At ambient pressure and temperature TiCl4 is a fuming yellow liquid. On cooling it forma a solid composed of essentially isolated tetrahedral molecules; the same structure is formed on solidification at 0.5 kbar. Raman spectra show that this structure transforms to a new phase at 12 kbar in which Ti atoms are bridged by chloride. Synchrotron X-ray powder diffraction suggests that the new phase is isostructural with ZrCl4, but the data are very broad and poorly powder averaged. We have seen in other work that whereas X-ray powder patterns collected on soft solids at high pressure are often so poorly averaged that they are not suitable for structure analysis, neutron data collected on PEARL with a larger sample volume are suitable not only for refinement, but also structure solution. We therefore request 6 days on PEARL to characterize the high pressure phase of TiCl4 more definitively.