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http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17937| Title: | Microcalorimetric studies: Enthalpies of formation of Cr(PF3)6 and Ni(PF3)4 |
| Authors: | S. Brown, D. Lalage Connor, Joseph A. Skinner, Henry A. |
| Keywords: | Chemistry Microcalorimetric Studies Enthalpies Journal of the Chemical Society : Faraday Transaction - I |
| Issue Date: | 1974 |
| Publisher: | Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (09) |
| Abstract: | Measurements of the heats of iodination of hexakis(trifluorophosphine)chromium(0) and of tetrakis(trifluorophosphine)nickel(0) were carried out by high temperature microcalorimetry. Standard enthalpies of formation were derived: ΔH°f(Ni(PF3)4, liq)=–961.9 ± 3 kcal mol–1(–4025 ± 12 kJ mol–1), ΔH°f(Cr(PF3)6, c)=–1446.4 ± 4 kcal mol–1(–6052 ± 17 kJ mol–1). The mean bond dissociation energies, D(Ni—PF3) and D(Cr—PF3) were evaluated as 35.2 ± 0.8 and 25.5 ± 1 kcal mol–1 respectively; these values compare very closely with the values D(Ni—CO) and D(Cr—CO) in Ni(CO)4 and Cr(CO)6. |
| URI: | http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17937 |
| Appears in Collections: | Journal Articles (before-1995) |
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|---|---|---|---|---|
| 1649-1652.pdf Restricted Access | 256.41 kB | Adobe PDF | View/Open Request a copy |
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