Structure determination, magnetic and optical properties of a new chromium(II) thioantimonate, [Cr((NH2CH2CH2)3N)]Sb4S7

Anthony V. Powell; R. J E Lees; Ann M. Chippindale

doi:10.1016/j.jpcs.2007.11.014

Structure determination, magnetic and optical properties of a new chromium(II) thioantimonate, [Cr((NH₂CH₂CH₂)₃N)]Sb₄S₇

Anthony V. Powell, R. J E Lees, Ann M. Chippindale

School of Engineering & Physical Sciences

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

55 Citations (Scopus)

Abstract

The chromium(II) antimony(III) sulphide, [Cr((NH₂CH₂CH₂)₃N)]Sb₄S₇, was synthesised under solvothermal conditions from the reaction of Sb₂S₃, Cr and S dissolved in tris(2-aminoethyl)amine (tren) at 438 K. The products were characterised by single-crystal X-ray diffraction, elemental analysis, SQUID magnetometry and diffuse reflectance spectroscopy. The compound crystallises in the monoclinic space group P2₁/n with a=7.9756(7), b=10.5191(9), c=25.880(2) Å and ß=90.864(5)°. Alternating SbS₃^3- trigonal pyramids and Sb₃S₆^3- semi-cubes generate Sb₄S₇^2- chains which are directly bonded to Cr(tren)²⁺ pendant units. The effective magnetic moment of 4.94(6)µ_B shows a negligible orbital contribution, in agreement with expectations for Cr(II):d⁴ in a ⁵A ground state. The measured band gap of 2.14(3) eV is consistent with a correlation between optical band gap and framework density that is established from analysis of a wide range of antimony sulphides. © 2007 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1000-1006
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	69
Issue number	4
DOIs	https://doi.org/10.1016/j.jpcs.2007.11.014
Publication status	Published - Apr 2008

Keywords

A. Chalcogenides
B. Crystal growth
C. X-ray diffraction
D. Magnetic properties
D. Optical properties

Access to Document

10.1016/j.jpcs.2007.11.014

Cite this

@article{e255c2b3abc54b83bcee57fb4bfb7fbc,

title = "Structure determination, magnetic and optical properties of a new chromium(II) thioantimonate, [Cr((NH2CH2CH2)3N)]Sb4S7",

abstract = "The chromium(II) antimony(III) sulphide, [Cr((NH2CH2CH2)3N)]Sb4S7, was synthesised under solvothermal conditions from the reaction of Sb2S3, Cr and S dissolved in tris(2-aminoethyl)amine (tren) at 438 K. The products were characterised by single-crystal X-ray diffraction, elemental analysis, SQUID magnetometry and diffuse reflectance spectroscopy. The compound crystallises in the monoclinic space group P21/n with a=7.9756(7), b=10.5191(9), c=25.880(2) {\AA} and {\ss}=90.864(5)°. Alternating SbS33- trigonal pyramids and Sb3S63- semi-cubes generate Sb4S72- chains which are directly bonded to Cr(tren)2+ pendant units. The effective magnetic moment of 4.94(6)µB shows a negligible orbital contribution, in agreement with expectations for Cr(II):d4 in a 5A ground state. The measured band gap of 2.14(3) eV is consistent with a correlation between optical band gap and framework density that is established from analysis of a wide range of antimony sulphides. {\textcopyright} 2007 Elsevier Ltd. All rights reserved.",

keywords = "A. Chalcogenides, B. Crystal growth, C. X-ray diffraction, D. Magnetic properties, D. Optical properties",

author = "Powell, {Anthony V.} and Lees, {R. J E} and Chippindale, {Ann M.}",

year = "2008",

month = apr,

doi = "10.1016/j.jpcs.2007.11.014",

language = "English",

volume = "69",

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journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

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TY - JOUR

T1 - Structure determination, magnetic and optical properties of a new chromium(II) thioantimonate, [Cr((NH2CH2CH2)3N)]Sb4S7

AU - Powell, Anthony V.

AU - Lees, R. J E

AU - Chippindale, Ann M.

PY - 2008/4

Y1 - 2008/4

N2 - The chromium(II) antimony(III) sulphide, [Cr((NH2CH2CH2)3N)]Sb4S7, was synthesised under solvothermal conditions from the reaction of Sb2S3, Cr and S dissolved in tris(2-aminoethyl)amine (tren) at 438 K. The products were characterised by single-crystal X-ray diffraction, elemental analysis, SQUID magnetometry and diffuse reflectance spectroscopy. The compound crystallises in the monoclinic space group P21/n with a=7.9756(7), b=10.5191(9), c=25.880(2) Å and ß=90.864(5)°. Alternating SbS33- trigonal pyramids and Sb3S63- semi-cubes generate Sb4S72- chains which are directly bonded to Cr(tren)2+ pendant units. The effective magnetic moment of 4.94(6)µB shows a negligible orbital contribution, in agreement with expectations for Cr(II):d4 in a 5A ground state. The measured band gap of 2.14(3) eV is consistent with a correlation between optical band gap and framework density that is established from analysis of a wide range of antimony sulphides. © 2007 Elsevier Ltd. All rights reserved.

AB - The chromium(II) antimony(III) sulphide, [Cr((NH2CH2CH2)3N)]Sb4S7, was synthesised under solvothermal conditions from the reaction of Sb2S3, Cr and S dissolved in tris(2-aminoethyl)amine (tren) at 438 K. The products were characterised by single-crystal X-ray diffraction, elemental analysis, SQUID magnetometry and diffuse reflectance spectroscopy. The compound crystallises in the monoclinic space group P21/n with a=7.9756(7), b=10.5191(9), c=25.880(2) Å and ß=90.864(5)°. Alternating SbS33- trigonal pyramids and Sb3S63- semi-cubes generate Sb4S72- chains which are directly bonded to Cr(tren)2+ pendant units. The effective magnetic moment of 4.94(6)µB shows a negligible orbital contribution, in agreement with expectations for Cr(II):d4 in a 5A ground state. The measured band gap of 2.14(3) eV is consistent with a correlation between optical band gap and framework density that is established from analysis of a wide range of antimony sulphides. © 2007 Elsevier Ltd. All rights reserved.

KW - A. Chalcogenides

KW - B. Crystal growth

KW - C. X-ray diffraction

KW - D. Magnetic properties

KW - D. Optical properties

U2 - 10.1016/j.jpcs.2007.11.014

DO - 10.1016/j.jpcs.2007.11.014

M3 - Article

SN - 0022-3697

VL - 69

SP - 1000

EP - 1006

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 4