The first crystallographically established bis-qtpy (qtpy=2,2 ': 6 ',2 '': 6 ',2 '''-quaterpyridine) metal complex

The first example of a crystallographically established bis-adduct of tridentate 2,2':6',2:6',2'-quaterpyridine (qtpy) of formula [Fe(qtpy)(2)][ClO4](2) has been obtained by treating an aqueous solution of iron(II) perchlorate with the ligand in the presence of triethylamine.