20859-51-2Relevant academic research and scientific papers
Spontaneous formation of heteroligated PtII Complexes with chelating hemilabile ligands
Ulmann, Pirmin A.,Brown, Aaron M.,Ovchinnikov, Maxim V.,Mirkin, Chad A.,Dipasquale, Antonio G.,Rheingold, Arnold L.
, p. 4529 - 4534 (2007)
The spontaneous formation of the heteroligated complex [PtCl(κ 2-Ph2PCH2CH2SMe)(Ph 2PCH2CH2SPh)]-Cl (8a) by a novel ligand rearrangement process has been observed. By using the w
Solvent and temperature induced switching between structural isomers of RhI phosphinoalkyl thioether (PS) complexes
Wiester, Michael J.,Braunschweig, Adam B.,Yoo, Hyojong,Mirkin, Chad A.
experimental part, p. 7188 - 7196 (2010/09/17)
To develop functional systems based on the weak-link approach (WLA), it is important to understand how solvent and ligand binding strength alter the coordination geometry of complexes formed from this method. A series of phosphinoalkyl thioether (PS) hemi
Convenient methods for the synthesis of a library of hemilabile phosphines
Jimenez, M. Victoria,Perez-Torrente, Jesus J.,Bartolome, M. Isabel,Oro, Luis A.
experimental part, p. 1916 - 1922 (2009/12/28)
A series of novel functionalized phosphines of hemilabile character, R 2P(CH2)nZ, have been prepared from diarylphosphines using several synthetic methodologies. The synthetic methods include the alkylation of lithium diar
Synthesis and structural studies of rhodium complexes of phosphorus-sulfur ligands
Dick, David G.,Stephan, Douglas W.
, p. 1870 - 1875 (2007/10/02)
Rhodium complexes of the phosphorus-sulfur ligands, 2-diphenylphosphinoethyl methyl sulfide (MeSP), 1, and 2-diphenylphosphinothiophene (PTH), 2, have been prepared and studied by single crystal X-ray diffraction methods. BF4*H2O, 3, crystallizes in the space group P21/n with a = 16.939(6) Angstroem, b = 17.152(5) Angstroem, c = 12.049(9) Angstroem, β = 106.50(4) deg, and Z = 4.The MeSP ligands chelate to Rh yielding a distorted square-planar geometry.The disposition of the methyl groups on the cis sulfur atoms is transoid.Average Rh-P and Rh-S bond distances were found to be 2.225(3) and 2.347(3) Angstroem, respectively. BF4, 4, crystallizes in the space group Cc with a = 15.862(2) Angstroem, b = 15.112(3) Angstroem, c = 16.029(3) Angstroem, β = 103.21(1) deg, and Z = 4.The Rh atom in 4 also has essentially a square-planar coordination geometry. 2 does not chelate but rather is monohapto through phosphorus.Rh-P distances of 2.319(3) and 2.378(3) Angstroem and Rh-C distances of 2.17(1), 2.22(1), 2.24(1), and 2.27(1) Angstroem were found.The small variations in the Rh-P and Rh-C bonds distances appear to be a result of steric interactions between 2 and the COD ligand.
Cyanide complexes of nickel(II) with hybrid bidentate ligands containing phosphorus and nitrogen or sulfur donor atoms
Rigo,Bressan
, p. 1491 - 1494 (2007/10/06)
Nickel cyanide complexes of the types [Ni(CN)2(ligand)2] and [Ni(CN)2(ligand)3] derived from the four hybrid bidentate ligands 1-(2′-pyridyl)-2-(diphenylphosphino)ethane, 1-(thiomethyl)-2-(diphenylphosphino)ethane, 1-(thioethyl)-2-(diphenylphosphino)ethane, and 1-(thiophenyl)-2-(diphenylphosphino)ethane are described. The complexes [Ni(CN)2(ligand)2] can be four- or five-coordinate. In the first case the bidentate ligands act as monodentate groups by bonding only through phosphorus donor atoms, whereas in the five-coordinate complexes both mono- and bidentate types of coordination of the ligands are involved. The complexes [Ni(CN)2(ligand)2] in solution can react with an excess of ligand to give five-coordinate species of the type [Ni(CN)2(ligand)3], in which only the phosphorus end of the ligand is bonded to the metal atom. The coordination number and stereochemistry of the complexes have been established on the basis of spectroscopic, conductivity, and molecular weight measurements. With the ligands containing phosphorus and sulfur, five-coordinate cationic complexes of formula [Ni(CN)(ligand)2]+ are also obtained, for which, on the basis of the visible spectra, a square-pyramidal structure is proposed.
