TY - JOUR
T1 - K4In2(PSe5)2(P 2Se6) and Rb3Sn(PSe5)(P2Se6)
T2 - One-Dimensional Compounds with Mixed Selenophosphate Anions
AU - Chondroudis, Konstantinos
AU - Kanatzidis, Mercouri G.
N1 - Funding Information:
Financial support from the National Science Foundation DMR-9527347 is gratefully acknowledged. MGK is an A. P. Sloan Foundation and a Camille and Henry Dreyfus Teacher Scholar, 1993—1998. This work made use of the SEM facilities of the Center for Electron Optics at Michigan State University. The authors are grateful to the X-Ray Crystallographic Laboratory of the University of Minnesota and to Victor G. Young Jr. for collecting the single crystal X-Ray data set for K4In2(PSe5)2(P2Se6).
PY - 1998/2/15
Y1 - 1998/2/15
N2 - The reaction of In with a molten mixture of K2Se/P2Se5/Se yielded brick-red, needle-like crystals of K4In2(PSe5)2(P2Se 6). The reaction of Sn with a molten mixture of Rb2Se/P2Se5/Se yielded black plate-like crystals of Rb3Sn(PSe5)(P2Se6). Both compounds are stable in air and water. K4In2(PSe5)2(P2Se 6) crystallizes in the monoclinic space groupCc(9) witha=11.1564(1) Å,b=22.8771(1) Å,c=12.6525(2) Å,β=109.039(1)°,Z=4, andR/Rw=4.1/4.4%. The one-dimensional structure features [In2(PSe5)2(P2Se6)] 4n-nchains that consist of In2(PSe5)2dimers. These dimers are then bridged along thea-axis by tetradentate [P2Se6]4-units to form the chain. In3+is in an octahedral environment. Rb3Sn(PSe5)(P2Se6) crystallizes in the monoclinic space groupP21/a(14) witha=14.013(2) Å,b=7.3436(8) Å,c=21.983(4) Å,β=106.61(1)°,Z=4, andR/Rw= 3.5/4.4%. The one-dimensional structure features [Sn(PSe5)(P2Se6)]3n- nchains with octahedral Sn4+. The neighboring Sn atoms are connected via tetradentate [P2Se6]4-units to form the chain. The [PSe5]3-act as chelating side groups employing the diselenide "arm" and one of the monoselenide atoms to coordinate to Sn. The compounds were characterized with differential thermal analysis, far-IR, and solid-state UV/vis diffuse reflectance spectroscopy.
AB - The reaction of In with a molten mixture of K2Se/P2Se5/Se yielded brick-red, needle-like crystals of K4In2(PSe5)2(P2Se 6). The reaction of Sn with a molten mixture of Rb2Se/P2Se5/Se yielded black plate-like crystals of Rb3Sn(PSe5)(P2Se6). Both compounds are stable in air and water. K4In2(PSe5)2(P2Se 6) crystallizes in the monoclinic space groupCc(9) witha=11.1564(1) Å,b=22.8771(1) Å,c=12.6525(2) Å,β=109.039(1)°,Z=4, andR/Rw=4.1/4.4%. The one-dimensional structure features [In2(PSe5)2(P2Se6)] 4n-nchains that consist of In2(PSe5)2dimers. These dimers are then bridged along thea-axis by tetradentate [P2Se6]4-units to form the chain. In3+is in an octahedral environment. Rb3Sn(PSe5)(P2Se6) crystallizes in the monoclinic space groupP21/a(14) witha=14.013(2) Å,b=7.3436(8) Å,c=21.983(4) Å,β=106.61(1)°,Z=4, andR/Rw= 3.5/4.4%. The one-dimensional structure features [Sn(PSe5)(P2Se6)]3n- nchains with octahedral Sn4+. The neighboring Sn atoms are connected via tetradentate [P2Se6]4-units to form the chain. The [PSe5]3-act as chelating side groups employing the diselenide "arm" and one of the monoselenide atoms to coordinate to Sn. The compounds were characterized with differential thermal analysis, far-IR, and solid-state UV/vis diffuse reflectance spectroscopy.
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U2 - 10.1006/jssc.1997.7659
DO - 10.1006/jssc.1997.7659
M3 - Article
AN - SCOPUS:0002308053
SN - 0022-4596
VL - 136
SP - 79
EP - 86
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -