Dioxidanylium

Last updated
Dioxidanylium [1]
HO2+.svg
Names
IUPAC name
oxooxidanium
Other names
Hydroperoxy cation; Hydridodioxygen(1+); Dioxidenium; dioxidanylium
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
508
PubChem CID
  • InChI=1S/O2/c1-2/p+1
    Key: MYMOFIZGZYHOMD-UHFFFAOYSA-O
  • [OH+]=O
Properties
HO2+
Molar mass 33.005 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dioxidanylium, which is protonated molecular oxygen, or just protonated oxygen, is an ion with formula HO+
2
. It is formed when hydrogen containing substances combust, and exists in the ionosphere, and in plasmas that contain oxygen and hydrogen. [2] Oxidation by O2 in superacids could be by way of the production of protonated molecular oxygen.

Contents

It is the conjugate acid of dioxygen. The proton affinity of dioxygen (O2) is 4.4 eV. [3]

Significance

Protonated molecular oxygen is of interest in trying to detect dioxygen in space. Because Earth's atmosphere is full of O2, its spectrum from a space object is impossible to observe from the ground. However HO+
2
should be much more detectable. [4]

Formation

Reaction of dioxygenyl O+
2
with hydrogen: [5]

O+•
2
+ H2HO+
2
+ H

The reaction of the trihydrogen cation with dioxygen is approximately thermoneutral: [3]

O2 + H+
3
HO+
2
+ H2

When atomic hydrogen, created in an electric discharge is rapidly cooled with oxygen and condensed in solid neon, several reactive ions and molecules are produced. These include HO2 (hydroperoxyl), HOHOH, H2O(HO), HOHO as well as HO+
2
. [6] This reaction also forms hydrogen peroxide (H2O2) and hydrogen tetroxide (H2O4). [7]

Properties

In the infrared spectrum HO+
2
the v1 band due to vibrating O–H has a band head at 3016.73 cm−1. [8]

Reactions

A helium complex (He–O2H+) also is known. [8]

HO+
2
appears to react rapidly with hydrogen: [9]

HO+
2
+ H2 → O2 + H+
3

HO+
2
also reacts with dinitrogen and water: [9]

HO+
2
+ H2O → O2 + H3O+

The protonated molecular oxygen dimer HO+
4
has a lower energy than that of protonated molecular oxygen. [3]

Related Research Articles

<span class="mw-page-title-main">Hydrogen</span> Chemical element with atomic number 1 (H)

Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H2, sometimes called dihydrogen, but more commonly called hydrogen gas, molecular hydrogen or simply hydrogen. It is colorless, odorless, non-toxic, and highly combustible. Constituting about 75% of all normal matter, hydrogen is the most abundant chemical element in the universe. Stars, including the Sun, mainly consist of hydrogen in a plasma state, while on Earth, hydrogen is found in water, organic compounds, as dihydrogen, and in other molecular forms. The most common isotope of hydrogen consists of one proton, one electron, and no neutrons.

<span class="mw-page-title-main">Oxide</span> Chemical compound where oxygen atoms are combined with atoms of other elements

An oxide is a chemical compound containing at least one oxygen atom and one other element in its chemical formula. "Oxide" itself is the dianion of oxygen, an O2– ion with oxygen in the oxidation state of −2. Most of the Earth's crust consists of oxides. Even materials considered pure elements often develop an oxide coating. For example, aluminium foil develops a thin skin of Al2O3 that protects the foil from further oxidation.

In chemistry, hydronium is the cation [H3O]+, also written as H3O+, the type of oxonium ion produced by protonation of water. It is often viewed as the positive ion present when an Arrhenius acid is dissolved in water, as Arrhenius acid molecules in solution give up a proton to the surrounding water molecules. In fact, acids must be surrounded by more than a single water molecule in order to ionize, yielding aqueous H+ and conjugate base.

In chemistry, a superoxide is a compound that contains the superoxide ion, which has the chemical formula O−2. The systematic name of the anion is dioxide(1−). The reactive oxygen ion superoxide is particularly important as the product of the one-electron reduction of dioxygen O2, which occurs widely in nature. Molecular oxygen (dioxygen) is a diradical containing two unpaired electrons, and superoxide results from the addition of an electron which fills one of the two degenerate molecular orbitals, leaving a charged ionic species with a single unpaired electron and a net negative charge of −1. Both dioxygen and the superoxide anion are free radicals that exhibit paramagnetism. Superoxide was historically also known as "hyperoxide".

In chemistry, a reducing agent is a chemical species that "donates" an electron to an electron recipient.

Xenon tetroxide is a chemical compound of xenon and oxygen with molecular formula XeO4, remarkable for being a relatively stable compound of a noble gas. It is a yellow crystalline solid that is stable below −35.9 °C; above that temperature it is very prone to exploding and decomposing into elemental xenon and oxygen (O2).

<span class="mw-page-title-main">Hydroxyl radical</span> Neutral form of hydroxide, OH•

The hydroxyl radical, HO, is the neutral form of the hydroxide ion (HO). Hydroxyl radicals are highly reactive and consequently short-lived; however, they form an important part of radical chemistry. Most notably hydroxyl radicals are produced from the decomposition of hydroperoxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. It is also an important radical formed in radiation chemistry, since it leads to the formation of hydrogen peroxide and oxygen, which can enhance corrosion and stress corrosion cracking in coolant systems subjected to radioactive environments. Hydroxyl radicals are also produced during UV-light dissociation of H2O2 (suggested in 1879) and likely in Fenton chemistry, where trace amounts of reduced transition metals catalyze peroxide-mediated oxidations of organic compounds.

<span class="mw-page-title-main">Oxygen fluoride</span> Any binary compound of oxygen and fluorine

Oxygen fluorides are compounds of elements oxygen and fluorine with the general formula OnF2, where n = 1 to 6. Many different oxygen fluorides are known:

<span class="mw-page-title-main">Hydroperoxyl</span> Chemical compound

The hydroperoxyl radical, also known as the hydrogen superoxide, is the protonated form of superoxide with the chemical formula HO2, also written HOO. This species plays an important role in the atmosphere and as a reactive oxygen species in cell biology.

<span class="mw-page-title-main">Carbonium ion</span> Any cation that has a pentavalent carbon atom

In chemistry, a carbonium ion is a cation that has a pentacoordinated carbon atom. They are a type of carbocation. In older literature, the name "carbonium ion" was used for what is today called carbenium. Carbonium ions charge is delocalized in three-center, two-electron bonds. The more stable members are often bi- or polycyclic.

<span class="mw-page-title-main">Methanium</span> Ion of carbon with five hydrogens

In chemistry, methanium is a complex positive ion with formula [CH5]+ or [CH3(H2)]+, bearing a +1 electric charge. It is a superacid and one of the onium ions, indeed the simplest carbonium ion.

The Haber–Weiss reaction generates •OH (hydroxyl radicals) from H2O2 (hydrogen peroxide) and superoxide (•O2) catalyzed by iron ions. It was first proposed by Fritz Haber and his student Joseph Joshua Weiss in 1932.

Oxygen evolution is the chemical process of generating elemental diatomic oxygen (O2) by a chemical reaction, usually from water, the most abundant oxide compound in the universe. Oxygen evolution on Earth is effected by biotic oxygenic photosynthesis, photodissociation, hydroelectrolysis, and thermal decomposition of various oxides and oxyacids. When relatively pure oxygen is required industrially, it is isolated by distilling liquefied air.

The helium hydride ion, hydridohelium(1+) ion, or helonium is a cation (positively charged ion) with chemical formula HeH+. It consists of a helium atom bonded to a hydrogen atom, with one electron removed. It can also be viewed as protonated helium. It is the lightest heteronuclear ion, and is believed to be the first compound formed in the Universe after the Big Bang.

<span class="mw-page-title-main">Sodium metaborate</span> Chemical compound

Sodium metaborate is a chemical compound of sodium, boron, and oxygen with formula NaBO2. However, the metaborate ion is trimeric in the anhydrous solid, therefore a more correct formula is Na3B3O6 or (Na+)3[B3O6]3−. The formula can be written also as Na2O·B2O3 to highlight the relation to the main oxides of sodium and boron. The name is also applied to several hydrates whose formulas can be written NaBO2·nH2O for various values of n.

<span class="mw-page-title-main">Protonated hydrogen cyanide</span> Chemical compound

HCNH+, also known as protonated hydrogen cyanide, is a molecular ion of astrophysical interest. It also exists in the condensed state when formed by superacids.

<span class="mw-page-title-main">Hydrogen polyoxide</span> Chemical compound

Hydrogen polyoxides are chemical compounds that consist only of hydrogen and oxygen atoms, are bonded exclusively by single bonds, and are acyclic. They can therefore be classed as hydrogen chalcogenides.

Neon compounds are chemical compounds containing the element neon (Ne) with other molecules or elements from the periodic table. Compounds of the noble gas neon were believed not to exist, but there are now known to be molecular ions containing neon, as well as temporary excited neon-containing molecules called excimers. Several neutral neon molecules have also been predicted to be stable, but are yet to be discovered in nature. Neon has been shown to crystallize with other substances and form clathrates or Van der Waals solids.

Argon compounds, the chemical compounds that contain the element argon, are rarely encountered due to the inertness of the argon atom. However, compounds of argon have been detected in inert gas matrix isolation, cold gases, and plasmas, and molecular ions containing argon have been made and also detected in space. One solid interstitial compound of argon, Ar1C60 is stable at room temperature. Ar1C60 was discovered by the CSIRO.

<span class="mw-page-title-main">Argonium</span> Chemical compound

Argonium (also called the argon hydride cation, the hydridoargon(1+) ion, or protonated argon; chemical formula ArH+) is a cation combining a proton and an argon atom. It can be made in an electric discharge, and was the first noble gas molecular ion to be found in interstellar space.

References

  1. "HO2+". webbook.nist.gov.
  2. Robbe, J.M.; Monnerville, M.; Chambaud, G.; Rosmus, P.; Knowles, P.J. (January 2000). "Theoretical spectroscopic data of the HO+
    2
    ion". Chemical Physics. 252 (1–2): 9–16. Bibcode:2000CP....252....9R. doi:10.1016/S0301-0104(99)00350-X.
  3. 1 2 3 Xavier, George D.; Bernal-Uruchurtu, Margarita I.; Hernández-Lamoneda, Ramón (28 August 2014). "Communication: study of O4H+: A tracer molecule in the interstellar medium?". The Journal of Chemical Physics. 141 (8): 081101. doi: 10.1063/1.4894068 . PMID   25172995.
  4. Widicus Weaver, Susanna L.; Woon, David E.; Ruscic, Branko; McCall, Benjamin J. (20 May 2009). "Is HO+
    2
    a Detectable Interstellar Molecule?"
    . The Astrophysical Journal. 697 (1): 601–609. Bibcode:2009ApJ...697..601W. doi: 10.1088/0004-637X/697/1/601 .
  5. Ajello, J. M. (1974). "Formation of HO+
    2
    by reaction of metastable O+
    2
    ions with H2". The Journal of Chemical Physics. 60 (4): 1211–1213. Bibcode:1974JChPh..60.1211A. doi:10.1063/1.1681184.
  6. Jacox, Marilyn E.; Thompson, Warren E. (24 December 2012). "Infrared Spectra of Products of the Reaction of H Atoms with O2 Trapped in Solid Neon: HO2, HO+
    2
    , HOHOH , and H2O(HO)". The Journal of Physical Chemistry A. 117 (39): 9380–9390. doi:10.1021/jp310849s. PMID   23215001.
  7. Levanov, A. V.; Isaikina, O. Ya.; Antipenko, E. E.; Lunin, V. V. (5 August 2014). "Mechanism of the formation of hydrogen tetroxide and peroxide via low-temperature interaction between hydrogen atoms and molecular oxygen". Russian Journal of Physical Chemistry A. 88 (9): 1488–1492. Bibcode:2014RJPCA..88.1488L. doi:10.1134/S0036024414090222. S2CID   97672680.
  8. 1 2 Kohguchi, Hiroshi; Jusko, Pavol; Yamada, Koichi M. T.; Schlemmer, Stephan; Asvany, Oskar (14 April 2018). "High-resolution infrared spectroscopy of O2H+ in a cryogenic ion trap". The Journal of Chemical Physics. 148 (14): 144303. Bibcode:2018JChPh.148n4303K. doi:10.1063/1.5023633. PMID   29655341.
  9. 1 2 Kluge, Lars; Gärtner, Sabrina; Brünken, Sandra; Asvany, Oskar; Gerlich, Dieter; Schlemmer, Stephan (13 November 2012). "Transfer of a proton between H2 and O2". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 370 (1978): 5041–5054. Bibcode:2012RSPTA.370.5041K. doi: 10.1098/rsta.2012.0170 . PMID   23028152.