Wikipedia
Tetranitratoxycarbon
Tetranitratoxycarbon, more formally known as tetrakis(nitratoxycarbon)methane, is a hypothetically-possible molecule, not yet synthesised, and unknown to science until ten-year-old Clara Lazen (a fifth-grader in Kansas City, Missouri) assembled a model of it in 2012. She is credited as co-author of a scientific paper on the molecule.