Structure and chemical bonding in K14Cd9Tl21, a compound containing both isolated Tl11/7- clusters and (∞)/2([Cd9Tl10/7-] metallic layers

Monique Tillard-Charbonnel; Abdelkrim Chahine; Claude Belin; Roger Rousseau; Enric Canadell

doi:10.1002/chem.19970030520

Structure and chemical bonding in K₁₄Cd₉Tl₂₁, a compound containing both isolated Tl₁₁/^7- clusters and (∞)/²([Cd₉Tl₁₀/^7-] metallic layers

Monique Tillard-Charbonnel
, Abdelkrim Chahine
, Claude Belin
, Roger Rousseau
, Enric Canadell

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

7 Scopus citations

Abstract

The compound K₁₄Cd₉Tl₂₁ has been prepared by fusion of the elements in a tantalum reactor followed by slow cooling at the rate of 6 per hour to enable crystal growth. The X-ray crystal structure (hexagonal, P62m; a = 9.884(3),c= 17.173(5) Å; Z= 2) was refined to reliability factors of R1 = 5.09, wR2 = 11.64%. The anionic substructure contains both isolated clusters of Tl₁₁/^7- and a layered network based on Cd₅Tl₂ pentagonal bipyramids. The structure electron count relationship for the Tl₁₁/^7- cluster was analyzed in detail. The Cd₉Tl₁₀/^7- layers are found to confer metallic properties to the material, and the bonding within such layers is found to be highly delocalized.

Original language	English
Pages (from-to)	799-806
Number of pages	8
Journal	Chemistry - A European Journal
Volume	3
Issue number	5
DOIs	https://doi.org/10.1002/chem.19970030520
State	Published - May 1997
Externally published	Yes

Keywords

Zintl phases
cadmium
clusters
layered compounds
semiempirical calculations
thallium

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10.1002/chem.19970030520

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@article{97cf93f5120f42d99258a23b66e39839,

title = "Structure and chemical bonding in K14Cd9Tl21, a compound containing both isolated Tl11/7- clusters and (∞)/2([Cd9Tl10/7-] metallic layers",

abstract = "The compound K14Cd9Tl21 has been prepared by fusion of the elements in a tantalum reactor followed by slow cooling at the rate of 6 per hour to enable crystal growth. The X-ray crystal structure (hexagonal, P62m; a = 9.884(3),c= 17.173(5) {\AA}; Z= 2) was refined to reliability factors of R1 = 5.09, wR2 = 11.64\%. The anionic substructure contains both isolated clusters of Tl11/7- and a layered network based on Cd5Tl2 pentagonal bipyramids. The structure electron count relationship for the Tl11/7- cluster was analyzed in detail. The Cd9Tl10/7- layers are found to confer metallic properties to the material, and the bonding within such layers is found to be highly delocalized.",

keywords = "Zintl phases, cadmium, clusters, layered compounds, semiempirical calculations, thallium",

author = "Monique Tillard-Charbonnel and Abdelkrim Chahine and Claude Belin and Roger Rousseau and Enric Canadell",

year = "1997",

month = may,

doi = "10.1002/chem.19970030520",

language = "English",

volume = "3",

pages = "799--806",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "wiley",

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}

TY - JOUR

T1 - Structure and chemical bonding in K14Cd9Tl21, a compound containing both isolated Tl11/7- clusters and (∞)/2([Cd9Tl10/7-] metallic layers

AU - Tillard-Charbonnel, Monique

AU - Chahine, Abdelkrim

AU - Belin, Claude

AU - Rousseau, Roger

AU - Canadell, Enric

PY - 1997/5

Y1 - 1997/5

N2 - The compound K14Cd9Tl21 has been prepared by fusion of the elements in a tantalum reactor followed by slow cooling at the rate of 6 per hour to enable crystal growth. The X-ray crystal structure (hexagonal, P62m; a = 9.884(3),c= 17.173(5) Å; Z= 2) was refined to reliability factors of R1 = 5.09, wR2 = 11.64%. The anionic substructure contains both isolated clusters of Tl11/7- and a layered network based on Cd5Tl2 pentagonal bipyramids. The structure electron count relationship for the Tl11/7- cluster was analyzed in detail. The Cd9Tl10/7- layers are found to confer metallic properties to the material, and the bonding within such layers is found to be highly delocalized.

AB - The compound K14Cd9Tl21 has been prepared by fusion of the elements in a tantalum reactor followed by slow cooling at the rate of 6 per hour to enable crystal growth. The X-ray crystal structure (hexagonal, P62m; a = 9.884(3),c= 17.173(5) Å; Z= 2) was refined to reliability factors of R1 = 5.09, wR2 = 11.64%. The anionic substructure contains both isolated clusters of Tl11/7- and a layered network based on Cd5Tl2 pentagonal bipyramids. The structure electron count relationship for the Tl11/7- cluster was analyzed in detail. The Cd9Tl10/7- layers are found to confer metallic properties to the material, and the bonding within such layers is found to be highly delocalized.

KW - Zintl phases

KW - cadmium

KW - clusters

KW - layered compounds

KW - semiempirical calculations

KW - thallium

UR - https://www.scopus.com/pages/publications/0031011905

U2 - 10.1002/chem.19970030520

DO - 10.1002/chem.19970030520

M3 - Article

AN - SCOPUS:0031011905

SN - 0947-6539

VL - 3

SP - 799

EP - 806

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 5

ER -

Structure and chemical bonding in K₁₄Cd₉Tl₂₁, a compound containing both isolated Tl₁₁/^7- clusters and (∞)/²([Cd₉Tl₁₀/^7-] metallic layers

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Keywords

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