This is the accepted manuscript made available via CHORUS. The article has been published as: Ultrafast structural dynamics of VO_{2} Sergiy Lysenko, Nardeep Kumar, Armando Rúa, José Figueroa, Junqiang Lu, and Félix Fernández Phys. Rev. B 96, 075128 — Published 14 August 2017 DOI: 10.1103/PhysRevB.96.075128