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Complete 1H and 13C NMR spectral assignment of symmetric and asymmetric bis-spiropyran derivatives

✍ Scribed by Sam-Rok Keum; Hyo-Jung Roh; Yoon-Ki Choi; Soon-Sung Lim; Sung-Hoon Kim; Kwangnak Koh

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
99 KB
Volume
43
Category
Article
ISSN
0749-1581

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✦ Synopsis

(1)H and (13)C NMR spectra of symmetric and asymmetric bis-spiropyrans, Series 1-3, were completely assigned. Especially, the (1)H assignment of asymmetric spiropyrans was achieved by utilizing (1)H-(1)H COSY and nOe experiments. All of the carbons in the dye molecules were investigated through a combination of heteronuclear 2D-shift correlation spectroscopy (HETCOR), together with an attached proton test (APT).

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