Complexes of heteroscorpionate trispyrazolylborate ligands. Part XI. Weak CH/p interactions in crystals of hydrotris(3-phenylpyrazolyl) boratothallium(I) and hydrobis(5-methyl-3-phenylpyrazolyl)(3,5- dimethylpyrazol-yl)boratothallium(I) studied by X-ray c

Thallium(I) complexes of heteroscorpionate hydrobis(3-phenyl-5-methylpyrazolyl)(3,5-dimethylpyrazol-yl)borate and hydrotris(3- phenylpyrazol-1-yl)borate were studied crystallographically. Both ligands were coordinated in k3 fashion via N2 atoms of pyrazol-1-yl moieties. Both compounds crystallize as centrosymmetric dimers in which weak CH/p intra- and interdimer interactions are responsible for arrangement in crystal structure. q 2003 Elsevier B.V. All rights reserved.