[Cr(C6H18N4)(SbS3)], a chromium complex containing an unusual bidentate SbS33- ligand

Paz Vaqueiro; Ann M. Chippindale; Anthony V. Powell

[Cr(C₆H₁₈N₄)(SbS₃)], a chromium complex containing an unusual bidentate SbS₃^3- ligand

Paz Vaqueiro, Ann M. Chippindale, Anthony V. Powell

School of Engineering & Physical Sciences

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

34 Citations (Scopus)

Abstract

A new chromium-antimony-sulfide, [Cr(C₆H₁₈N ₄)(SbS₃)], has been synthesised under solvothermal conditions from CrCl₃ · 6H₂O, Sb₂S ₃ and S in the presence of triethylenetetramine at 433 K and characterised by single-crystal X-ray diffraction, thermogravimetry, elemental analysis and SQUID magnetometry. The structure of [Cr(C₆H ₁₈N₄)(SbS₃)] consists of neutral mononuclear chromium-centred complexes, in which the Cr³⁺ is chelated by one tetradentate triethylenetetramine molecule and a bidentate SbS₃^3- ligand, yielding distorted octahedral coordination. Intermolecular hydrogen bonds link individual molecules into layers within the ac plane. Within a layer, molecules occur in pairs with each member related by a centre of inversion. The Cr?Cr separation within a pair is approximately 6.5 Å. Magnetic susceptibility data reveal Curie-Weiss behaviour with µ_eff = 3.819(3) µ_B and a negligible Weiss constant, indicative of non-interacting Cr³⁺ ions. © 2003 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	2839-2845
Number of pages	7
Journal	Polyhedron
Volume	22
Issue number	20
Publication status	Published - 1 Sept 2003

Keywords

Chromium thioantimonates
Crystal structure
Solvothermal synthesis

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title = "[Cr(C6H18N4)(SbS3)], a chromium complex containing an unusual bidentate SbS33- ligand",

abstract = "A new chromium-antimony-sulfide, [Cr(C6H18N 4)(SbS3)], has been synthesised under solvothermal conditions from CrCl3 · 6H2O, Sb2S 3 and S in the presence of triethylenetetramine at 433 K and characterised by single-crystal X-ray diffraction, thermogravimetry, elemental analysis and SQUID magnetometry. The structure of [Cr(C6H 18N4)(SbS3)] consists of neutral mononuclear chromium-centred complexes, in which the Cr3+ is chelated by one tetradentate triethylenetetramine molecule and a bidentate SbS33- ligand, yielding distorted octahedral coordination. Intermolecular hydrogen bonds link individual molecules into layers within the ac plane. Within a layer, molecules occur in pairs with each member related by a centre of inversion. The Cr?Cr separation within a pair is approximately 6.5 {\AA}. Magnetic susceptibility data reveal Curie-Weiss behaviour with µeff = 3.819(3) µB and a negligible Weiss constant, indicative of non-interacting Cr3+ ions. {\textcopyright} 2003 Elsevier Science Ltd. All rights reserved.",

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T1 - [Cr(C6H18N4)(SbS3)], a chromium complex containing an unusual bidentate SbS33- ligand

AU - Vaqueiro, Paz

AU - Chippindale, Ann M.

AU - Powell, Anthony V.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - A new chromium-antimony-sulfide, [Cr(C6H18N 4)(SbS3)], has been synthesised under solvothermal conditions from CrCl3 · 6H2O, Sb2S 3 and S in the presence of triethylenetetramine at 433 K and characterised by single-crystal X-ray diffraction, thermogravimetry, elemental analysis and SQUID magnetometry. The structure of [Cr(C6H 18N4)(SbS3)] consists of neutral mononuclear chromium-centred complexes, in which the Cr3+ is chelated by one tetradentate triethylenetetramine molecule and a bidentate SbS33- ligand, yielding distorted octahedral coordination. Intermolecular hydrogen bonds link individual molecules into layers within the ac plane. Within a layer, molecules occur in pairs with each member related by a centre of inversion. The Cr?Cr separation within a pair is approximately 6.5 Å. Magnetic susceptibility data reveal Curie-Weiss behaviour with µeff = 3.819(3) µB and a negligible Weiss constant, indicative of non-interacting Cr3+ ions. © 2003 Elsevier Science Ltd. All rights reserved.

AB - A new chromium-antimony-sulfide, [Cr(C6H18N 4)(SbS3)], has been synthesised under solvothermal conditions from CrCl3 · 6H2O, Sb2S 3 and S in the presence of triethylenetetramine at 433 K and characterised by single-crystal X-ray diffraction, thermogravimetry, elemental analysis and SQUID magnetometry. The structure of [Cr(C6H 18N4)(SbS3)] consists of neutral mononuclear chromium-centred complexes, in which the Cr3+ is chelated by one tetradentate triethylenetetramine molecule and a bidentate SbS33- ligand, yielding distorted octahedral coordination. Intermolecular hydrogen bonds link individual molecules into layers within the ac plane. Within a layer, molecules occur in pairs with each member related by a centre of inversion. The Cr?Cr separation within a pair is approximately 6.5 Å. Magnetic susceptibility data reveal Curie-Weiss behaviour with µeff = 3.819(3) µB and a negligible Weiss constant, indicative of non-interacting Cr3+ ions. © 2003 Elsevier Science Ltd. All rights reserved.

KW - Chromium thioantimonates

KW - Crystal structure

KW - Solvothermal synthesis

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M3 - Article

VL - 22

SP - 2839

EP - 2845

JO - Polyhedron

JF - Polyhedron

IS - 20

ER -

[Cr(C₆H₁₈N₄)(SbS₃)], a chromium complex containing an unusual bidentate SbS₃^3- ligand

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