• Thumbnail for Singlet oxygen
    Singlet oxygen, systematically named dioxygen(singlet) and dioxidene, is a gaseous inorganic chemical with the formula O=O (also written as 1 [O 2] or...
    29 KB (2,967 words) - 22:27, 24 November 2024
  • Thumbnail for Oxygen
    common organic molecules than is normal (triplet) molecular oxygen. In nature, singlet oxygen is commonly formed from water during photosynthesis, using...
    115 KB (11,980 words) - 00:50, 7 May 2025
  • Thumbnail for Triplet oxygen
    making triplet oxygen an unusual example of a stable and commonly encountered diradical: it is more stable as a triplet than a singlet. According to molecular...
    9 KB (894 words) - 20:49, 6 December 2024
  • Thumbnail for Photoinhibition
    have been suggested. Reactive oxygen species, especially singlet oxygen, have a role in the acceptor-side, singlet oxygen and low-light mechanisms. In...
    31 KB (3,786 words) - 22:07, 18 May 2024
  • (O3). Others are: Atomic oxygen (O1), a free radical. Singlet oxygen (O* 2), one of two metastable states of molecular oxygen. Tetraoxygen (O4), another...
    12 KB (1,339 words) - 12:33, 20 March 2025
  • Thumbnail for Trioxidane
    singlet oxygen: The reverse reaction, the addition of singlet oxygen to water, typically does not occur in part due to the scarcity of singlet oxygen...
    9 KB (903 words) - 13:28, 13 December 2024
  • Thumbnail for Reactive oxygen species
    hydroperoxide (H2O2), superoxide (O2−), hydroxyl radical (OH.), and singlet oxygen(1O2). ROS are pervasive because they are readily produced from O2, which...
    71 KB (8,508 words) - 16:49, 23 April 2025
  • Thumbnail for DABCO
    peroxide and sulfur dioxide. DABCO and related amines are quenchers of singlet oxygen and effective antioxidants, and can be used to improve the lifetime...
    8 KB (742 words) - 15:07, 8 February 2025
  • Thumbnail for Photodynamic therapy
    transfer from a substrate molecule and highly reactive state of oxygen known as singlet oxygen (Type II). PDT is a multi-stage process. First a photosensitiser...
    80 KB (9,544 words) - 02:55, 1 March 2025
  • shirt or vest wrestling singlet, a one-piece garment specific to wrestling BID/60, a British encryption machine Singlet oxygen, the common name used for...
    643 bytes (127 words) - 08:50, 7 April 2024
  • Thumbnail for 1,3-Diphenylisobenzofuran
    the determination of singlet oxygen, even in biological systems. Cycloadditions with 1,3-diphenylisobenzofuran and subsequent oxygen cleavage provide access...
    20 KB (1,977 words) - 10:22, 6 March 2025
  • the first and second excited states of dioxygen are both states of singlet oxygen. Each has two electrons of opposite spin in the π* level so that S =...
    7 KB (814 words) - 01:05, 8 April 2025
  • Thumbnail for Chemical oxygen iodine laser
    heat, potassium chloride, and oxygen in excited state, singlet delta oxygen. Spontaneous transition of excited oxygen to the triplet sigma ground state...
    5 KB (596 words) - 02:47, 14 December 2024
  • Thumbnail for 9-Hydroxyoctadecadienoic acid
    cholesterol, and other lipids, and since free-radical and singlet-oxygen reactions may occur together, oxygen-stressed tissues often contain an array of free and...
    29 KB (3,702 words) - 01:43, 11 December 2023
  • Thumbnail for Verteporfin
    wavelength of 689 nm in the presence of oxygen, produces highly reactive short-lived singlet oxygen and other reactive oxygen radicals, resulting in local damage...
    8 KB (616 words) - 11:03, 12 January 2025
  • Thumbnail for Photooxygenation
    the antibonding orbitals occupy a degenerate π* orbital, and oxygen is now in a singlet state (indicated as 1O2). 1O2 is very reactive with a lifetime...
    14 KB (1,674 words) - 02:44, 29 November 2024
  • Thumbnail for Radical (chemistry)
    centers. Dioxygen (O2) is an important example of a stable diradical. Singlet oxygen, the lowest-energy non-radical state of dioxygen, is less stable than...
    41 KB (4,606 words) - 05:39, 5 May 2025
  • Thumbnail for Alkene
    undergo reaction with reactive oxygen species generated by the photosensitiser, such as hydroxyl radicals, singlet oxygen or superoxide ion. Reactions of...
    49 KB (5,266 words) - 19:46, 1 May 2025
  • Thumbnail for Oxidative stress
    arachidonic acid and linoleic acid, are primary targets for free radical and singlet oxygen oxidations. For example, in tissues and cells, the free radical oxidation...
    52 KB (6,032 words) - 23:20, 25 April 2025
  • Thumbnail for 13-Hydroxyoctadecadienoic acid
    radicals and singlet oxygen, most or all of these products may form together in tissues undergoing oxidative stress. Free radical and singlet oxygen oxidations...
    67 KB (7,853 words) - 21:38, 20 April 2025
  • Thumbnail for Ozone
    Ozone (redirect from Oxygen 3)
    appear to be additive. Ozone, along with reactive forms of oxygen such as superoxide, singlet oxygen, hydrogen peroxide, and hypochlorite ions, is produced...
    150 KB (18,239 words) - 16:32, 4 May 2025
  • Thumbnail for Carotene
    plant tissues by helping to absorb the energy from singlet oxygen, an excited form of the oxygen molecule O2 which is formed during photosynthesis. β-Carotene...
    23 KB (2,691 words) - 22:02, 7 February 2025
  • triplet ground state and Vaska's complex is a singlet, the reaction is slower than when singlet oxygen is used. The magnetic properties of some η2-O2...
    10 KB (1,086 words) - 09:15, 26 February 2025
  • Thumbnail for Excited state
    states are often called metastable. Long-lived nuclear isomers and singlet oxygen are two examples of this.[citation needed] Atoms can be excited by heat...
    9 KB (955 words) - 19:37, 16 April 2025
  • PMID 12481128. S2CID 27486669. Krieger-Liszkay A (January 2005). "Singlet oxygen production in photosynthesis". Journal of Experimental Botany. 56 (411):...
    97 KB (10,796 words) - 21:06, 6 May 2025
  • Thumbnail for Malignancy
    produces a singlet oxygen through the photodynamic process; where the oxygen molecule exists in an electronically excited state. The singlet oxygen is a cytotoxic...
    24 KB (2,529 words) - 19:15, 8 May 2025
  • Thumbnail for Combustion
    radicals and oxidizing radicals. Oxidizing species include singlet oxygen, hydroxyl, monatomic oxygen, and hydroperoxyl. Such intermediates are short-lived...
    50 KB (6,242 words) - 05:07, 10 April 2025
  • Thumbnail for Methylene blue
    Methylene blue is also a photosensitizer used to create singlet oxygen when exposed to both oxygen and light. It is used in this regard to make organic peroxides...
    59 KB (6,172 words) - 19:15, 5 May 2025
  • The Schenck ene reaction or the Schenk reaction is the reaction of singlet oxygen with alkenes to yield hydroperoxides. The hydroperoxides can be reduced...
    5 KB (479 words) - 09:56, 26 October 2024
  • Thumbnail for Photo-oxidation of polymers
    then transfer to O2, causing it to enter its highly reactive singlet state. Singlet oxygen is a potent oxidising agent and can go on to cause further degradation...
    43 KB (5,001 words) - 08:14, 5 May 2025