A triclinic polymorph of octa-tert-butoxy-tetralithiumtetrasodium

W. Clegg, A.M. Drummond, S.T. Liddle, R.E. Mulvey

Research output: Contribution to journalArticle

Abstract

The title compound, tetra-mu(3)-tert-butoxy-tetra-mu(4)-tert-butoxytetralithiumtetrasodium, [Li4Na4 (C4H9O)(8)], has been obtained in a second, triclinic, modification, with three crystallographically independent molecules in the asymmetric unit. All three molecules, as well as the two independent molecules of a previously reported monoclinic polymorph, have essentially the same structure, in which the tert-butoxy ligands are either triply or quadruply bridging, Li+ cations have trigonal pyramidal coordination, and Na+ cations have irregular fourfold coordination. The molecules have no crystallographic symmetry, but approximate to (4) over bar 2m (D-2d) symmetry.
LanguageEnglish
PagesM64-M66
JournalActa Crystallographica Section E: Structure Reports
Volume59
Issue number2
DOIs
Publication statusPublished - Feb 2003

Fingerprint

Polymorphism
Molecules
Cations
molecules
Positive ions
cations
symmetry
Ligands
ligands
tert-butoxy

Keywords

  • crystallographically

Cite this

@article{76d70c0e228b4f13a5317c0e58df703d,
title = "A triclinic polymorph of octa-tert-butoxy-tetralithiumtetrasodium",
abstract = "The title compound, tetra-mu(3)-tert-butoxy-tetra-mu(4)-tert-butoxytetralithiumtetrasodium, [Li4Na4 (C4H9O)(8)], has been obtained in a second, triclinic, modification, with three crystallographically independent molecules in the asymmetric unit. All three molecules, as well as the two independent molecules of a previously reported monoclinic polymorph, have essentially the same structure, in which the tert-butoxy ligands are either triply or quadruply bridging, Li+ cations have trigonal pyramidal coordination, and Na+ cations have irregular fourfold coordination. The molecules have no crystallographic symmetry, but approximate to (4) over bar 2m (D-2d) symmetry.",
keywords = "crystallographically",
author = "W. Clegg and A.M. Drummond and S.T. Liddle and R.E. Mulvey",
year = "2003",
month = "2",
doi = "10.1107/S1600536803001193",
language = "English",
volume = "59",
pages = "M64--M66",
journal = "Acta Crystallographica Section E: Structure Reports",
issn = "1600-5368",
number = "2",

}

A triclinic polymorph of octa-tert-butoxy-tetralithiumtetrasodium. / Clegg, W.; Drummond, A.M.; Liddle, S.T.; Mulvey, R.E.

In: Acta Crystallographica Section E: Structure Reports, Vol. 59, No. 2, 02.2003, p. M64-M66.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A triclinic polymorph of octa-tert-butoxy-tetralithiumtetrasodium

AU - Clegg, W.

AU - Drummond, A.M.

AU - Liddle, S.T.

AU - Mulvey, R.E.

PY - 2003/2

Y1 - 2003/2

N2 - The title compound, tetra-mu(3)-tert-butoxy-tetra-mu(4)-tert-butoxytetralithiumtetrasodium, [Li4Na4 (C4H9O)(8)], has been obtained in a second, triclinic, modification, with three crystallographically independent molecules in the asymmetric unit. All three molecules, as well as the two independent molecules of a previously reported monoclinic polymorph, have essentially the same structure, in which the tert-butoxy ligands are either triply or quadruply bridging, Li+ cations have trigonal pyramidal coordination, and Na+ cations have irregular fourfold coordination. The molecules have no crystallographic symmetry, but approximate to (4) over bar 2m (D-2d) symmetry.

AB - The title compound, tetra-mu(3)-tert-butoxy-tetra-mu(4)-tert-butoxytetralithiumtetrasodium, [Li4Na4 (C4H9O)(8)], has been obtained in a second, triclinic, modification, with three crystallographically independent molecules in the asymmetric unit. All three molecules, as well as the two independent molecules of a previously reported monoclinic polymorph, have essentially the same structure, in which the tert-butoxy ligands are either triply or quadruply bridging, Li+ cations have trigonal pyramidal coordination, and Na+ cations have irregular fourfold coordination. The molecules have no crystallographic symmetry, but approximate to (4) over bar 2m (D-2d) symmetry.

KW - crystallographically

UR - http://journals.iucr.org/e/issues/2003/02/00/bt6229/bt6229.pdf

UR - http://dx.doi.org/10.1107/S1600536803001193

U2 - 10.1107/S1600536803001193

DO - 10.1107/S1600536803001193

M3 - Article

VL - 59

SP - M64-M66

JO - Acta Crystallographica Section E: Structure Reports

T2 - Acta Crystallographica Section E: Structure Reports

JF - Acta Crystallographica Section E: Structure Reports

SN - 1600-5368

IS - 2

ER -