Hydroxyl

A hydroxyl or hydroxy group is a chemical functional group containing one oxygen atom connected by a covalent bonding to one hydrogen atom (−OH). It is sometimes called the alcohol functional group because when bonded to carbon in a molecule that otherwise contains only hydrogen and carbon the hydroxy (not hydroxyl) group defines the molecule as an alcohol, resulting in a name ending in -ol. A hydroxyl group bonded covalently to the carbon of a carbonyl group (C=O) produces a carboxyl group (C(O)OH) that is the defining group of a carboxylic acid. When the −OH group participates in an ionic bond, the [OH] anion is called the hydroxide ion. As a free radical, it is the hydroxyl radical.

Hydroxy group

According to IUPAC rules the term hydroxyl refers to the radical OH only, while the functional group −OH is called hydroxy group.

The oxygen atom in the hydroxy group is much more electronegative than the hydrogen, so that the electrons are closer to the oxygen atom. Similar to water, compounds containing the hydroxy group are capable of forming hydrogen bonds. Primary alcohols are miscible with water. In complex compounds, the portion of the molecule containing the hydroxy group is hydrophilic.

Oh! (Girls' Generation album)

Oh! is the second studio album by the South Korean girl group Girls' Generation. It was released on January 28, 2010 in Korea. It features the lead single "Oh!". A repackaged version, Run Devil Run was released in March 2010, with new track "Run Devil Run" as the lead track.

The album is listed by Gaon Albums Chart as the second best-selling album of 2010 in South Korea, with 197,934 copies sold, and the repackaged version at fourth with 136,851 copies.

History

Initial interest in the album was high, as physical and online pre-orders of the album totaled 150,000 copies. On its first day of sale, Oh! sold 30,000 copies. The album was released internationally via iTunes on February 8, 2010.

The group began promoting their album on MBC's Music Core on January 30. The group also performed "Show! Show! Show!" as a part of their special comeback performance on Music Core and SBS's Inkigayo.

Upon the album's full release, various album tracks charted in the top ten of various charts.

Oh! (Pink Lady song)

"Oh!" was the 22nd single (and last official single before their break-up) of Pink Lady. The single was released on March 5, 1981.

It sold 200,000 copies.

A re-recorded version of the song was included on the 2-disc greatest hits release, Innovation, released in December of 2010.

Track listing

All tracks composed by Shunichi Tokura, lyrics written by Yū Aku.

  • "OH!"
  • "Muchuu Gaichiban Utsukushii"
  • Chart positions

    References


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