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].

Autor:	Beckett, Joseph O. S., Olmstead, Marilyn M., Fettinger, James C., Gray, David A., Manabe, Shuhei, Mascal, Mark
Předmět:	INDOLINE CRYSTAL structure MOLECULAR structure UNDERGRADUATES THERMOCHROMISM GAS phase reactions
Zdroj:	Acta Crystallographica Section E: Crystallographic Communications; Nov2016, Vol. 72 Issue 11, p1659-1662, 18p, 2 Color Photographs, 2 Diagrams, 8 Charts
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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