THE ENTHALPY OF SUBLIMATION OF DIPHENYLACETYLENE FROM KNUDSEN EFFUSION STUDIES

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

Authors

DIOGO, HP (Author) Other; DAPIEDADE, MEM (Author) Other; FERNANDES, AC (Author) Other; SIMOES, JAM (Author) Other; DASILVA, MAVR (Author) FCUP; MONTE, MJS (Author) FCUP

Journal

Title: Thermochimica Acta

Vol. 228

Pages: 15-22

ISSN: 0040-6031

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 28 Citations

Scopus - 32 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-001-MF2

DOI: 10.1016/0040-6031(93)80269-g

Abstract (EN): The enthalpy of sublimation of diphenylacetylene at 298.15 K, DELTA(cr)g H(m)THETA (C2(C6H5)2] = 95.1 +/- 1.1 kJ mol-1, was derived from vapour pressure-temperature data, obtained with two different Knudsen effusion apparatus, and from heat capacity measurements obtained by differential scanning calorimetry. The molybdenum-diphenylacetylene bond dissociation enthalpy in Mo(eta5-C5H5)2[C2(C6H5)2] was reevaluated as 115 +/- 26 kJ mol-1, on the basis of the new value for DELTA(cr)g H(m)THETA C2(C6H5)2].

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8