What is MIME type "chemical/x-gaussian-cube"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

chemical/x-gaussian-cube is the MIME type for files that store volumetric chemical data. They hold grid-based information for properties like electron density and molecular orbitals.

These files use the CUB extension. The format is text-based. It includes headers with grid dimensions, atomic coordinates, and numerical data arrays.

Used to visualize 3D molecular structures.
Helps in analyzing chemical simulations.
Supports computational studies in chemistry research.

The format is common with Gaussian software and is also supported by other molecular modeling tools. For a deeper dive into Gaussian Cube files, visit Gaussian.

Associated file extensions

.cub

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: chemical/x-gaussian-cube

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="chemical/x-gaussian-cube">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'chemical/x-gaussian-cube');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.cub

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.