caption: The image shows a 3D model of a molecular structure, which appears to be a tetrahedron, against a white background. The structure is composed of a series of interconnected spheres, each with its own unique shape and size. The spheres are arranged in a symmetrical pattern, with the largest sphere at the center and the smallest at the edges. The colors of the spheres range from light to dark, giving the image a sense of depth and dimension.