Formation of aminoxy and oxo complexes from the reaction of Nb(NMe2)5 with O2 and the crystal structure of Nb(NEt2)5.
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.
Chen
Shu-Jian
SJ
Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA.
Zhang
Jian
J
Yu
Xianghua
X
Bu
Xianhui
X
Chen
Xue-Tai
XT
Xue
Zi-Ling
ZL