# Legacy Data

1. Visit the legacy JCESR [Molecules Explorer](https://next-gen.materialsproject.org/jcesr);
2. Enter the search criteria in the search box (labeled in red), or select elements from the periodic table of elements:

![Molecules Explorer Search Page](/files/j7LTG1RMKvWVI9xKsxCy)

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

![Search results](/files/bVfVSIOc6FVbclVISSYo)

4\. The molecular information is shown within each entry, by clicking on the Molecule ID:

![Molecule information](/files/VIGoGY9wnF2Tz8qGiWg0)

5\. Users can refine the search result via Filter, located on the top left part of the search results page. The filter can be applied to either the composition, or the basic properties.

![Filter by formula / composition](/files/tF7JLB9oEsp78tdBmcQv)

![Filter by Basic Properties](/files/dZeeCy6X4MCxj46N12Sw)


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# Agent Instructions: 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:

```
GET https://docs.materialsproject.org/apps/explorer-apps/molecules-explorer/legacy-data.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.