X-ray crystal structure determinations of three stannic ethylenediaminetetr
aacetates are reported: Na[Sn(Edta)(OH)]. H2O, Ba[Sn(Edta)(OH)(2). 6H(2)O,
and NH4[Sn(Edta)F]. In all the compounds, the tin polyhedron is a one-cappe
d trigonal prism. The Sn-O distances are not equivalent: Two pairs of lengt
hened and two pairs of shortened bonds can be distinguished in each compoun
d.