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Any onium ion containing a halogen atom carrying a positive charge
A halonium ion is any onium ion containing a halogen atom carrying a positive charge. This cation has the general structure R−+X−R′ where X is any halogen
Halonium_ion
Reaction which adds a halogen molecule
"Stable carbonium ions. XLVIII. Halonium ion formation via neighboring halogen participation. Tetramethylethylene halonium ions". Journal of the American
Halogen_addition_reaction
Class of positively-charged molecules
ions such as iminium and nitrilium. A simple onium ion has a charge of +1. A larger ion that has two onium ion subgroups is called a double onium ion
Onium_ion
Ion
open-chain halonium ions (such as [Me2Cl]+[Al(OTeF5)4]–) as well as cyclic haliranium ions, fluorine was not believed to form fluoronium ions of type R–+F–R
Fluoronium
Rule in organic chemistry
derivatives. Cyclohexene derivatives, such as imines, epoxides, and halonium ions, react with nucleophiles in a stereoselective fashion, affording trans-diaxial
Fürst–Plattner_rule
Rearrangement reaction in organic chemistry
electrophilic addition to the alkene group with electrophiles such as halonium ions, Brønsted acids and Lewis acids. In type 3 the substrates are epoxides
Semipinacol_rearrangement
Cyclic amide
derivatives from the nucleophilic abstraction reaction. An iminium ion reacts with a halonium ion formed in situ by reaction of an alkene with iodine. Lactams
Lactam
Chemical compound
Olah's work with this reaction established experimental evidence for halonium ions, which had been theoretically predicted to explain the regioselectivity
Fluoroantimonate
Hydrocarbon compound containing one or more C=C bonds
reactions do not require catalysts. The reaction occurs in two steps, with a halonium ion as an intermediate. Bromine test is used to test the saturation of hydrocarbons
Alkene
Chemical reaction in which halogen substituents are added to aromatic molecules
formation of the arenium ion results in the temporary loss of aromaticity, which has a higher activation energy compared to halonium ion formation in alkenes
Electrophilic_halogenation
Chemical reaction
The reaction mechanism involves the formation of a positively charged halonium ion in a molecule that also contains a carboxylic acid (or other functional
Iodolactonization
Chemical reaction which adds one or more halogen elements to a compound
2 H2O The addition of halogens to alkenes proceeds via intermediate halonium ions. In special cases, such intermediates have been isolated. Bromination
Halogenation
Atom(s) that detach from the substrate during a chemical reaction
reductive elimination. Prominent hyper leaving groups include various halonium ions, such as diaryl iodonium salts; and other λ3-iodanes. Hyper leaving
Leaving_group
Australian icebreaker and research ship
zero visibility in the engine room and was suppressed by the release of halonium ion fire suppression system. Re-entry to the compartment resulted in successful
Aurora_Australis_(icebreaker)
Organic compound
dinitrogen. Stable carbenes also have a ylidic resonance contributor, e.g.: Halonium ylides can be prepared from allyl halides and metal carbenoids. After a
Ylide
Organic derivative of iodine
(2017-07-01). "Halogen bonding in hypervalent iodine and bromine derivatives: halonium salts". IUCrJ. 4 (4): 411–419. doi:10.1107/S2052252517004262. ISSN 2052-2525
Hypervalent organoiodine compounds
Hypervalent_organoiodine_compounds
Chemical compound
Leblanc, Danielle; Morton, Thomas Hellman (1 November 2002). "Gas-Phase Halonium Metathesis and Its Competitors. Skeletal Rearrangements of Cationic Adducts
Trifluoromethylation
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HALONIUM ION
HALONIUM ION
Boy/Male
Hebrew
Gift from God.
Girl/Female
Ukrainian
God's gift.
Boy/Male
Greek
Son of Apollo.
Boy/Male
Tamil
The ionians, Greeks
Male
Greek
(Ἰωνᾶς) Greek form of Hebrew Yonah, IONAS means "dove." In the bible, this is the name of the father of Peter.
Surname or Lastname
English (East Midlands)
English (East Midlands) : of uncertain origin, ostensibly a patronymic, though Reaney believes it to be a nickname from Anglo-Norman French muisson ‘sparrow’.French : variant of Musset (see Mussett 1).French : nickname from Old French moisson, mousson, ‘sparrow’.French : habitational name from Mousson in Meuse-et-Moselle, named with the Latin personal name Montius + the suffix -onem, or alternatively, with Latin mons ‘mountain’ + the suffix -ionem.
Male
Romanian
Romanian form of Hebrew Yownathan, IONATAN means "God has given."Â
Male
Romanian
Basque and Romanian form of Greek Ioannes, ION means "God is gracious." In use by the Romani.
Surname or Lastname
Romanian
Romanian : from the personal name Ion (see John).English : probably a variant of John.
Girl/Female
Greek
Amethyst.
Male
Romanian
Pet form of Romanian Ioan, IONEL means "God is gracious."
Male
Irish
Irish form of Hebrew Yownathan, IONATÃN means "God has given."Â
Surname or Lastname
English, German, French, Jewish (Ashkenazic), Lithuanian, Czech and Slovak (Jonáš), and Hungarian (Jónás)
English, German, French, Jewish (Ashkenazic), Lithuanian, Czech and Slovak (Jonáš), and Hungarian (Jónás) : from a medieval personal name, which comes from the Hebrew male personal name Yona, meaning ‘dove’. In the book of the Bible which bears his name, Jonah was appointed by God to preach repentance to the city of Nineveh, but tried to flee instead to Tarshish. On the voyage to Tarshish, a great storm blew up, and Jonah was thrown overboard by his shipmates to appease God’s wrath, swallowed by a great fish, and delivered by it on the shores of Nineveh. This story exercised a powerful hold on the popular imagination in medieval Europe, and the personal name was a relatively common choice. The Hebrew name and its reflexes in other languages (for example Yiddish Yoyne) have been popular Jewish personal names for generations. There are also saints, martyrs, and bishops called Jonas venerated in the Orthodox Church. Ionas is found as a Greek family name.Jewish (Ashkenazic) : respelling of Yonis, with Yiddish possessive -s.
Male
Romanian
Pet form of Romanian Ioan, IONUT means "God is gracious."
Female
Romanian
Variant spelling of Romanian Ioanela, IONELA means "God is gracious."
Boy/Male
Welsh
Legendary king of France.
Female
Scottish
 Scottish name derived from the name of an island in the Hebrides, ultimately from Old Norse ey, IONA means "island." Compare with another form of Iona.
Girl/Female
Irish
St. Colmcille founded his monastery on Iona, the island between Ireland and Scotland in 563 AD and thus the name is associated with “blessed.â€
Surname or Lastname
English
English : habitational name from places in Cumbria, Lincolnshire, and Northamptonshire. The first gets its name from Old English HaferingtÅ«n ‘settlement (Old English tÅ«n) associated with someone called Hæfer’, a byname meaning ‘he-goat’. The second probably meant ‘settlement (Old English tÅ«n) of someone called Hæring’. Alternatively, the first element may have been Old English hæring ‘stony place’ or hÄring ‘gray wood’. The last, recorded in Domesday Book as Arintone and in 1184 as Hederingeton, is most probably named with an unattested Old English personal name, Heathuhere.Irish (County Kerry and the West) : adopted as an Anglicized form of Gaelic Ó hArrachtáin ‘descendant of Arrachtán’, a personal name from a diminutive of arrachtach ‘mighty’, ‘powerful’.Irish (County Kerry) : adopted as an Anglicized form of Gaelic Ó hIongardail, later Ó hUrdáil, ‘descendant of Iongardal’.Irish : reduced Anglicized form of Gaelic Ó hOireachtaigh ‘descendant of Oireachtach’, a byname meaning ‘member of the assembly’ or ‘frequenting assemblies’.
Girl/Female
Greek
Amethyst.
HALONIUM ION
HALONIUM ION
HALONIUM ION
HALONIUM ION
HALONIUM ION
HALONIUM ION
HALONIUM ION
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