C. Janiak et al., Hydrotris(indazolyl)borate, Tp(4Bo) a surprisingly effective Tp ligand forsupramolecular assembly, INORG CH C, 3(6), 2000, pp. 271-275
The assembly of T1Tp(4Bo) and M(Tp(4Bo))(2) (M e.g. Co, Ni) in the crystal
is dictated by aromatic pi-pi and C-H ...pi interactions. This leads to the
formation of chiral C-2-symmetrical pairs (for T1) or solvent-filled, abou
t 30%-porous, non-covalent framework structures (for Co and Ni). The potass
ium salt KTp(4Bo) features a kappa N,eta-C-C,eta(2)-C-N cation-pi coordinat
ion mode - curious for a Tp-type ligand. (C) 2000 Elsevier Science S.A. All
rights reserved.