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Provide the structure of four compounds with the molecular formula C5H10O which give a strong absorption peak at 1700-1740 cm-1 in the infrared spectrum, but no significant peaks at 1600-1640 cm-1 .
Mood Disorder
Mood disorders are a category of mental health conditions that primarily affect a person's emotional state, causing disturbances in mood that interfere with daily life, such as depression and bipolar disorder.
Low Opinion
Holding a poor or negative evaluation of something or someone, often without high regard or respect.
Persistent Depressive Disorder
A long-term form of depression characterized by a depressed mood for most of the day, for more days than not, for at least two years.
Moderate Sadness
A mild to medium level of sorrow or unhappiness, often a natural reactive emotion to certain events or thoughts.
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