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Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH

Otto, S ; Ionescu, Adriana LU and Roodt, A (2005) In Journal of Organometallic Chemistry 690(19). p.4337-4342
Abstract
Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide), reacts accordingly with KSeCN, albeit significantly slower. The crystal structure of Se = PTA, 1, and [Se = PTA-Me]I - CH3OH, 2, revealed P = Se bond distances of 2.0991(19) and 2.100(2) angstrom, respectively. The first order phosphorous selenium coupling constants, (1)J(P-Se) (D2O), of 722 and 788 Hz for Se = PTA and [Se = PTA-Me]I,... (More)
Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide), reacts accordingly with KSeCN, albeit significantly slower. The crystal structure of Se = PTA, 1, and [Se = PTA-Me]I - CH3OH, 2, revealed P = Se bond distances of 2.0991(19) and 2.100(2) angstrom, respectively. The first order phosphorous selenium coupling constants, (1)J(P-Se) (D2O), of 722 and 788 Hz for Se = PTA and [Se = PTA-Me]I, respectively, indicates the latter is significantly less electron rich. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
crystal structures, PTA, phosphine selenides
in
Journal of Organometallic Chemistry
volume
690
issue
19
pages
4337 - 4342
publisher
Elsevier
external identifiers
  • wos:000231939900015
  • scopus:24144453429
ISSN
0022-328X
DOI
10.1016/j.jorganchem.2005.07.004
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Inorganic chemistry (ceased) (LUR000010)
id
2c5aa2ee-40c7-4ec1-8f38-acbd25ae9ddc (old id 224010)
date added to LUP
2016-04-01 16:11:54
date last changed
2022-01-28 18:01:17
@article{2c5aa2ee-40c7-4ec1-8f38-acbd25ae9ddc,
  abstract     = {{Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide), reacts accordingly with KSeCN, albeit significantly slower. The crystal structure of Se = PTA, 1, and [Se = PTA-Me]I - CH3OH, 2, revealed P = Se bond distances of 2.0991(19) and 2.100(2) angstrom, respectively. The first order phosphorous selenium coupling constants, (1)J(P-Se) (D2O), of 722 and 788 Hz for Se = PTA and [Se = PTA-Me]I, respectively, indicates the latter is significantly less electron rich.}},
  author       = {{Otto, S and Ionescu, Adriana and Roodt, A}},
  issn         = {{0022-328X}},
  keywords     = {{crystal structures; PTA; phosphine selenides}},
  language     = {{eng}},
  number       = {{19}},
  pages        = {{4337--4342}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Organometallic Chemistry}},
  title        = {{Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH}},
  url          = {{http://dx.doi.org/10.1016/j.jorganchem.2005.07.004}},
  doi          = {{10.1016/j.jorganchem.2005.07.004}},
  volume       = {{690}},
  year         = {{2005}},
}