> For the complete documentation index, see [llms.txt](https://docs.materialsproject.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.materialsproject.org/apps/explorer-apps/molecules-explorer/tutorial.md). # Tutorial Visit [Molecules Explorer](https://next-gen.materialsproject.org/molecules); 1. Search for molecules, either by entering search criteria in the search box:

Search box in the Materials Project Molecules Explorer

or else apply filters using the box on the left:

3\. Click "Search" button to show search results.

Search results, looking for molecules with formula C2 H4 and spin multiplicity 2

4\. Clicking on a molecule ID will take you to the detail page. At the top of the page, a 3D molecular structure is shown, as well as basic properties like the point group, charge, and spin multiplicity:

Example molecule detail page for ethylene in the radical cation state.

5\. In MPcules, properties may be calculated in different solvent environments. You can select which properties you want to see by selecting from the drop-down menu on the right:

Properties will only be shown for the selected solvent environment (red box)

--- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.materialsproject.org/apps/explorer-apps/molecules-explorer/tutorial.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.