MolDraw Docs

AI Spectroscopy plugin

Short answer: Add a Gemini API key in Settings , AI, install Spectroscopy, open AI chat and ask e.g. "Predict the EI mass spectrum of this molecule".

Last updated · By the MolDraw team at LabCanvas

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MolDraw AI chat panel with a prompt asking to predict the 1H NMR, EI-MS and UV-Vis spectra of the molecule on the canvas
The AI chat predicts NMR, EI mass and UV-Vis data for the structure on the canvas.
  1. AI chat button in the toolbar.
  2. Prompt box: describe which spectrum you want.

What it does#

The plugin sends your structure to the AI model. The model returns peaks in a fixed format. MolDraw shows them as tables and charts.

The values come from a language model. Use them to learn and explain. Do not use them as reference data. Check real spectra in SDBS or NIST.

Who it is for#

Students who want a quick guess at a spectrum. Teachers who make practice problems.

How to use it#

  1. Open the MolDraw editor and sign in. Click Settings, then Plugins, then Install next to AI Spectroscopy.
  2. Open Settings , AI and paste your Gemini API key (stored only in your browser).
  3. Install Spectroscopy from Settings , Plugins.
  4. Draw the molecule.
  5. Click AI chat (callout 1).
  6. Type a request in the prompt box (callout 2), e.g. "Predict the 1H NMR spectrum".
  7. Open the result window to see the spectrum, peak table and notes.

Tips#

Questions and answers

Does the AI Spectroscopy plugin cost money?

The plugin is free; requests use your own Gemini API key, which has a free tier from Google.

Are AI-predicted spectra accurate?

They are plausible estimates for teaching. Always confirm with experimental data or rule-based predictors.

Which spectra can it predict?

1H/13C NMR, mass spectra (EI) and UV-Vis absorption.