Bis{bis[1-methoxy-2-(2-methoxyethoxy)-ethane-κ3O,O0,O00]sodium} 1,1,2,2-tetraphenylethane-1,2-diide

Mikhail E. Minyaev, John E. Ellis

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Crystals of the title salt, [Na(C6H14O 3)2]2(C26H20), were grown from a tetrahydrofuran/diglyme/Et2O solvent mixture [diglyme is 1-methoxy-2-(2-methoxyethoxy)ethane]. The cations and dianion are separated in the crystal structure, unlike in the other three structurally characterized dialkali metal tetraphenylethylene salts. The asymmetric unit contains one [Na(diglyme)2]+ cation and one half of the [Ph2CCPh2]2-dianion. The latter lies on a twofold rotation axis. C-C bondlength redistribution displays that excessive electron density of the dianion is predominantly located at the C atoms of a former double bond and at all eight ortho positions. The studied crystal was a twin, with the ratio of two major components being 0.2143 (9):0.7857 (9). The twin operation is a twofold rotation around the a axis.

Original languageEnglish (US)
Pages (from-to)m249-m250
JournalActa Crystallographica Section E: Structure Reports Online
Volume70
Issue number7
DOIs
StatePublished - Jul 2014

Keywords

  • Data-to-parameter ratio = 21.4
  • Mean-(C-C) = 0.003 Å
  • R factor = 0.048
  • Single-crystal X-ray study
  • T = 123 K
  • WR factor = 0.115

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