The catena-arsenite chain anion, [AsO2](n-)(n): (H3NCH2CH2NH3)(0.5)[AsO2] and NaAsO2 (revisited)

C  Lee; W T A  Harrison

doi:10.1107/S0108270104007450

The catena-arsenite chain anion, [AsO2](n-)(n): (H3NCH2CH2NH3)(0.5)[AsO2] and NaAsO2 (revisited)

C Lee, W T A Harrison

Chemistry

Research output: Contribution to journal › Article

15 Citations (Scopus)

Abstract

The title compounds contain the catena-arsenite [AsO2](n)(n-) unit, in which the As-III atom is pyramidally coordinated to one terminal and two bridging O atoms, resulting in an infinite anionic chain. Ethylenediammonium catena-arsenite, (C2H10N2) (0.5)[AsO2], is the first example of this anion in the company of an organic cation. The ethylenediammonium species interact with the [AsO2](-) chains by way of N - H...O hydrogen bonds. The structure of sodium catena-arsenite, Na[AsO2] [Menary (1958). Acta Cryst. 11, 742 - 743], has been redetermined to yield more reliable geometrical parameters. The As - O distances are normal and the Na+ cation is seven-coordinate [Na - O = 2.285 (4) - 3.063 (4) Angstrom] in a distorted capped trigonal prismatic geometry.

Original language	English
Number of pages	4
Journal	Acta Crystallographica Section C, Crystal Structure Communications
Volume	60
DOIs	https://doi.org/10.1107/S0108270104007450
Publication status	Published - 2004

Keywords

CRYSTAL-STRUCTURE
STRUCTURAL CHEMISTRY
MINERALS

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title = "The catena-arsenite chain anion, [AsO2](n-)(n): (H3NCH2CH2NH3)(0.5)[AsO2] and NaAsO2 (revisited)",

abstract = "The title compounds contain the catena-arsenite [AsO2](n)(n-) unit, in which the As-III atom is pyramidally coordinated to one terminal and two bridging O atoms, resulting in an infinite anionic chain. Ethylenediammonium catena-arsenite, (C2H10N2) (0.5)[AsO2], is the first example of this anion in the company of an organic cation. The ethylenediammonium species interact with the [AsO2](-) chains by way of N - H...O hydrogen bonds. The structure of sodium catena-arsenite, Na[AsO2] [Menary (1958). Acta Cryst. 11, 742 - 743], has been redetermined to yield more reliable geometrical parameters. The As - O distances are normal and the Na+ cation is seven-coordinate [Na - O = 2.285 (4) - 3.063 (4) Angstrom] in a distorted capped trigonal prismatic geometry.",

keywords = "CRYSTAL-STRUCTURE, STRUCTURAL CHEMISTRY, MINERALS",

author = "C Lee and Harrison, {W T A}",

year = "2004",

doi = "10.1107/S0108270104007450",

language = "English",

volume = "60",

journal = "Acta Crystallographica Section C, Crystal Structure Communications",

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TY - JOUR

T1 - The catena-arsenite chain anion, [AsO2](n-)(n): (H3NCH2CH2NH3)(0.5)[AsO2] and NaAsO2 (revisited)

AU - Lee, C

AU - Harrison, W T A

PY - 2004

Y1 - 2004

N2 - The title compounds contain the catena-arsenite [AsO2](n)(n-) unit, in which the As-III atom is pyramidally coordinated to one terminal and two bridging O atoms, resulting in an infinite anionic chain. Ethylenediammonium catena-arsenite, (C2H10N2) (0.5)[AsO2], is the first example of this anion in the company of an organic cation. The ethylenediammonium species interact with the [AsO2](-) chains by way of N - H...O hydrogen bonds. The structure of sodium catena-arsenite, Na[AsO2] [Menary (1958). Acta Cryst. 11, 742 - 743], has been redetermined to yield more reliable geometrical parameters. The As - O distances are normal and the Na+ cation is seven-coordinate [Na - O = 2.285 (4) - 3.063 (4) Angstrom] in a distorted capped trigonal prismatic geometry.

AB - The title compounds contain the catena-arsenite [AsO2](n)(n-) unit, in which the As-III atom is pyramidally coordinated to one terminal and two bridging O atoms, resulting in an infinite anionic chain. Ethylenediammonium catena-arsenite, (C2H10N2) (0.5)[AsO2], is the first example of this anion in the company of an organic cation. The ethylenediammonium species interact with the [AsO2](-) chains by way of N - H...O hydrogen bonds. The structure of sodium catena-arsenite, Na[AsO2] [Menary (1958). Acta Cryst. 11, 742 - 743], has been redetermined to yield more reliable geometrical parameters. The As - O distances are normal and the Na+ cation is seven-coordinate [Na - O = 2.285 (4) - 3.063 (4) Angstrom] in a distorted capped trigonal prismatic geometry.

KW - CRYSTAL-STRUCTURE

KW - STRUCTURAL CHEMISTRY

KW - MINERALS

U2 - 10.1107/S0108270104007450

DO - 10.1107/S0108270104007450

M3 - Article

VL - 60

JO - Acta Crystallographica Section C, Crystal Structure Communications

JF - Acta Crystallographica Section C, Crystal Structure Communications

SN - 0108-2701

ER -

The catena-arsenite chain anion, [AsO2](n-)(n): (H3NCH2CH2NH3)(0.5)[AsO2] and NaAsO2 (revisited)

Abstract

Keywords

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