Crystal structure determination as part of an undergraduate laboratory experiment: 1′,3′,3′-trimethylspiro[chromene-2,2′-indoline] and 1′,3′,3′-trimethyl-4-[(E)-(1,3,3-trimethylindolin-2-ylidene)methyl]spiro[chroman-2,2′-indoline]

Joseph O S Beckett, Marilyn M. Olmstead, James C. Fettinger, David A. Gray, Shuhei Manabe, Mark Mascal

Research output: Contribution to journalArticlepeer-review

Abstract

The crystal structures of the title compounds, C19H19NO and C31H34N2O, were determined as part of an experiment in an undergraduate teaching laboratory that demonstrates the relationship between molecular structure and function. 1′,3′,3′-Trimethylspiro[chromene-2,2′-indoline] is both a photoswitch and thermochromic molecule. Students synthesized it and a bis-indoline adduct and compared the crystallographically determined structures to computed gas-phase models.

Original languageEnglish (US)
Pages (from-to)1659-1662
Number of pages4
JournalActa Crystallographica Section E: Crystallographic Communications
Volume72
DOIs
StatePublished - 2016

Keywords

  • crystal structure
  • spiropyran
  • undergraduate teaching laboratory

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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