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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
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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
2016-04-01 16:26:15
date last changed
2025-04-04 15:15:09
@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}},
  keywords     = {{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}},
  doi          = {{10.1016/S0022-328X(98)00833-X}},
  volume       = {{573}},
  year         = {{1999}},
}