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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Hammond, P. R. Lake, R. R. |
| Copyright Year | 1971 |
| Abstract | We examine the species NF3O, PF5, PF3O, PCl5, PCl3O, AsF5, SbCl5, and SbF5. Both phosphorus and antimony pentachlorides, particularly the latter, are reactive and impose restrictions on the choice of donors for equilibrium studies. Nevertheless, phosphorus pentachloride with naphthalene and antimony pentachloride with benzene and octafluoronaphthalene demonstrate intermolecular spectra and exhibit extremely weak 1:1 interactions in a number of solvents; moreover the naphthalene–phosphorus pentachloride system is thermochromic. Phosphoryl chloride behaves like carbon tetrachloride in that it enhances markedly the spectra of hexamethylbenzene in solution (less so for benzene, naphthalene, anthracene, and pyrene) and this characterizes an extremely weak or just contact 1:1 interaction. The transition is assigned tentatively to a combined intensity-borrowing and electron-transfer process. Intermolecular charge-transfer spectra are not observed with other compounds of Group VB, although some of the materials are reactive chemically. Attempts at detecting arsenic and bismuth pentachlorides are unsuccessful. A spectrophotometric method for determining molecular self-association is suggested and it is pointed out that continuous-variation plots for a weakly interacting system do not provide information on molecularity. |
| Starting Page | 3806 |
| Ending Page | 3812 |
| Page Count | 7 |
| File Format | |
| ISSN | 00224944 |
| Volume Number | 0 |
| Journal | Journal of the Chemical Society A: Inorganic, Physical, Theoretical |
| DOI | 10.1039/J19710003806 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | PCl5 Phosphorus pentafluoride Phosphorus pentachloride Arsenic pentafluoride Antimony pentachloride Phosphorus Antimony Naphthalene Benzene Thermochromism Phosphoryl chloride Carbon tetrachloride Hexamethylbenzene Anthracene Pyrene Arsenic Bismuth Spectrophotometry Molecularity |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry Inorganic Chemistry |
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