Electronic absorption data were collected with a Hewlett-Packard 8452A diode-array spectrophotometer. Unless otherwise stated, samples were removed from the NMR tube after NMR data collection, thoroughly mixed and transferred to a disposable cuvette (14–878, Fisher Scientific, Pittsburgh, PA) for electronic absorption data collection. Some absorption spectra were also recorded directly in the NMR tube as described22 (link). Briefly, the NMR tube containing the sample of interest was inserted in a disposable cuvette (14–955, Fisher Scientific, Pittsburgh, PA) and secured to the bottom of the cuvette via a glued NMR cap. The interstitial space between the cuvette and the NMR tube was then filled with water22 (link).
Protocol detail
Spectroscopic Characterization of Samples
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Other organizations : University of Wisconsin–Madison
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Variable analysis
independent variables
- None explicitly mentioned
- Electronic absorption data
- Sample preparation (removal from NMR tube, thorough mixing, transfer to disposable cuvette)
- Spectrophotometer used (Hewlett-Packard 8452A diode-array spectrophotometer)
- Cuvette type (disposable cuvette, 14-878 Fisher Scientific, and disposable cuvette, 14-955 Fisher Scientific, with water-filled interstitial space)
- Positive control: None mentioned
- Negative control: None mentioned
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