Se22-, Se52-, and Se72- Ligands in [NEt4]2[As2Se6], [enH][AsSe6]·2.2.2-cryptand, [NEt4][AsSe8], and [(en)2In(SeAs(Se)Se2)]·en

Donna M. Smith; Michael A. Pell; James A. Ibers

Se₂^2-, Se₅^2-, and Se₇^2- Ligands in [NEt₄]₂[As₂Se₆], [enH][AsSe₆]·2.2.2-cryptand, [NEt₄][AsSe₈], and [(en)₂In(SeAs(Se)Se₂)]·en

Donna M. Smith, Michael A. Pell, James A. Ibers^*

^*Corresponding author for this work

Chemistry

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

37 Scopus citations

Abstract

The extraction in ethylenediamine (en) of "AsSe₄", "TlAsSe₄", and "InAsSe₄", followed by reaction with cation sources or 2.2.2-cryptand, has led to the isolation of [NEt4]₂[As₂Se₆] (1), [enH][AsSe₆]·2.2.2-cryptand (2), [NEt₄][AsSe₈] (3), and [(en)₂In(SeAs(Se)Se₂)]·en (4). These compounds contain AsSe⁺ units coordinated to Se₂^2-, Se₅^2-, and Se₇^2- ligands in 1 and 4, 2, and 3, respectively. The [As₂Se₆]^2- anion features two AsSe⁺ units joined by Se₂^2- ligands; the resultant As₂Se₄ ring exhibits a chair conformation. The [AsSe₆]^- anion features an AsSe⁺ unit coordinated in a bidentate fashion by a Se₅^2- ligand to create an AsSe₅ ring with a chair conformation. The [AsSe₈]^- anion contains an AsSe⁺ unit coordinated by a bidentate Se₇^2- ligand; the resultant AsSe₇ ring has a crown conformation. [(en)₂In(SeAs(Se)Se₂)] features an octahedral In atom bridged by one Se^2- and one Se₂^2- ligand to an AsSe⁺ unit; two bidentate en ligands complete the coordination about the In center.

Original language	English (US)
Pages (from-to)	2340-2343
Number of pages	4
Journal	Inorganic chemistry
Volume	37
Issue number	10
State	Published - May 18 1998

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

Cite this

@article{888f83b6e2364e00a4616499f65bbcb6,

title = "Se22-, Se52-, and Se72- Ligands in [NEt4]2[As2Se6], [enH][AsSe6]·2.2.2-cryptand, [NEt4][AsSe8], and [(en)2In(SeAs(Se)Se2)]·en",

abstract = "The extraction in ethylenediamine (en) of {"}AsSe4{"}, {"}TlAsSe4{"}, and {"}InAsSe4{"}, followed by reaction with cation sources or 2.2.2-cryptand, has led to the isolation of [NEt4]2[As2Se6] (1), [enH][AsSe6]·2.2.2-cryptand (2), [NEt4][AsSe8] (3), and [(en)2In(SeAs(Se)Se2)]·en (4). These compounds contain AsSe+ units coordinated to Se22-, Se52-, and Se72- ligands in 1 and 4, 2, and 3, respectively. The [As2Se6]2- anion features two AsSe+ units joined by Se22- ligands; the resultant As2Se4 ring exhibits a chair conformation. The [AsSe6]- anion features an AsSe+ unit coordinated in a bidentate fashion by a Se52- ligand to create an AsSe5 ring with a chair conformation. The [AsSe8]- anion contains an AsSe+ unit coordinated by a bidentate Se72- ligand; the resultant AsSe7 ring has a crown conformation. [(en)2In(SeAs(Se)Se2)] features an octahedral In atom bridged by one Se2- and one Se22- ligand to an AsSe+ unit; two bidentate en ligands complete the coordination about the In center.",

author = "Smith, {Donna M.} and Pell, {Michael A.} and Ibers, {James A.}",

year = "1998",

month = may,

day = "18",

language = "English (US)",

volume = "37",

pages = "2340--2343",

journal = "Inorganic chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "10",

}

TY - JOUR

T1 - Se22-, Se52-, and Se72- Ligands in [NEt4]2[As2Se6], [enH][AsSe6]·2.2.2-cryptand, [NEt4][AsSe8], and [(en)2In(SeAs(Se)Se2)]·en

AU - Smith, Donna M.

AU - Pell, Michael A.

AU - Ibers, James A.

PY - 1998/5/18

Y1 - 1998/5/18

N2 - The extraction in ethylenediamine (en) of "AsSe4", "TlAsSe4", and "InAsSe4", followed by reaction with cation sources or 2.2.2-cryptand, has led to the isolation of [NEt4]2[As2Se6] (1), [enH][AsSe6]·2.2.2-cryptand (2), [NEt4][AsSe8] (3), and [(en)2In(SeAs(Se)Se2)]·en (4). These compounds contain AsSe+ units coordinated to Se22-, Se52-, and Se72- ligands in 1 and 4, 2, and 3, respectively. The [As2Se6]2- anion features two AsSe+ units joined by Se22- ligands; the resultant As2Se4 ring exhibits a chair conformation. The [AsSe6]- anion features an AsSe+ unit coordinated in a bidentate fashion by a Se52- ligand to create an AsSe5 ring with a chair conformation. The [AsSe8]- anion contains an AsSe+ unit coordinated by a bidentate Se72- ligand; the resultant AsSe7 ring has a crown conformation. [(en)2In(SeAs(Se)Se2)] features an octahedral In atom bridged by one Se2- and one Se22- ligand to an AsSe+ unit; two bidentate en ligands complete the coordination about the In center.

AB - The extraction in ethylenediamine (en) of "AsSe4", "TlAsSe4", and "InAsSe4", followed by reaction with cation sources or 2.2.2-cryptand, has led to the isolation of [NEt4]2[As2Se6] (1), [enH][AsSe6]·2.2.2-cryptand (2), [NEt4][AsSe8] (3), and [(en)2In(SeAs(Se)Se2)]·en (4). These compounds contain AsSe+ units coordinated to Se22-, Se52-, and Se72- ligands in 1 and 4, 2, and 3, respectively. The [As2Se6]2- anion features two AsSe+ units joined by Se22- ligands; the resultant As2Se4 ring exhibits a chair conformation. The [AsSe6]- anion features an AsSe+ unit coordinated in a bidentate fashion by a Se52- ligand to create an AsSe5 ring with a chair conformation. The [AsSe8]- anion contains an AsSe+ unit coordinated by a bidentate Se72- ligand; the resultant AsSe7 ring has a crown conformation. [(en)2In(SeAs(Se)Se2)] features an octahedral In atom bridged by one Se2- and one Se22- ligand to an AsSe+ unit; two bidentate en ligands complete the coordination about the In center.

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Se₂^2-, Se₅^2-, and Se₇^2- Ligands in [NEt₄]₂[As₂Se₆], [enH][AsSe₆]·2.2.2-cryptand, [NEt₄][AsSe₈], and [(en)₂In(SeAs(Se)Se₂)]·en

Abstract

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