A tetragonal polymorph of bis[hydrotris(pyrazol-1-yl)borato]iron(II)

作者:Ni, Zhong Hai*; Li, Guo Ling; Ma, Rui; Nie, Jing
来源:Acta Crystallographica Section E-Structure Reports Online, 2011, 67: M1033-U341.
DOI:10.1107/S1600536811025839

摘要

The title compound, [Fe(C9H10BN6)(2)], is a polymorph of a compound reported previously [Oliver et al. (1980). Inorg. Chem. 19, 165-168]. In the previous report, the compound crystallized in the monoclinic space group P21/c (Z = 4), whereas the crystal symmetry of the compound reported here is tetragonal (P4(2)/ncm, Z = 4). The molecular structure is comprised of two hydrotris(1-pyrazolyl) borate ligands (Tp(-)) and a central Fe-II ion, which is coordinated by six pyrazole N atoms from two two Tp(-) ligands, yielding a distorted bipyramidal FeN6 geometry. The complete molecule exhibits symmetry 2/m.