A triclinic polymorph of octa-tert-butoxy-tetralithiumtetrasodium

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

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)M64-M66
JournalActa Crystallographica Section E: Structure Reports
Issue number2
Publication statusPublished - Feb 2003


  • crystallographically


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