Xenon Tetrafluoride Molecule and Its Thermal Motion: A Neutron Diffraction Study

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Science  22 Mar 1963:
Vol. 139, Issue 3560, pp. 1208-1209
DOI: 10.1126/science.139.3560.1208


A neutron-diffraction analysis of the xenon tetrafluoride crystal structure has confirmed the square-planar symmetry of the molecule; from the data the average Xe to F bond length is 1.953 Å (σ = .002) and the F to Xe to F angle is 90.0° (σ = 0.1). A description of the thermal displacements in the crystal is given.