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Solution thermochemical study of ligand substitution reaction of novel pyrrolyl-substituted tertiary phosphine ligands in the L(2)Fe(CO)(3) system

SA Serron and Steven Nolan (UGent)
(1996) INORGANICA CHIMICA ACTA. 252(1-2). p.107-113
Author
Organization
Abstract
The enthalpies of reaction of (BDA)Fe(CO)(3) (BDA = (C6H5)CH=CHC(O)CH3, benzylideneacetone) with a series of novel phosphine ligands, PPh(3-x)(pyrrolyl)(x) (x = 1-3) and P(pyrrolidinyl)(3), leading to the formation of (L)(2)Fe(CO)(3) complexes (L = phosphine) have been measured by solution calorimetry in THF at 50 degrees C. The range of reaction enthalpies spans some 32 kcal mol(-1). The overall relative order of stability established is as follows (PR(3); -Delta H, kcal mol(-1):P(NC4H4)(3) < P(NC4H4)(2)Ph < P(NC4H4)Ph(2) << P(NC4H8)(3). A quantitative analysis of ligand effect of the present and previously obtained data for L(2)Fe(CO)(3) complexes helps clarify the exact steric versus electronic ligand contributions to the enthalpy of reaction in this system. Furthermore, the present enthalpy information helps in the estimation of useful electronic parameters associated with the novel phosphine series.
Keywords
thermochemistry, ligand substitution, iron complexes, carbonyl complexes, pyrrolyl complexes, QUANTITATIVE-ANALYSIS, METAL-CARBONYLS, EFFECTS QALE, BENZYLIDENEACETONEIRON TRICARBONYL, ORGANORUTHENIUM THERMOCHEMISTRY, PHOSPHORUS LIGANDS, ELECTRONIC FACTORS, ENTHALPIES, BOND, COMPLEXES

Citation

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MLA
Serron, SA, and Steven Nolan. “Solution Thermochemical Study of Ligand Substitution Reaction of Novel Pyrrolyl-Substituted Tertiary Phosphine Ligands in the L(2)Fe(CO)(3) System.” INORGANICA CHIMICA ACTA, vol. 252, no. 1–2, 1996, pp. 107–13.
APA
Serron, S., & Nolan, S. (1996). Solution thermochemical study of ligand substitution reaction of novel pyrrolyl-substituted tertiary phosphine ligands in the L(2)Fe(CO)(3) system. INORGANICA CHIMICA ACTA, 252(1–2), 107–113.
Chicago author-date
Serron, SA, and Steven Nolan. 1996. “Solution Thermochemical Study of Ligand Substitution Reaction of Novel Pyrrolyl-Substituted Tertiary Phosphine Ligands in the L(2)Fe(CO)(3) System.” INORGANICA CHIMICA ACTA 252 (1–2): 107–13.
Chicago author-date (all authors)
Serron, SA, and Steven Nolan. 1996. “Solution Thermochemical Study of Ligand Substitution Reaction of Novel Pyrrolyl-Substituted Tertiary Phosphine Ligands in the L(2)Fe(CO)(3) System.” INORGANICA CHIMICA ACTA 252 (1–2): 107–113.
Vancouver
1.
Serron S, Nolan S. Solution thermochemical study of ligand substitution reaction of novel pyrrolyl-substituted tertiary phosphine ligands in the L(2)Fe(CO)(3) system. INORGANICA CHIMICA ACTA. 1996;252(1–2):107–13.
IEEE
[1]
S. Serron and S. Nolan, “Solution thermochemical study of ligand substitution reaction of novel pyrrolyl-substituted tertiary phosphine ligands in the L(2)Fe(CO)(3) system,” INORGANICA CHIMICA ACTA, vol. 252, no. 1–2, pp. 107–113, 1996.
@article{8171189,
  abstract     = {The enthalpies of reaction of (BDA)Fe(CO)(3) (BDA = (C6H5)CH=CHC(O)CH3, benzylideneacetone) with a series of novel phosphine ligands, PPh(3-x)(pyrrolyl)(x) (x = 1-3) and P(pyrrolidinyl)(3), leading to the formation of (L)(2)Fe(CO)(3) complexes (L = phosphine) have been measured by solution calorimetry in THF at 50 degrees C. The range of reaction enthalpies spans some 32 kcal mol(-1). The overall relative order of stability established is as follows (PR(3); -Delta H, kcal mol(-1):P(NC4H4)(3) < P(NC4H4)(2)Ph < P(NC4H4)Ph(2) << P(NC4H8)(3). A quantitative analysis of ligand effect of the present and previously obtained data for L(2)Fe(CO)(3) complexes helps clarify the exact steric versus electronic ligand contributions to the enthalpy of reaction in this system. Furthermore, the present enthalpy information helps in the estimation of useful electronic parameters associated with the novel phosphine series.},
  author       = {Serron, SA and Nolan, Steven},
  issn         = {0020-1693},
  journal      = {INORGANICA CHIMICA ACTA},
  keywords     = {thermochemistry,ligand substitution,iron complexes,carbonyl complexes,pyrrolyl complexes,QUANTITATIVE-ANALYSIS,METAL-CARBONYLS,EFFECTS QALE,BENZYLIDENEACETONEIRON TRICARBONYL,ORGANORUTHENIUM THERMOCHEMISTRY,PHOSPHORUS LIGANDS,ELECTRONIC FACTORS,ENTHALPIES,BOND,COMPLEXES},
  language     = {eng},
  number       = {1-2},
  pages        = {107--113},
  title        = {Solution thermochemical study of ligand substitution reaction of novel pyrrolyl-substituted tertiary phosphine ligands in the L(2)Fe(CO)(3) system},
  url          = {http://dx.doi.org/10.1016/S0020-1693(96)05303-0},
  volume       = {252},
  year         = {1996},
}

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