The vapour pressure and enthalpy of sublimation of ferrocene

Design and construction of a simple Knudsen Effusion Mass Spectrometer (KEMS) system for vapour pressure measurements of low volatility organics

“…Three compounds that had previously been measured by Knudsen mass-loss effusion, an absolute pressure technique, were chosen as reference samples. Ferrocene (Jacobs et al, 1983), Benzophenone and Diphenlyethane (Van Ekeren et al, 1982) each have vapour pressures in the range 1-0.1 Pa at 298 K A. M. Booth et al: Design and construction of a simple KEMS system which is high enough to have reasonable mass-loss data but low enough to provide a calibration for the low volatility compounds the KEMS was constructed for. Table 3 shows determinations of the vapour pressures of the each of the 3 reference compounds using the literature values of the other 2.…”

“…The error for oxalic acid is high as a result of the variation in the 3 calibration compounds used for its determination (Table 3). (Van Ekeren et al, 1982;Jacobs et al, 1983;Kruif et al, 1983) are shown. The values determined using the KEMS are also reported to illustrate internal consistency between calibration compounds.…”

Vapour pressures and enthalpies of vaporization of a series of the ferrocene derivatives

“…s -Edwards et al[5]; n -Jacobs et al[12]; mPelino et al[10]; h -Torres-Gomez et al[13]; j -Calado et al[11]; rBarkatin et al[7]; } -Monte et al[31]; d -this work.…”

“…Cyclopentadienyl derivatives of iron and other transition metals are of the great significance for catalysis of C-C single bond coupling and cleavage reactions [1] or as combustion catalysts. Despite the fact that numerous iron cyclopentadienyl derivatives are known, thermodynamic studies [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] have focused on ferrocene only. This paper deals with determinations of the saturated vapour pressures of ferrocene, ferrocene-methanol, benzyl-ferrocene, and benzoyl-ferrocene.…”

The (solid+vapor) equilibrium. A view from the arc

“…Straight lines are for class 2 data sets: (F) Fowler et al [14]; (M) Murata et al [15]; (Sa) Sato et al [16]; (G) Gildenblatt et al [17]; (MP) Macknick and Prausnitz [18]; (BC) Bradley and Cleasby [19]; (C) Colomina et al [20]; (Kr) de Kruif [21]; (E) van Ekeren et al [22]. [24]; (P) Pelino et al [25]; (S) Ribeiro da Silva and Monte [26]; (E1) and (E2) Edwards and Kington (series 1 and 2) [27]; (T) Torres-Gomez et al [28]. fixed such that ln f is (close to) 0 for the two extreme (T , p) pairs of all the constituting data sets.…”