Synthesis and properties of the homo- and heteropolychalcogenide [A(Q5)2]2- family (ATe, QS, Se; ASe, QSe). Crystal structures of (Ph4P)2[Te(S5)2] and β-(Ph4P)2[Se(Se5)2]

Song Ping Huang, Sandeep Dhingra, Mercouri G Kanatzidis

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Abstract

The reaction of Na2Te4 with K2S5 in dimethylformamide in the presence of Ph4PCl gave (Ph4P)2[Te(S5)2] (1). Under the same conditions, the reaction of elemental tellurium with Na2Se5 afforded (Ph4P)2[Te(Se5)2] (II), while β-(Ph4P)2[Se(Se5)2] (III) was made by reacting Na2Se5 with I2. The X-ray powder diffraction studies showed that I, II and III are isostructural. The structures of I and III were determined by X-ray single crystal analysis. The [A(Q5)2]2- anions in the two compounds contain either a square-planar Te2+ in I or Se2+ centre in III, which is situated on an inversion centre and chelated by two S5 2- or Se5 2- ligands. The bond distances between the central A2+ and its surrounding four Q atoms are TeS(1) = 2.699(2) Å and TeS(5) = 2.752(2) Å, or SeSe(1) = 2.653(2) Å and SeSe(5) = 2.693(2) Å. SS bond distances [av. SS = 2.075(12) Å] or SeSe bond distances [av. SeSe = 2.314(13) Å] are normal and in good agreement with those found in other polysulphide or polyselenide compounds. The conformation of each AQ5 ring in I and III is very close to a "chair". The solution UV-vis spectra of DMF solutions for all three compounds are reported.

Original languageEnglish
Pages (from-to)1869-1875
Number of pages7
JournalPolyhedron
Volume11
Issue number15
DOIs
Publication statusPublished - 1992

Fingerprint

Crystal structure
Tellurium
Powder Diffraction
Polysulfides
Dimethylformamide
crystal structure
synthesis
varespladib methyl
X-Ray Diffraction
X ray powder diffraction
Anions
polysulfides
Conformations
Negative ions
Ligands
X-Rays
Single crystals
tellurium
X rays
Atoms

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

@article{5f8e1ef5f31140c29a10861346acecba,
title = "Synthesis and properties of the homo- and heteropolychalcogenide [A(Q5)2]2- family (ATe, QS, Se; ASe, QSe). Crystal structures of (Ph4P)2[Te(S5)2] and β-(Ph4P)2[Se(Se5)2]",
abstract = "The reaction of Na2Te4 with K2S5 in dimethylformamide in the presence of Ph4PCl gave (Ph4P)2[Te(S5)2] (1). Under the same conditions, the reaction of elemental tellurium with Na2Se5 afforded (Ph4P)2[Te(Se5)2] (II), while β-(Ph4P)2[Se(Se5)2] (III) was made by reacting Na2Se5 with I2. The X-ray powder diffraction studies showed that I, II and III are isostructural. The structures of I and III were determined by X-ray single crystal analysis. The [A(Q5)2]2- anions in the two compounds contain either a square-planar Te2+ in I or Se2+ centre in III, which is situated on an inversion centre and chelated by two S5 2- or Se5 2- ligands. The bond distances between the central A2+ and its surrounding four Q atoms are TeS(1) = 2.699(2) {\AA} and TeS(5) = 2.752(2) {\AA}, or SeSe(1) = 2.653(2) {\AA} and SeSe(5) = 2.693(2) {\AA}. SS bond distances [av. SS = 2.075(12) {\AA}] or SeSe bond distances [av. SeSe = 2.314(13) {\AA}] are normal and in good agreement with those found in other polysulphide or polyselenide compounds. The conformation of each AQ5 ring in I and III is very close to a {"}chair{"}. The solution UV-vis spectra of DMF solutions for all three compounds are reported.",
author = "Huang, {Song Ping} and Sandeep Dhingra and Kanatzidis, {Mercouri G}",
year = "1992",
doi = "10.1016/S0277-5387(00)83734-1",
language = "English",
volume = "11",
pages = "1869--1875",
journal = "Polyhedron",
issn = "0277-5387",
publisher = "Elsevier Limited",
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T1 - Synthesis and properties of the homo- and heteropolychalcogenide [A(Q5)2]2- family (ATe, QS, Se; ASe, QSe). Crystal structures of (Ph4P)2[Te(S5)2] and β-(Ph4P)2[Se(Se5)2]

AU - Huang, Song Ping

AU - Dhingra, Sandeep

AU - Kanatzidis, Mercouri G

PY - 1992

Y1 - 1992

N2 - The reaction of Na2Te4 with K2S5 in dimethylformamide in the presence of Ph4PCl gave (Ph4P)2[Te(S5)2] (1). Under the same conditions, the reaction of elemental tellurium with Na2Se5 afforded (Ph4P)2[Te(Se5)2] (II), while β-(Ph4P)2[Se(Se5)2] (III) was made by reacting Na2Se5 with I2. The X-ray powder diffraction studies showed that I, II and III are isostructural. The structures of I and III were determined by X-ray single crystal analysis. The [A(Q5)2]2- anions in the two compounds contain either a square-planar Te2+ in I or Se2+ centre in III, which is situated on an inversion centre and chelated by two S5 2- or Se5 2- ligands. The bond distances between the central A2+ and its surrounding four Q atoms are TeS(1) = 2.699(2) Å and TeS(5) = 2.752(2) Å, or SeSe(1) = 2.653(2) Å and SeSe(5) = 2.693(2) Å. SS bond distances [av. SS = 2.075(12) Å] or SeSe bond distances [av. SeSe = 2.314(13) Å] are normal and in good agreement with those found in other polysulphide or polyselenide compounds. The conformation of each AQ5 ring in I and III is very close to a "chair". The solution UV-vis spectra of DMF solutions for all three compounds are reported.

AB - The reaction of Na2Te4 with K2S5 in dimethylformamide in the presence of Ph4PCl gave (Ph4P)2[Te(S5)2] (1). Under the same conditions, the reaction of elemental tellurium with Na2Se5 afforded (Ph4P)2[Te(Se5)2] (II), while β-(Ph4P)2[Se(Se5)2] (III) was made by reacting Na2Se5 with I2. The X-ray powder diffraction studies showed that I, II and III are isostructural. The structures of I and III were determined by X-ray single crystal analysis. The [A(Q5)2]2- anions in the two compounds contain either a square-planar Te2+ in I or Se2+ centre in III, which is situated on an inversion centre and chelated by two S5 2- or Se5 2- ligands. The bond distances between the central A2+ and its surrounding four Q atoms are TeS(1) = 2.699(2) Å and TeS(5) = 2.752(2) Å, or SeSe(1) = 2.653(2) Å and SeSe(5) = 2.693(2) Å. SS bond distances [av. SS = 2.075(12) Å] or SeSe bond distances [av. SeSe = 2.314(13) Å] are normal and in good agreement with those found in other polysulphide or polyselenide compounds. The conformation of each AQ5 ring in I and III is very close to a "chair". The solution UV-vis spectra of DMF solutions for all three compounds are reported.

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