Enthalpies of sublimation of M(eta(5)-C5H5)(2)Cl-2 (M = Ti, Zr, Hf, V, Nb,W) complexes

Authors
Diogo, HP da Piedade, MEM Goncalves, JM Monte, MJS da Silva, MAVR
Citation
Hp. Diogo et al., Enthalpies of sublimation of M(eta(5)-C5H5)(2)Cl-2 (M = Ti, Zr, Hf, V, Nb,W) complexes, EUR J INORG, (1), 2001, pp. 257-262
Citations number
44
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
14341948 → ACNP
Issue
1
Year of publication
2001
Pages
257 - 262
Database
ISI
SICI code
1434-1948(200101):1<257:EOSOM(>2.0.ZU;2-Q
Abstract
The standard molar enthalpies of sublimation of M(eta (5) C5H5)Cl-2 (M = Ti , V, Zr, Nb, Hf, and W) compounds, at 298.15 K, were determined by the Knud sen effusion method to be: 124.4+/-2.9 kJmol(-1) (M = Ti), 108.5+/-4.6 kJmo l(-1) (M = Zr), 110.2+/-2.9 kJmol(-1) (M = Hf), 140.1+/-7.4 kJmol(-1) (M = V) 127.4+/-4.4 kJmol(-1) (M = Nb), and 120.7+/-8.6 kJmol(-1) (M = W). The r esults obtained show a tendency to linearly decrease with increasing metal atomic radius.