Tetrakis(ethylenediamine)yttrium(III) Hydrosulfide Iodide

An yttrium hydrosulfide complex, [Y(H 2 NCH 2 CH 2 NH 2 ) 4 ](SH) 2.72 I 0.28 , was synthesized by solvothermal methods. The Y(en) 4 3+ and SH - ions are well separated, and the Y atom is coordinated in a distorted square antiprism by the eight N atoms and lies on a twofold axis. The Y-N distances are in the range 2.488 (4)-2.520 (4) A. There are two hydrosulfide sites, the one on the twofold axis being partially occupied by an iodide ion.