TY - JOUR
T1 - Synthesis and characterization of KV3P4O16
T2 - A new mixed-valence vanadium(III,IV,IV) disphosphate
AU - Lee, Chi Shen
AU - Lii, Kwang Hwa
N1 - Funding Information:
Support for this study by the National Science Council and the Institute of Chemistry Academia Sinica is gratefully acknowledged. We thank Mr. Wen at Academia Sinica for collecting single-crystal X-ray diffraction data and Mr. Cheng at the Department of Physics, National Tsing Hua University for collecting magnetic susceptibility data.
PY - 1991/6
Y1 - 1991/6
N2 - A new mixed-valence vanadium diphosphate, KV3P4O16, was synthesized by solid-state reaction and its structure was determined from single-crystal X-ray diffraction data. Brown crystal of KV3P4O16 crystallizes in the monoclinic space group P21/m (No. 11) with a = 5.201(1), b = 12.661(2), c = 9.476(2) Å, β = 94.11(2)°, V = 622.4(2) Å3, Z = 2, R = 0.0293, Rw = 0.0333 for 1108 unique reflections with I > 2.5 σ(I). Edge-sharing pairs of VO6 octahedra are connected by sharing corners to form strings along the b axis. The strings formally contain V3.5+ (one V3+ and one V4+) and are connected through P2O7 groups such that layers in the ab plane are formed. Adjacent layers are linked in three dimensions by VO2+ vanadyl groups. The structure consists of tunnels where the K+ cations are located. The structural formula is K(V2O)(VO)(P2O7)2. Variable-temperature powder magnetic susceptibility data confirm the presence of one V3+ and two V4+ ions per formula unit.
AB - A new mixed-valence vanadium diphosphate, KV3P4O16, was synthesized by solid-state reaction and its structure was determined from single-crystal X-ray diffraction data. Brown crystal of KV3P4O16 crystallizes in the monoclinic space group P21/m (No. 11) with a = 5.201(1), b = 12.661(2), c = 9.476(2) Å, β = 94.11(2)°, V = 622.4(2) Å3, Z = 2, R = 0.0293, Rw = 0.0333 for 1108 unique reflections with I > 2.5 σ(I). Edge-sharing pairs of VO6 octahedra are connected by sharing corners to form strings along the b axis. The strings formally contain V3.5+ (one V3+ and one V4+) and are connected through P2O7 groups such that layers in the ab plane are formed. Adjacent layers are linked in three dimensions by VO2+ vanadyl groups. The structure consists of tunnels where the K+ cations are located. The structural formula is K(V2O)(VO)(P2O7)2. Variable-temperature powder magnetic susceptibility data confirm the presence of one V3+ and two V4+ ions per formula unit.
UR - http://www.scopus.com/inward/record.url?scp=0006733197&partnerID=8YFLogxK
U2 - 10.1016/0022-4596(91)90344-H
DO - 10.1016/0022-4596(91)90344-H
M3 - 期刊論文
AN - SCOPUS:0006733197
VL - 92
SP - 362
EP - 369
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
IS - 2
ER -