The molecule shown below is lactide, a monomer for a common biodegradable plasti

Question

The molecule shown below is lactide, a monomer for a common biodegradable plastic polymer. It contains two chirality centers. Is the molecule itself chiral? In your answer, use symmetry operations that are present in the molecule that either support or refute chirality A research project here at Etown is focused on incorporating transition metal complexes into metal-organic frameworks. In brief, the absorption and emission properties of these complexes (due to their varying colors) provides a method to design porous sensors. The three complexes below are generalized structures for the systems being investigated. The following questions will pertain to these complexes. a. Name each complex above: Compound A: ___ Compound B: ___ Compound C: ___

Explanation / Answer

c. The molecule is not chiral as it has a centre of symmetry, a mirror plane (passing through the two alkyl groups), a S2 axis apart from a C2 axis.

3. Compound A: Tris(phen)ruthenium(II) ion

Compound B: Dicarbonyldichloro(phen)osmium(II)

Compound C: Tricarbonylmonochloro(phen)rhenium(I)

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