An unsymmetrical 3- and 5-substituted bis(azolyl)borate system, the sodium dihydrobis(3-trifluoromethyl-pyrazol-1-yl)(5-trifluoromethyl-pyrazol-1-yl)borate, Na[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)], has been synthesized by the reaction of 3-trifuoromethyl-pyrazole with Na[H(3)B(5-(CF(3))pz)] in toluene solution. Na[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)] reacts with AgNO(3) in the presence of triphenylphosphine to afford the silver(I) bis(phosphane) adduct ([H(2)B(3-(CF(3))pz)(5-(CF(3))pz)]Ag[P(C(6)H(5))(3)](2)). These compounds have been characterized by elemental analyses, FT-IR, ESI-MS and multinuclear NMR spectroscopy. Solid state structure of {[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)]Ag[P(C(6)H(5))(3)](2)} is also reported. It features a kappa(2)-N,N' bonded bis(pyrazolyl)borate ligand and a pseudo-tetrahedral silver center.
Unsymmetrical 3- and 5-substituted bis(pyrazolyl)borate system
PELLEI, Maura;SANTINI, Carlo
2008-01-01
Abstract
An unsymmetrical 3- and 5-substituted bis(azolyl)borate system, the sodium dihydrobis(3-trifluoromethyl-pyrazol-1-yl)(5-trifluoromethyl-pyrazol-1-yl)borate, Na[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)], has been synthesized by the reaction of 3-trifuoromethyl-pyrazole with Na[H(3)B(5-(CF(3))pz)] in toluene solution. Na[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)] reacts with AgNO(3) in the presence of triphenylphosphine to afford the silver(I) bis(phosphane) adduct ([H(2)B(3-(CF(3))pz)(5-(CF(3))pz)]Ag[P(C(6)H(5))(3)](2)). These compounds have been characterized by elemental analyses, FT-IR, ESI-MS and multinuclear NMR spectroscopy. Solid state structure of {[H(2)B(3-(CF(3))pz)(5-(CF(3))pz)]Ag[P(C(6)H(5))(3)](2)} is also reported. It features a kappa(2)-N,N' bonded bis(pyrazolyl)borate ligand and a pseudo-tetrahedral silver center.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
