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Enthalpies of Sublimation of M(η5-C5H5)2Cl2 (M = Ti, Zr, Hf, V, Nb, W) Complexes

✍ Scribed by Hermínio P. Diogo; Manuel E. Minas da Piedade; Jorge M. Gonçalves; Manuel J. S. Monte; Manuel A. V. Ribeiro da Silva

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
272 KB
Volume
2001
Category
Article
ISSN
1434-1948

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✦ Synopsis

The standard molar enthalpies of sublimation of M(η 5 -C 5 H 5 )Cl 2 (M = Ti, V, Zr, Nb, Hf, and W) compounds, at 298.15 K, were determined by the Knudsen effusion method to be: 124.4±2.9 kJmol -1 (M = Ti), 108.5±4.6 kJmol -1 (M =

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## Abstract Reaction of [(η^5^‐C~5~H~5~)(CO)~2~M=P=C(SiMe~3~)~2~] [where M = Mo (2), W (5)] with the phosphaalkene __t__BuP=C(NMe~2~)~2~ (1a) afforded the η^3^‐1,2‐diphosphaallyl complexes [(η^5^‐C~5~H~5~)(CO)~2~M{η^3^‐__t__BuPPC(SiMe~3~)~2~}], [where M = Mo (3a); M = W (6)]. Similarly, 2 and CyP=C