Reactions of potassium tris(3,5-dimethylpyrazolyl)borate (KTpb(Me2)) with t
he low-valent mixed-metal complex [(thf)(3)V(mu-Cl)(mu-tfa)(2)V(thf)(3)] [Z
nCl3(thf)] resulted first in ZnCl+ abstraction and tetramer formation, then
in asymmetric binuclear product formation through ligand substitution.