While writing an answer here, I needed references for bond lengths of $\ce{PF3Cl2}$ and $\ce{PF4Cl}$. The latter was easily found in reference (1), whereas I could not find exact references for bond lengths in the former molecule.
References (2) and (3) contain information about the Raman spectra and $\ce{F^{19}}$ NMR spectra, but do not contain information about bond lengths. Reference (2) has information about the bond lengths of $\ce{PCl3F2}$, $\ce{PF5}$ and $\ce{PCl5}$, but not for $\ce{PF3Cl2}$.
A reference for exact bond lengths in $\ce{PF3Cl2}$, similar to the bond lengths shown above, is appreciated.
References:
- Leiding, J., Woon, D. E., & Dunning, T. H. (2013). "Bonding in $\ce{PF2Cl}$, $\ce{PF3Cl}$ and $\ce{PF4Cl}$: insight into isomerism and apicophilicity from ab initio calculations and the recoupled pair bonding model". Theoretical Chemistry Accounts, 133(2). doi:10.1007/s00214-013-1428-7
- Griffiths, J. E., Carter, R. P., & Holmes, R. R. (1995). "Molecular Structures of $\ce{PCl4F}$, $\ce{PCl3F2}$, $\ce{PCl2F3}$, and $\ce{PF5}$: Infrared and low-temperature Raman Vibrational Spectra". Phosphorus, Sulfur, and Silicon and the Related Elements, 98(1-4), 11–31. doi:10.1080/10426509508036938
- Holmes, R. R., Carter, R. P., & Peterson, G. E. (1964). "Molecular Structures of $\ce{PCl4F}$, $\ce{PCl3F2}$, and $\ce{PCl2F3}$: Pure Chlorine Nuclear Quadrupole Resonance and Low Temperature $\ce{F^{19}}$ Nuclear Magnetic Resonance Spectra". Inorganic Chemistry, 3(12), 1748–1754. doi:10.1021/ic50022a021