Synthesis and characterization of linear and square-planar nickel complexes with primary amido ligands.
The synthesis and characterization of the two homoleptic mononuclear nickel complexes (2,6-Dipp2C6H3NH)2Ni ( 1) and [2-C(H)NDippC6H4NH] 2Ni (2) (Dipp = 2,6-Pr(i)2C6H3) are described. 1 is formally two-coordinate and adopts a strictly linear geometry, while 2 features a slightly distorted square-planar geometry. Electrochemistry of 1 and 2 shows that they can be reduced to the corresponding nickel(I) species and oxidized to the corresponding nickel(III) species reversibly or quasi-reversibly. A solid-state magnetic measurement (mu(eff )= 2.79 mu(B)) for paramagnetic 1 indicates the presence of two unpaired electrons on the nickel center.
Li
Jianfeng
J
State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, People's Republic of China.
Song
Haibin
H
Cui
Chunming
C
Cheng
Jin-Pei
JP