# Reference Request - bond lengths in PCl2F3

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:

1. 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
2. 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
3. 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

To complete your literature survey, include this publication cited at least 11 times so far: «Dichlorotrifluorophosphorane (PCl2F3): molecular structure by gas-phase electron diffraction and quadratic force field» by French et al. in Inorg. Chem. 1985, 24, 2774–2777, doi 10.1021/ic00212a014. Despite the paywall, ACS's «In lieu of an abstract, this is the article's first page.» informs you about some key properties you search, values including ($$2\sigma$$ estimated) e.s.d.
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