VAPOR-PRESSURES AND STANDARD MOLAR ENTHALPY OF SUBLIMATION OF CRYSTALLINE TRIS(PENTANE-2,4-DIONATO)RUTHENIUM(III)

• Type: Article in International Scientific Journal
• Date: 1993

Authors

DASILVA, MAVR (Author) FCUP; GIERA, E (Author) Other; MONTE, MJS (Author) FCUP

Journal

Title: Journal of Alloys and Compounds

Vol. 197

Pages: 105-107

ISSN: 0925-8388

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 8 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-001-MYQ

Abstract (EN): The Knudsen mass loss effusion technique was used to measure the vapour pressure of crystalline tris(pentane-2,4-dionato)ruthenium(III) as a function of temperature between 398.18 and 413.15 K using three different effusion holes. From the temperature dependence of the vapour pressure, the standard molar enthalpy of sublimation at the mean temperature of the experimental temperature range, 405.7 K, was derived as 139.7 +/- 2.5 kJ mol-1. Using an estimated value of DELTA(cr)gC(p)o = -50 J K-1 mol-1, the standard molar enthalpy of sublimation at 298.15 K was calculated as 145.1 +/- 2.5 kJ mol-1.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3