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Substitution Kinetics of Palladium Pincer Complexes

Lawal, Nasir Sallau LU (2012) KEMR12 20121
Department of Chemistry
Abstract
The substitution reaction of complexes, (PCNR)PdCl, where R = (methyl) (1), (ethyl) (2) and(propyl) (3), with iodide where studied in 1-10 mM LiCl in methanol. The substitution was followed under pseudo first order conditions with an excess of incoming and leaving ligand. The high reactivity of complex 1 was attributed to the low steric bulkiness of the methyl substituent. The order of reactivity of the complexes followed 1 > 2 ≈ 3. The large negative values reported for entropy of activation for the complexes confirmed an associative substitution mode. The substitution reaction proceeds via the solvolytic pathway.
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author
Lawal, Nasir Sallau LU
supervisor
organization
course
KEMR12 20121
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Oorganisk kemi
language
English
id
3053658
date added to LUP
2012-09-19 11:51:43
date last changed
2012-09-19 11:51:43
@misc{3053658,
  abstract     = {The substitution reaction of complexes, (PCNR)PdCl, where R = (methyl) (1), (ethyl) (2) and(propyl) (3), with iodide where studied in 1-10 mM LiCl in methanol. The substitution was followed under pseudo first order conditions with an excess of incoming and leaving ligand. The high reactivity of complex 1 was attributed to the low steric bulkiness of the methyl substituent. The order of reactivity of the complexes followed 1 > 2 ≈ 3. The large negative values reported for entropy of activation for the complexes confirmed an associative substitution mode. The substitution reaction proceeds via the solvolytic pathway.},
  author       = {Lawal, Nasir Sallau},
  keyword      = {Oorganisk kemi},
  language     = {eng},
  note         = {Student Paper},
  title        = {Substitution Kinetics of Palladium Pincer Complexes},
  year         = {2012},
}