How many geometric isomers are possible for the complex [CrF₃Br₃]₃?

Spinach contains a lot of iron but is not a good source of dietary iron because nearly all the iron is tied up in the oxalate complex [Fe(C₂O₄)₃]^3-.

(d) Draw the structure of [Fe(C₂O₄)₃]^3-. Is the complex chiral or achiral?

Cobalt(III) trifluoroacetylacetonate, Co(tfac)₃, is a sixc oordinate, octahedral metal chelate in which three planar, bidentate tfac ligands are attached to a central Co atom:

(a) Draw all possible diastereoisomers and enantiomers of Co(tfac)₃.

Cobalt(III) trifluoroacetylacetonate, Co(tfac)₃, is a sixcoordinate, octahedral metal chelate in which three planar, bidentate tfac ligands are attached to a central Co atom:

(b) Diastereoisomers A and B have dipole moments of 6.5 D and 3.8 D, respectively. Which of your diastereoisomers is A and which is B?

Which of the complexes or complex ions has geometric (cis or trans) isomers?

Which of the following two substances are made of the same element but conformed in different ways?

Which of the following complexes are chiral?

(a) Pt(en)Cl₂

(b) cis-[Co(NH₃)₄Br₂]+

(c) cis-[Cr(en)₂(H₂O)₂]³⁺

(d) [Cr(C₂O₄)₃]^3-