1073256-35-5Relevant academic research and scientific papers
Cu(I) complexes bearing the new sterically demanding and coordination flexible tris(3-phenyl-1-pyrazolyl)methanesulfonate ligand and the water-soluble phosphine 1,3,5-triaza-7-phosphaadamantane or related ligands
Wanke, Riccardo,Smolenski, Piotr,Guedes Da Silvan, M. Fatima C.,Martins, Luisa M. D. R. S.,Pombeiro, Armando J. L.
, p. 10158 - 10168 (2009/05/16)
The new sterically hindered scorpionate tris(3-phenylpyrazolyl) methanesulfonate (TpmsPh)- has been synthesized and its coordination behavior toward a Cu(I) center, in the presence of 1,3,5-triaza-7-phosphaadamantane (PTA), N-methyl-1,3,5-triaza-7- phosphaadamantane tetraphenylborate ((mPTA)[BPh4]) or hexamethylenetetramine (HMT) has been studied. The reaction between Li(Tpms Ph) (1) and [Cu(MeCN)4][PF6] yields [Cu(TpmsPh)(MeCN)] (2) which, upon further acetonitrile displacement on reaction with PTA, HMT, or (mPTA)[BPh4], gives the corresponding complexes [Cu(TpmsPh)(PTA)] (3), [Cu(TpmsPh)(HMT)] (4), and [Cu(TpmsPh)(mPTA)][PF6] (5). All the compounds have been characterized by 1H, 31P, 13C, COSY or HMQC-NMR, IR, elemental analysis, and single crystal X-ray diffraction. In the complexes (3) and (5), which bear a phosphine ligand (i.e., PTA and mPTA, respectively), the new scorpionate ligand shows the typical N,N,N-coordination mode, whereas in (2) and (4), bearing a N-donor ligand (i.e., MeCN and HMT, respectively), it binds the metal via the N,N,O chelating mode, involving the sulfonate moiety.
