Synthetic Cu{sub 0.507(5)}Pb{sub 8.73(9)}Sb{sub 8.15(8)}I{sub 1.6}S{sub 20.0(2)} nanowires

Journal Article · Sat Jan 15 00:00:00 EST 2005 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2004.10.036· OSTI ID:20721709

Kryukova, Galina N ^[1]; Heuer, Matthias ^[2]; Wagner, Gerald ^[2]; Doering, Thomas ^[2]; Bente, Klaus ^[2]

---

1. Boreskov Institute of Catalysis, pr. Lavrentieva 5, 630090 Novosibirsk (Russian Federation)
2. Institute of Mineralogy, Crystallography and Materials Science, University of Leipzig, Scharnhorststr. 20, 04275 Leipzig (Germany)

Nanowires of an iodine containing Pb-Sb-sulfosalt have been synthesized by chemical vapor transport. Their structure was studied using high-resolution transmission electron microscopy and X-ray powder diffraction. The lattice parameters show values equal to a=4.9801(4)nm, b=0.41132(8)nm (with two-fold superstructure), c=2.1989(1)nm and {beta}=99.918(6){sup o}. These parameters and the results of a multislice simulation are in good agreement with the mineral pillaite, Cu{sub 0.10}Pb{sub 9.16}Sb{sub 9.84}S{sub 22.94}Cl{sub 1.06}O{sub 0.5} (space group C2/m, a=4.949(1)nm, b=0.41259(8)nm, c=2.1828(4)nm, and {beta}=99.62(3){sup o}). Microprobe and EDX analyses yielded a chemical composition of Cu{sub 0.507(5)}Pb{sub 8.73(9)}Sb{sub 8.15(8)}I{sub 1.6}S{sub 20.0(2)} which is close to natural pillaite but contains no oxygen and iodine instead of chlorine. The structure of the investigated material is based on chains of M-S polyhedra (M=Pb or Sb) typical for the architecture of sulfosalts implying iodine atoms in trigonal prismatic coordination with Pb atoms from the M-S polyhedra of neighboring chains. The [010] superstructure of the specimen was found to be unstable under electron beam irradiation with a rapid decrease of the b lattice parameter from 0.8 to 0.4nm within 5min.

• OSTI ID: 20721709
• Journal Information: Journal of Solid State Chemistry, Vol. 178, Issue 1; Other Information: DOI: 10.1016/j.jssc.2004.10.036; PII: S0022-4596(04)00579-1; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIMONY COMPOUNDS
CHEMICAL COMPOSITION
COPPER COMPOUNDS
ELECTRON BEAMS
IODINE COMPOUNDS
IRRADIATION
LATTICE PARAMETERS
LEAD COMPOUNDS
MONOCLINIC LATTICES
QUANTUM WIRES
SPACE GROUPS
SULFIDES
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
WIRES
X-RAY DIFFRACTION