Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate: Rb2V3P4O17

Kwang‐Hwa ‐H Lii; Yau‐Pey ‐P Wang; Chih‐Yi ‐Y Chneg; Sue‐Lein ‐L Wang; Huan‐Chiu ‐C Ku

doi:10.1002/jccs.199000019

Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate: Rb₂V₃P₄O₁₇

Kwang‐Hwa ‐H Lii, Yau‐Pey ‐P Wang, Chih‐Yi ‐Y Chneg, Sue‐Lein ‐L Wang, Huan‐Chiu ‐C Ku

化學學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

26 引文斯高帕斯（Scopus）

摘要

The crystal structure of Rb₂V₃P₄O₁₇ has been determined from single‐crystal X‐ray diffraction data. Rb₂V₃P₄O₁₇ crystallizes in the orthorhombic space group Pnma (No. 62) with a = 17.502(7), b = 7.292(2), c = 11.399(6) Å³, V = 1455(1) Å³, Z=4, R=0.0295, R_W = 0.0320 for 1129 unique reflections with I > 2.5 σ(I). The structure contains intersecting tunnels where the Rb⁺ cations are located. The framework can be described as consisting of V²O₁₀ units formed from one VO₅ square pyramid and one VO₆ octahedron sharing a corner, and infinite chains of corner‐shared VO₆ octahedra, which are linked in three dimensions by pyrophosphate groups. The structural formula is Rb₂(VO)₃(P₂O₇)₂. A single‐phase product can be obtained by heating appropriate amounts of Rb₄V₂O₇, VO₂, V, and P₂O₅ in an evacuated fused silica tube at 950°C. Powder magnetic susceptibility data confirm the presence of V⁴⁺ (d¹) ions without magnetic ordering down to 3 K.

原文	???core.languages.en_GB???
頁（從 - 到）	141-149
頁數	9
期刊	Journal of the Chinese Chemical Society
卷	37
發行號	2
DOIs	https://doi.org/10.1002/jccs.199000019
出版狀態	已出版 - 4月 1990

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10.1002/jccs.199000019

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title = "Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate: Rb2V3P4O17",

abstract = "The crystal structure of Rb2V3P4O17 has been determined from single‐crystal X‐ray diffraction data. Rb2V3P4O17 crystallizes in the orthorhombic space group Pnma (No. 62) with a = 17.502(7), b = 7.292(2), c = 11.399(6) {\AA}3, V = 1455(1) {\AA}3, Z=4, R=0.0295, RW = 0.0320 for 1129 unique reflections with I > 2.5 σ(I). The structure contains intersecting tunnels where the Rb+ cations are located. The framework can be described as consisting of V2O10 units formed from one VO5 square pyramid and one VO6 octahedron sharing a corner, and infinite chains of corner‐shared VO6 octahedra, which are linked in three dimensions by pyrophosphate groups. The structural formula is Rb2(VO)3(P2O7)2. A single‐phase product can be obtained by heating appropriate amounts of Rb4V2O7, VO2, V, and P2O5 in an evacuated fused silica tube at 950°C. Powder magnetic susceptibility data confirm the presence of V4+ (d1) ions without magnetic ordering down to 3 K.",

keywords = "Crystal Structure, Magnetic Properties, RbVPO, Vanadium Phosphate",

author = "Lii, {Kwang‐Hwa ‐H} and Wang, {Yau‐Pey ‐P} and Chneg, {Chih‐Yi ‐Y} and Wang, {Sue‐Lein ‐L} and Ku, {Huan‐Chiu ‐C}",

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T1 - Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate

T2 - Rb2V3P4O17

AU - Lii, Kwang‐Hwa ‐H

AU - Wang, Yau‐Pey ‐P

AU - Chneg, Chih‐Yi ‐Y

AU - Wang, Sue‐Lein ‐L

AU - Ku, Huan‐Chiu ‐C

PY - 1990/4

Y1 - 1990/4

N2 - The crystal structure of Rb2V3P4O17 has been determined from single‐crystal X‐ray diffraction data. Rb2V3P4O17 crystallizes in the orthorhombic space group Pnma (No. 62) with a = 17.502(7), b = 7.292(2), c = 11.399(6) Å3, V = 1455(1) Å3, Z=4, R=0.0295, RW = 0.0320 for 1129 unique reflections with I > 2.5 σ(I). The structure contains intersecting tunnels where the Rb+ cations are located. The framework can be described as consisting of V2O10 units formed from one VO5 square pyramid and one VO6 octahedron sharing a corner, and infinite chains of corner‐shared VO6 octahedra, which are linked in three dimensions by pyrophosphate groups. The structural formula is Rb2(VO)3(P2O7)2. A single‐phase product can be obtained by heating appropriate amounts of Rb4V2O7, VO2, V, and P2O5 in an evacuated fused silica tube at 950°C. Powder magnetic susceptibility data confirm the presence of V4+ (d1) ions without magnetic ordering down to 3 K.

AB - The crystal structure of Rb2V3P4O17 has been determined from single‐crystal X‐ray diffraction data. Rb2V3P4O17 crystallizes in the orthorhombic space group Pnma (No. 62) with a = 17.502(7), b = 7.292(2), c = 11.399(6) Å3, V = 1455(1) Å3, Z=4, R=0.0295, RW = 0.0320 for 1129 unique reflections with I > 2.5 σ(I). The structure contains intersecting tunnels where the Rb+ cations are located. The framework can be described as consisting of V2O10 units formed from one VO5 square pyramid and one VO6 octahedron sharing a corner, and infinite chains of corner‐shared VO6 octahedra, which are linked in three dimensions by pyrophosphate groups. The structural formula is Rb2(VO)3(P2O7)2. A single‐phase product can be obtained by heating appropriate amounts of Rb4V2O7, VO2, V, and P2O5 in an evacuated fused silica tube at 950°C. Powder magnetic susceptibility data confirm the presence of V4+ (d1) ions without magnetic ordering down to 3 K.

KW - Crystal Structure

KW - Magnetic Properties

KW - RbVPO

KW - Vanadium Phosphate

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DO - 10.1002/jccs.199000019

M3 - 期刊論文

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JO - Journal of the Chinese Chemical Society

JF - Journal of the Chinese Chemical Society

SN - 0009-4536

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Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate: Rb2V3P4O17

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Crystal Structure and Magnetic Properties of a Vanadium (IV) Pyrophosphate: Rb₂V₃P₄O₁₇