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Synthesis and Characterization of Diphenyl-2-thienylphosphine Derivatives

King, Jason D; Monari, Magda and Nordlander, Ebbe LU (1999) In Journal of Organometallic Chemistry 573(1-2). p.272-278
Abstract
The reaction of [Co2{μ-C2(CO2Me)2}(CO)6] with the ligand diphenyl-2-thienylphosphine, PPh2(C4H3S), yields the complexes [Co2{μ-C2(CO2Me)2}(CO)5{PPh2(C4H3S)}] (1) and [Co2{μ-C2(CO2Me)2}(CO)4{PPh2(C4H3S)}2] (2). The related complex [Co3(μ3CMe)(CO)9] reacts with the same ligand to give [Co3(μ3-CMe)(CO)8{PPh2(C4H3S)}] (3) and [Co3(μ3-CMe)(CO)7{PPh2(C4H3S))2] (4). Thermolysis of 1 at 80°C leads to partial conversion of 1 into 2, which is isolated in low yield. Similarly, thermolysis of 3 at 70°C results in partial conversion of 3 to 4. Coordination of the thienyl unit of the diphenyl-2-thienylphosphine ligand to cobalt could not be detected in these thermolyses. Complexes 1–4 have been completely characterized and the crystal structure of... (More)
The reaction of [Co2{μ-C2(CO2Me)2}(CO)6] with the ligand diphenyl-2-thienylphosphine, PPh2(C4H3S), yields the complexes [Co2{μ-C2(CO2Me)2}(CO)5{PPh2(C4H3S)}] (1) and [Co2{μ-C2(CO2Me)2}(CO)4{PPh2(C4H3S)}2] (2). The related complex [Co3(μ3CMe)(CO)9] reacts with the same ligand to give [Co3(μ3-CMe)(CO)8{PPh2(C4H3S)}] (3) and [Co3(μ3-CMe)(CO)7{PPh2(C4H3S))2] (4). Thermolysis of 1 at 80°C leads to partial conversion of 1 into 2, which is isolated in low yield. Similarly, thermolysis of 3 at 70°C results in partial conversion of 3 to 4. Coordination of the thienyl unit of the diphenyl-2-thienylphosphine ligand to cobalt could not be detected in these thermolyses. Complexes 1–4 have been completely characterized and the crystal structure of complex 4 has been determined. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cobalt, Carbonyl, Polyfunctional phosphine, Crystal structure
in
Journal of Organometallic Chemistry
volume
573
issue
1-2
pages
272 - 278
publisher
Elsevier
external identifiers
  • scopus:0000996286
ISSN
0022-328X
DOI
10.1016/S0022-328X(98)00833-X
language
English
LU publication?
yes
id
453e0434-a970-486a-a80e-c3220e436e27 (old id 959731)
date added to LUP
2008-08-15 13:04:38
date last changed
2017-01-01 07:05:14
@article{453e0434-a970-486a-a80e-c3220e436e27,
  abstract     = {The reaction of [Co2{μ-C2(CO2Me)2}(CO)6] with the ligand diphenyl-2-thienylphosphine, PPh2(C4H3S), yields the complexes [Co2{μ-C2(CO2Me)2}(CO)5{PPh2(C4H3S)}] (1) and [Co2{μ-C2(CO2Me)2}(CO)4{PPh2(C4H3S)}2] (2). The related complex [Co3(μ3CMe)(CO)9] reacts with the same ligand to give [Co3(μ3-CMe)(CO)8{PPh2(C4H3S)}] (3) and [Co3(μ3-CMe)(CO)7{PPh2(C4H3S))2] (4). Thermolysis of 1 at 80°C leads to partial conversion of 1 into 2, which is isolated in low yield. Similarly, thermolysis of 3 at 70°C results in partial conversion of 3 to 4. Coordination of the thienyl unit of the diphenyl-2-thienylphosphine ligand to cobalt could not be detected in these thermolyses. Complexes 1–4 have been completely characterized and the crystal structure of complex 4 has been determined.},
  author       = {King, Jason D and Monari, Magda and Nordlander, Ebbe},
  issn         = {0022-328X},
  keyword      = {Cobalt,Carbonyl,Polyfunctional phosphine,Crystal structure},
  language     = {eng},
  number       = {1-2},
  pages        = {272--278},
  publisher    = {Elsevier},
  series       = {Journal of Organometallic Chemistry},
  title        = {Synthesis and Characterization of Diphenyl-2-thienylphosphine Derivatives},
  url          = {http://dx.doi.org/10.1016/S0022-328X(98)00833-X},
  volume       = {573},
  year         = {1999},
}