Crystal structures of<i>trans</i>-dichloridotetrakis[1-(2,6-diisopropylphenyl)-1<i>H</i>-imidazole-κ<i>N</i><sup>3</sup>]iron(II),<i>trans</i>-dibromidotetrakis[1-(2,6-diisopropylphenyl)-1<i>H</i>-imidazole-κ<i>N</i><sup>3</sup>]iron(II) and<i>trans</i>-dibromidotetrakis[1-(2,6-diisopropylphenyl)-1<i>H</i>-imidazole-κ<i>N</i><sup>3</sup>]iron(II) diethyl ether disolvate
Acta crystallographica. Section E