TY - JOUR
T1 - Polythioantimonate flux synthesis of the low-dimensional compounds A2AuSbS4 (A=Rb, Cs)
AU - Hanko, Jason A.
AU - Kanatzidis, Mercouri G.
N1 - Funding Information:
Financial support from the National Science Foundation DMR-9527347 and the Center for Fundamental Materials Research is gratefully acknowledged. MGK is an A.P. Sloan Foundation, and a Camille and Henry Dreyfus Teacher Scholar 1993–98. This work made use of the SEM facilities of the Center for Electron Optics at Michigan State University.
PY - 1998/10/23
Y1 - 1998/10/23
N2 - The reaction of Au with a molten mixture of A2S/Sb/S (A=Rb, Cs) produced the isostructural quaternary compounds A2AuSbS4. The yellow-brown crystals of Rb2AuSbS4 (I) and yellow crystals of Cs2AuSbS4 (II) are stable in air and water for several days and for over a month for I and II, respectively. The structure of Rb2AuSbS4 crystallizes in the space group Pbcm (#57) and at 23°C a=6.804(3) Å, b=20.127(4) Å, c=7.195(4) Å, V=985(1) Å3, Z=8. Final R/Rw =4.5/6.6%. This structure consists of one-dimensional [AuSbS4]2n-n chains separated by A+ cations. The chains are comprised of Au+ cations linearly coordinated to [SbS4]3- tetrahedra. The compounds were characterized with differential thermal analysis (DTA), far-IR, Raman, and solid-state UV/vis diffuse reflectance spectroscopy.
AB - The reaction of Au with a molten mixture of A2S/Sb/S (A=Rb, Cs) produced the isostructural quaternary compounds A2AuSbS4. The yellow-brown crystals of Rb2AuSbS4 (I) and yellow crystals of Cs2AuSbS4 (II) are stable in air and water for several days and for over a month for I and II, respectively. The structure of Rb2AuSbS4 crystallizes in the space group Pbcm (#57) and at 23°C a=6.804(3) Å, b=20.127(4) Å, c=7.195(4) Å, V=985(1) Å3, Z=8. Final R/Rw =4.5/6.6%. This structure consists of one-dimensional [AuSbS4]2n-n chains separated by A+ cations. The chains are comprised of Au+ cations linearly coordinated to [SbS4]3- tetrahedra. The compounds were characterized with differential thermal analysis (DTA), far-IR, Raman, and solid-state UV/vis diffuse reflectance spectroscopy.
KW - Polythioantimonate flux synthesis
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U2 - 10.1016/S0925-8388(98)00695-1
DO - 10.1016/S0925-8388(98)00695-1
M3 - Article
AN - SCOPUS:0032179564
VL - 280
SP - 71
EP - 76
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -