Question
The signal for TMS's 1H atoms is assigned δ = ____.
Answer
The signal for TMS's 1H atoms is assigned δ = 0.
Note: To make sure that we know just how far downfield compounds are, we use tetramethylsilane (TMS) as the calibration standard to mark 0 ppm; when counting peaks, make sure to skip the TMS peak.
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Infrared (IR) spectroscopy measures ____.
Molecular vibrations can be seen as ____.
To record an IR spectrum, i____e is measured.
The infrared light range runs from λ = ____.
The useful absorptions for infrared spectroscopy occur at wavelengths of ____ nm.
On an IR spectrum, we use an analog of ____ called wavenumber.