Abstract
Bi metal dissolves in excess molten phosphorus selenide at 500 °C to yield black, rodlike, air- and water-stable β-Bi4(P2Se6)3 crystals. The phase crystallizes in the triclinic space group P1̄ (No. 2) with the room-temperature cell parameters a = 12.2303(8) Å, b = 6.7640(4) Å, c = 17.866 Å, α = 90.493(6)°, β = 94.133(6)°, and γ = 91.163(6)°. The new structure is a complicated, three-dimensional framework built from [Bi4Se22] ribbons connected to each other by sharing selenium atoms. The [P2Se6]4- ethane-like units are found inside and between the [Bi4Se22] ribbons. The compound is a semiconductor with a band gap of 1.32 eV. It melts with decomposition at 512 °C, converting partially to Bi2Se3 and a PxSey glassy material. Far-IR and Raman spectra show characteristic stretches for the [P2Se6]4- ligand and Bi-Se vibrations. The structural and chemical relationships of this compound with the α-form are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 4795-4800 |
| Number of pages | 6 |
| Journal | Inorganic Chemistry |
| Volume | 38 |
| Issue number | 21 |
| Publication status | Published - 1999 |
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ASJC Scopus subject areas
- Inorganic Chemistry
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β-Bi4(P2Se6)3 : A new ternary selenophosphate obtained in a P2Se5 flux. / Aitken, Jennifer A.; Brown, Shannon; Chondroudis, Konstantinos; Jobic, Stéphane; Brec, Raymond; Kanatzidis, Mercouri G.
In: Inorganic Chemistry, Vol. 38, No. 21, 1999, p. 4795-4800.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - β-Bi4(P2Se6)3
T2 - A new ternary selenophosphate obtained in a P2Se5 flux
AU - Aitken, Jennifer A.
AU - Brown, Shannon
AU - Chondroudis, Konstantinos
AU - Jobic, Stéphane
AU - Brec, Raymond
AU - Kanatzidis, Mercouri G
PY - 1999
Y1 - 1999
N2 - Bi metal dissolves in excess molten phosphorus selenide at 500 °C to yield black, rodlike, air- and water-stable β-Bi4(P2Se6)3 crystals. The phase crystallizes in the triclinic space group P1̄ (No. 2) with the room-temperature cell parameters a = 12.2303(8) Å, b = 6.7640(4) Å, c = 17.866 Å, α = 90.493(6)°, β = 94.133(6)°, and γ = 91.163(6)°. The new structure is a complicated, three-dimensional framework built from [Bi4Se22] ribbons connected to each other by sharing selenium atoms. The [P2Se6]4- ethane-like units are found inside and between the [Bi4Se22] ribbons. The compound is a semiconductor with a band gap of 1.32 eV. It melts with decomposition at 512 °C, converting partially to Bi2Se3 and a PxSey glassy material. Far-IR and Raman spectra show characteristic stretches for the [P2Se6]4- ligand and Bi-Se vibrations. The structural and chemical relationships of this compound with the α-form are discussed.
AB - Bi metal dissolves in excess molten phosphorus selenide at 500 °C to yield black, rodlike, air- and water-stable β-Bi4(P2Se6)3 crystals. The phase crystallizes in the triclinic space group P1̄ (No. 2) with the room-temperature cell parameters a = 12.2303(8) Å, b = 6.7640(4) Å, c = 17.866 Å, α = 90.493(6)°, β = 94.133(6)°, and γ = 91.163(6)°. The new structure is a complicated, three-dimensional framework built from [Bi4Se22] ribbons connected to each other by sharing selenium atoms. The [P2Se6]4- ethane-like units are found inside and between the [Bi4Se22] ribbons. The compound is a semiconductor with a band gap of 1.32 eV. It melts with decomposition at 512 °C, converting partially to Bi2Se3 and a PxSey glassy material. Far-IR and Raman spectra show characteristic stretches for the [P2Se6]4- ligand and Bi-Se vibrations. The structural and chemical relationships of this compound with the α-form are discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0003184362&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0003184362
VL - 38
SP - 4795
EP - 4800
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 21
ER -