| 21. | Basic bonding and steric effects are at times insufficient to explain many structures, properties, and reactivity.
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| 22. | The different geometries along the rotation paths can be rationalized in terms of mesomeric and steric effects ."
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| 23. | Then the first push-pull diarylaminyls were synthesized and shown to have stabilities depending both on electronic and steric effects.
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| 24. | Due to steric effects, second-order Markov effects may also play a role in the growth of some polymer chains.
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| 25. | The Simmons Smith reaction is generally subject to steric effects, and thus cyclopropanation usually takes place on the less hindered face.
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| 26. | In Figure 3, 1 is favored over 2 due to the large steric effect in 2 from the two phenyl groups.
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| 27. | However, the steric effect makes it more difficult for the molecule to achieve the rearrangement transition state and form AD +.
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| 28. | 2, 6-Lutidine is weakly nucleophilic, due to the steric effects of the two methyl groups on the ring nitrogen.
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| 29. | Similarly to the Hammett ? value, the magnitude of ? will reflect to what extent a reaction is influenced by steric effects:
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| 30. | "' Steric effects "'arise from a fact that each atom within a molecule occupies a certain amount of space.
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