Trans configuration
from class:
Intro to Chemistry
Definition
Trans configuration describes a type of geometric isomerism in coordination complexes where two identical ligands are positioned across from each other, at a 180-degree angle. This arrangement contrasts with the cis configuration, where identical ligands are adjacent.
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5 Must Know Facts For Your Next Test
- In a trans configuration, the bond angles between the identical ligands and the central metal atom are 180 degrees.
- Trans configurations can influence the physical properties and reactivity of coordination compounds differently compared to cis configurations.
- The trans effect is a phenomenon observed in square planar complexes where certain ligands can direct substitution reactions preferentially to occur trans to themselves.
- Trans isomers generally have different solubility, melting points, and boiling points compared to their cis counterparts due to differences in molecular symmetry.
- Stereoisomerism, including trans configurations, plays a crucial role in the biological activity and industrial applications of coordination compounds.
Review Questions
- What is the bond angle between identical ligands in a trans configuration?
- How does the trans effect influence substitution reactions in square planar complexes?
- In what ways do physical properties differ between trans and cis configurations?
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