Synthesis, Crystal and Electronic Structure of La2SiP4
Journal Article
·
· Zeitschrift fuer Anorganische und Allgemeine Chemie
- Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
La2SiP4 (mP-28, Z=4, Wyckoff sequence e7, space group P21/c (No. 14), a=10.8230(6) Å, b=7.5208(4) Å, c=7.9189(4) Å, and β=105.389(2)°) which crystallizes in the La2CuS4 structure type is reported here. Instead of isolated CuS3 triangles bridged by disulfide anions, in the crystal structure of La2SiP4, one-dimensional zig-zag chains composed of SiP4 tetrahedra connected by P–P bonds are present. Lanthanum cations fill the voids between the chains and are coordinated by either 9P or 8P+Si atoms. La2SiP4 is a narrow bandgap semiconductor with calculated and measured optical bandgaps of 0.35 eV and 0.85(1) eV, respectively.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1764375
- Alternate ID(s):
- OSTI ID: 22982330
- Report Number(s):
- IS--J-10,387
- Journal Information:
- Zeitschrift fuer Anorganische und Allgemeine Chemie, Journal Name: Zeitschrift fuer Anorganische und Allgemeine Chemie Journal Issue: 2-3 Vol. 647; ISSN 0044-2313
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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