Equilibrium constants in decalin for the scrambling reaction (i) have been measured at 170-190 °C and over a wide range of concentrations. At 190 °C the average of 35 values for K is 2.13 ± 0.02, and [Mn<inf>2</inf>(CO)<inf>10</inf>] + [Re<inf>2</inf>(CO)<inf>10</inf>] ⇄ 2[MnRe(CO)<inf>10</inf>] (i), ΔH<sup>⊖</sup> and ΔS<sup>⊖</sup> are 34.4 ± 1.3 kJ mol<sup>-1</sup> and 80.3 ± 2.5 J K<sup>-1</sup> mol<sup>-1</sup>, respectively. The possible significance of these values is discussed together with the relationship between the value of ΔH<sup>⊖</sup> and various estimates of the absolute strengths of the individual metal-metal bonds.
Autori: | |
Data di pubblicazione: | 1984 |
Titolo: | Scrambling equilibria of some dimetal decacarbonyls |
Rivista: | JOURNAL OF THE CHEMICAL SOCIETY. DALTON TRANSACTIONS |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1039/DT9840000095 |
Volume: | 0 |
Appare nelle tipologie: | 2.1 Articolo su rivista |