007

View full text Add to dashboard Cite

show abstract

“…For more than 40 years, the preparation and characterization of phosphides has resulted in a plethora of materials that feature an intriguing variety of compositions and structures. , Among the numerous P n structural motifs realized, the adamantane-like [P 10 ] 6- cage has been observed in only one compound to date. , Cu 4 SnP 10 ( a = 10.267(1) Å, space group F 4̄3 m , No. 216) belongs to the family of ternary diamond-related structures.…”

Section: Introductionmentioning

confidence: 99%

Ag₃SnCuP₁₀: [Ag₃Sn] Tetrahedra Embedded between Adamantane-Type [P₁₀] Cages

et al. 2006

View full text Add to dashboard Cite

Ag3SnCuP10 was synthesized from a stoichiometric mixture of copper, silver, tin, and red phosphorus, with SnI4 added as a mineralization agent. Cubic Ag3SnCuP10, space group F3m (No. 216) with lattice parameter a = 10.503(1) A and Z = 4, consisting of orientationally disordered [Ag3Sn] heteroclusters and adamantane-type [P10] cages, is one example in which structure determination was possible only by the combined use of diffraction and spectroscopic methods. An ideal 4-fold domain twin structure that results for a R3m model, featuring an ordered arrangement of the heteroclusters, cannot be differentiated from the F3m model by diffraction methods alone. After a detailed NMR spectroscopic examination using state of the art solid-state NMR techniques, we found the local environment around the [P10] cages of the F3m model to be the correct description of the Ag3SnCuP10 structure. A possible Cu/Ag or Ag/Sn disorder in the [Ag3Sn] heterocluster and within the copper substructure was excluded by Mössbauer spectroscopic investigations and NMR measurements.

show abstract

“…Soc., 88, 4625 (1966). (7) This proposal is based on the fact that crystalline tetrakis [iodo(trin-butylphosphine)copper(I)], which has structure 8 (R = I),8 is also tetrameric in benzene solution.9 (8) A. F.…”

mentioning

confidence: 99%