Synthesis and structure of [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF

Perumal Sekar; James A. Ibers

doi:10.1016/S0020-1693(02)00698-9

Synthesis and structure of [Co₆(μ₃-Se)_5.18(μ₃-Te) _2.82(PEt₃)₆]·DMF

Perumal Sekar, James A. Ibers^*

^*Corresponding author for this work

Chemistry

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

1 Scopus citations

Abstract

The reaction of [PPh₄]₃[Co₃(Se₄)₆] with TePEt₃ in dimethyformamide at 20°C in the presence of PEt₃ gives the molecular cluster [Co₆(μ₃-Se)_5.18(μ₃-Te) _2.82(PEt₃)₆]·DMF. The cluster has been characterized by single-crystal X-ray diffraction (XRD) methods. It crystallizes with three formula units in space group R3̄ of the trigonal system in a cell of dimensions at T=153 K of a=17.274(2) Å, c=19.384(4) Å, γ=120°. The cluster [Co₆(μ₃-Se)_5.18(μ₃-Te) _2.82(PEt₃)₆]·DMF consists of an octahedron of Co atoms with all the faces symmetrically capped by μ₃-Se or μ₃-Te atoms and each Co atom bonded to a PEt₃ group to provide a distorted square-pyramidal environment. These μ₃-Se and μ₃-Te atoms are disordered as are the solvate DMF molecules.

Original language	English (US)
Pages (from-to)	123-126
Number of pages	4
Journal	Inorganica Chimica Acta
Volume	332
Issue number	1
DOIs	https://doi.org/10.1016/S0020-1693(02)00698-9
State	Published - Apr 17 2002

Keywords

Chalcogens
Cobalt cluster
Crystal structures

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/S0020-1693(02)00698-9

Cite this

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title = "Synthesis and structure of [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF",

abstract = "The reaction of [PPh4]3[Co3(Se4)6] with TePEt3 in dimethyformamide at 20°C in the presence of PEt3 gives the molecular cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF. The cluster has been characterized by single-crystal X-ray diffraction (XRD) methods. It crystallizes with three formula units in space group R{\=3} of the trigonal system in a cell of dimensions at T=153 K of a=17.274(2) {\AA}, c=19.384(4) {\AA}, γ=120°. The cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF consists of an octahedron of Co atoms with all the faces symmetrically capped by μ3-Se or μ3-Te atoms and each Co atom bonded to a PEt3 group to provide a distorted square-pyramidal environment. These μ3-Se and μ3-Te atoms are disordered as are the solvate DMF molecules.",

keywords = "Chalcogens, Cobalt cluster, Crystal structures",

author = "Perumal Sekar and Ibers, {James A.}",

note = "Funding Information: This work was supported by the US National Science Foundation Grant CHE-9819385.",

year = "2002",

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doi = "10.1016/S0020-1693(02)00698-9",

language = "English (US)",

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AU - Sekar, Perumal

AU - Ibers, James A.

N1 - Funding Information: This work was supported by the US National Science Foundation Grant CHE-9819385.

PY - 2002/4/17

Y1 - 2002/4/17

N2 - The reaction of [PPh4]3[Co3(Se4)6] with TePEt3 in dimethyformamide at 20°C in the presence of PEt3 gives the molecular cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF. The cluster has been characterized by single-crystal X-ray diffraction (XRD) methods. It crystallizes with three formula units in space group R3̄ of the trigonal system in a cell of dimensions at T=153 K of a=17.274(2) Å, c=19.384(4) Å, γ=120°. The cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF consists of an octahedron of Co atoms with all the faces symmetrically capped by μ3-Se or μ3-Te atoms and each Co atom bonded to a PEt3 group to provide a distorted square-pyramidal environment. These μ3-Se and μ3-Te atoms are disordered as are the solvate DMF molecules.

AB - The reaction of [PPh4]3[Co3(Se4)6] with TePEt3 in dimethyformamide at 20°C in the presence of PEt3 gives the molecular cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF. The cluster has been characterized by single-crystal X-ray diffraction (XRD) methods. It crystallizes with three formula units in space group R3̄ of the trigonal system in a cell of dimensions at T=153 K of a=17.274(2) Å, c=19.384(4) Å, γ=120°. The cluster [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF consists of an octahedron of Co atoms with all the faces symmetrically capped by μ3-Se or μ3-Te atoms and each Co atom bonded to a PEt3 group to provide a distorted square-pyramidal environment. These μ3-Se and μ3-Te atoms are disordered as are the solvate DMF molecules.

KW - Chalcogens

KW - Cobalt cluster

KW - Crystal structures

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Synthesis and structure of [Co₆(μ₃-Se)_5.18(μ₃-Te) _2.82(PEt₃)₆]·DMF

Abstract

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ASJC Scopus subject areas

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CCDC 171697: Experimental Crystal Structure Determination

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Synthesis and structure of [Co6(μ3-Se)5.18(μ3-Te) 2.82(PEt3)6]·DMF

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Keywords

ASJC Scopus subject areas

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CCDC 171697: Experimental Crystal Structure Determination

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Synthesis and structure of [Co₆(μ₃-Se)_5.18(μ₃-Te) _2.82(PEt₃)₆]·DMF