Coordination Chemistry: Isomerism and Optical Activity

Practice flashcards covering geometrical and optical isomerism in coordination complexes such as Platinum, Chromium, and Cobalt compounds, focusing on optical activity and isomer identification.

$$cis-[PtCl_{2}(en)_{2}]^{+}$$

A coordination complex ion that exists as a pair of optical isomers, identified as dextro and laevo forms.

$$cis-[Cr(NH_{3})_{2}Cl_{2}(en)]^{+}$$

A complex ion containing ammonia, chloride, and ethylenediamine ligands that exhibits optical isomerism.

$$cis-[CoCl_{2}(en)_{2}]^{+}$$

A geometrical isomer of the bis(ethylenediamine)cobalt(III) chloride complex that is characterized as being optically active.

$$trans-[CoCl_{2}(en)_{2}]^{+}$$

A geometrical isomer of the bis(ethylenediamine)cobalt(III) chloride complex that is characterized as being optically inactive.

$dextro$ and $laevo$

Terms used to describe the two non-superimposable mirror image forms (enantiomers) of an optically active complex.

$$[Co(NH_{3})Cl(en)_{2}]^{2+}$$

A complex ion specifically listed in the notes for which all geometrical and optical isomers must be identified.

$$[Co(NH_{3})_{2}Cl_{2}(en)]^{+}$$

A coordination complex for which the drawing of all geometrical and optical isomers is required according to problem 11 (iii).

$$[Pt(NH_{3})(NH_{2}OH)(Py)(NH_{3})]$$

A square planar complex mentioned in section 5.12 that exhibits three isomers.