Structure and magnetic properties of a two-dimensional layered manganese(II) pyrophosphate [NH4]2[Mn3(P 2O7)2(H2O)2]

Lei Shi; Ji Hong Yu; Yi Li; Ru Ren Xu; Song Gao

Structure and magnetic properties of a two-dimensional layered manganese(II) pyrophosphate [NH₄]₂[Mn₃(P ₂O₇)₂(H₂O)₂]

Lei Shi^*, Ji Hong Yu, Yi Li, Ru Ren Xu, Song Gao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A two-dimensional layered manganese(II) pyrophosphate, [NH ₄]₂[Mn₃(P₂O₇) ₂(H₂O)₂] (1), has been synthesized hydrothermally. Its structure is determined by single-crystal X-ray diffraction analysis. Its structure is built up by MnO₆ octahedra and P ₂O₇ units, with ammonium NH₄⁺ cations residing in the interlayer regions. The manganese pyrophosphate layer consists of infinite chains of cis and trans edge sharing MnO₆ octahedra linked by P₂O₇ units. Magnetic susceptibility measurements show that this compound exhibits ferrimagnetic-like ordering below 3.2 K. Further study shows that there are two possible superexchange pathways via the oxygen anions in Mn²⁺ ions. Owing to the different bridging modes of O^2-, the competition between ferromagnetic interactions and antiferromagnetic interactions in Mn²⁺ ions results in the ferrimagnetic behavior of 1.

Original language	English
Pages (from-to)	245-248
Number of pages	4
Journal	Chinese Journal of Inorganic Chemistry
Volume	21
Issue number	2
Publication status	Published - 1 Feb 2005
Externally published	Yes

Keywords

Crystal structure
Ferrimagnetic-like ordering
Hydrothermal synthesis
Manganese pyrophosphate

Cite this

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title = "Structure and magnetic properties of a two-dimensional layered manganese(II) pyrophosphate [NH4]2[Mn3(P 2O7)2(H2O)2]",

abstract = "A two-dimensional layered manganese(II) pyrophosphate, [NH 4]2[Mn3(P2O7) 2(H2O)2] (1), has been synthesized hydrothermally. Its structure is determined by single-crystal X-ray diffraction analysis. Its structure is built up by MnO6 octahedra and P 2O7 units, with ammonium NH4+ cations residing in the interlayer regions. The manganese pyrophosphate layer consists of infinite chains of cis and trans edge sharing MnO6 octahedra linked by P2O7 units. Magnetic susceptibility measurements show that this compound exhibits ferrimagnetic-like ordering below 3.2 K. Further study shows that there are two possible superexchange pathways via the oxygen anions in Mn2+ ions. Owing to the different bridging modes of O2-, the competition between ferromagnetic interactions and antiferromagnetic interactions in Mn2+ ions results in the ferrimagnetic behavior of 1.",

keywords = "Crystal structure, Ferrimagnetic-like ordering, Hydrothermal synthesis, Manganese pyrophosphate",

author = "Lei Shi and Yu, {Ji Hong} and Yi Li and Xu, {Ru Ren} and Song Gao",

year = "2005",

month = feb,

day = "1",

language = "English",

volume = "21",

pages = "245--248",

journal = "Chinese Journal of Inorganic Chemistry",

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TY - JOUR

T1 - Structure and magnetic properties of a two-dimensional layered manganese(II) pyrophosphate [NH4]2[Mn3(P 2O7)2(H2O)2]

AU - Shi, Lei

AU - Yu, Ji Hong

AU - Li, Yi

AU - Xu, Ru Ren

AU - Gao, Song

PY - 2005/2/1

Y1 - 2005/2/1

N2 - A two-dimensional layered manganese(II) pyrophosphate, [NH 4]2[Mn3(P2O7) 2(H2O)2] (1), has been synthesized hydrothermally. Its structure is determined by single-crystal X-ray diffraction analysis. Its structure is built up by MnO6 octahedra and P 2O7 units, with ammonium NH4+ cations residing in the interlayer regions. The manganese pyrophosphate layer consists of infinite chains of cis and trans edge sharing MnO6 octahedra linked by P2O7 units. Magnetic susceptibility measurements show that this compound exhibits ferrimagnetic-like ordering below 3.2 K. Further study shows that there are two possible superexchange pathways via the oxygen anions in Mn2+ ions. Owing to the different bridging modes of O2-, the competition between ferromagnetic interactions and antiferromagnetic interactions in Mn2+ ions results in the ferrimagnetic behavior of 1.

AB - A two-dimensional layered manganese(II) pyrophosphate, [NH 4]2[Mn3(P2O7) 2(H2O)2] (1), has been synthesized hydrothermally. Its structure is determined by single-crystal X-ray diffraction analysis. Its structure is built up by MnO6 octahedra and P 2O7 units, with ammonium NH4+ cations residing in the interlayer regions. The manganese pyrophosphate layer consists of infinite chains of cis and trans edge sharing MnO6 octahedra linked by P2O7 units. Magnetic susceptibility measurements show that this compound exhibits ferrimagnetic-like ordering below 3.2 K. Further study shows that there are two possible superexchange pathways via the oxygen anions in Mn2+ ions. Owing to the different bridging modes of O2-, the competition between ferromagnetic interactions and antiferromagnetic interactions in Mn2+ ions results in the ferrimagnetic behavior of 1.

KW - Crystal structure

KW - Ferrimagnetic-like ordering

KW - Hydrothermal synthesis

KW - Manganese pyrophosphate

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M3 - Article

AN - SCOPUS:13244260893

SN - 1001-4861

VL - 21

SP - 245

EP - 248

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 2

ER -

Structure and magnetic properties of a two-dimensional layered manganese(II) pyrophosphate [NH₄]₂[Mn₃(P ₂O₇)₂(H₂O)₂]

Abstract

Keywords

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