title: Formation of aminoxy and oxo complexes from the reaction of Nb(NMe2)5 with O2 and the crystal structure of Nb(NEt2)5.
abstract: The reaction of Nb(NMe(2))(5) with O(2) gives three complexes: monomeric (Me(2)N)(n)Nb(eta(2)-ONMe(2))(5-n) (n = 3, 4) and dimeric (Me(2)N)(4)Nb(2)[eta(2)-N(Me)CH(2)NMe(2)](2)(mu-O)(2). Nb(NEt(2))(5) was prepared in a mixture of pentane and THF, leading to its purification and characterization by single-crystal X-ray diffraction. Unlike Nb(NMe(2))(5), which adopts a square pyramidal structure, Nb(NEt(2))(5) is a distorted trigonal bipyramid. The reaction of Nb(NEt(2))(5) with O(2) gives an insoluble white solid.
authors.affiliation: Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA.
authors.forename: Shu-Jian
authors.initials: SJ
authors.lastname: Chen
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Xianghua
authors.initials: X
authors.lastname: Yu
authors.forename: Xianhui
authors.initials: X
authors.lastname: Bu
authors.forename: Xue-Tai
authors.initials: XT
authors.lastname: Chen
authors.forename: Zi-Ling
authors.initials: ZL
authors.lastname: Xue