Inorganic Chemistry, Vol.49, No.9, 4017-4022, 2010
Formation of Aminoxy and Oxo Complexes from the Reaction of Nb(NMe2)(5) with O-2 and the Crystal Structure of Nb(NEt2)(5)
The reaction of Nb(NMe2)(5) with O-2 gives three complexes monomeric (Me2N)nNb(eta(2)-ONMe2)(5-n) (n = 3, 4) and dimeric (Me2N)(4)Nb2[eta(2)-N(Me)CH2NMe2](2)(mu-O)(2) Nb(NEt2)(5) was prepared in a mixture of pentane and THF, leading to its purification and characterization by single-crystal X-ray diffraction. Unlike Nb(NMe2)5, which adopts a square pyramidal structure, Nb(NEt2)(5) is a distorted trigonal bipyramid The reaction of Nb(NEt2)(5) with O-2 gives an insoluble white solid