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Class of chemical compounds
Carboranes (or carbaboranes) are electron-delocalized (non-classically bonded) clusters composed of boron, carbon and hydrogen atoms. Like many of the
Carborane
Class of chemical compounds
Carborane acids H(CXB 11Y 5Z 6) (X, Y, Z = H, Alk, F, Cl, Br, CF3) are a class of superacids, some of which are estimated to be at least one million times
Carborane_acid
Chemical compound
ortho-Carborane is the organoboron compound with the formula C2B10H12. The prefix ortho is derived from the ortho- prefix used to signify that two substituents
Ortho-Carborane
Chemical compound
lower (in this case, more negative) values of H0. Of the above, only the carborane acids, whose H0 could not be directly determined due to their high melting
Fluoroantimonic_acid
Extremely strong acid
of this kind is fluoroantimonic acid. Another group of superacids, the carborane acid group, contains some of the strongest known acids. Finally, when
Superacid
Chemical compound made of two ring ligands bound to a metal
Metal–carborane complexes (metallacarboranes), a very large and diverse family in which main-group or transition metal ions are coordinated to carborane ligands
Sandwich_compound
Chemical element with atomic number 6 (C)
of four covalent bonds, other exotic bonding schemes are also known. Carboranes are highly stable dodecahedral derivatives of the [B12H12]2- unit, with
Carbon
Electron counting rules
rules useful for predicting the structures of clusters such as borane and carborane clusters. The electron counting rules were originally formulated by Kenneth
Polyhedral skeletal electron pair theory
Polyhedral_skeletal_electron_pair_theory
Chemical compound giving a proton or accepting an electron pair
concentrated weak acids are corrosive, but there are exceptions such as carboranes and boric acid. The second category of acids are Lewis acids, which form
Acid
Carbon-containing chemical compound
Halides of carbon without hydrogen (e.g., CF4 and CClF3), phosgene (COCl2), carboranes, metal carbonyls (e.g., nickel tetracarbonyl), mellitic anhydride (C12O9)
Organic_compound
Electron-deficient chemical bond where three atoms share two electrons
by the polyhedral skeletal electron pair theory, such as boranes and carboranes. These molecules derive their stability from having a completely filled
Three-center two-electron bond
Three-center_two-electron_bond
metalation of neutral carboranes. Illustrative are the six-and seven-vertex cages prepared from closo-C2B3H5. Reaction of this carborane with iron carbonyl
Metallaborane
Aqueous cation H3O+
[citation needed] The hydronium ion also forms stable compounds with the carborane superacid H(CB11H(CH3)5Br6). X-ray crystallography shows a C3v symmetry
Hydronium
Chemical compound
strongest Brønsted acids in general, with an acidity exceeded only by the carborane acids. Notably, triflidic acid is estimated to have an acidity 104 times
Triflidic_acid
Solid-rocket propellant
primary oxidizer Metal-oxide catalysts as thermite oxidizers Catalysts Carborane Copper chromite Iron oxides Ferrocene and derivatives (catocene, butacene
Ammonium perchlorate composite propellant
Ammonium_perchlorate_composite_propellant
Forms during electrophilic substitution on benzene ring
Salts of benzenium ion can be isolated when benzene is protonated by the carborane superacid H(CB11H(CH3)5Br6). The benzenium salt is crystalline with thermal
Arenium_ion
Chemical compound
(200 °C) to get it moving. On the other hand, a nanocar which utilized p-carborane wheels moves as if sliding on ice, rather than rolling. Such observations
Nanocar
Chemical compound
isomers exist, but most common is 1,2-dicarbollide derived from ortho-carborane. These dianions function as ligands, related to the cyclopentadienyl anion
Dicarbollide
Chemical compound composed of boron and hydrogen atoms only
patterns seen in hydrocarbons. Hybrids of boranes and hydrocarbons, the carboranes, are also well developed. The development of the borane hydride clusters
Boron_hydride_clusters
Chemical substances containing carbon
tetraiodide (CI4), and a large number of other carbon-halogen compounds. A carborane is a cluster composed of boron and carbon atoms such as H2C2B10H10. There
Carbon_compounds
Alternate scientific theory of scent perception
pointed out that for o-carborane, which has a very strong B−H stretch at 2575 cm−1, the "onion-like odor of crude commercial o-carborane is replaced by a pleasant
Vibration_theory_of_olfaction
Class of chemical compounds
patterns seen in hydrocarbons. Hybrids of boranes and hydrocarbons, the carboranes, are also a well developed class of compounds. The development of the
Boranes
Class of compounds of boron
and nanotechnology.[citation needed] Carboranes Azaboranes Metallaboranes Metallacarboranes Dicarbollide Carborane superacid Koeritz, Mason T.; Banovetz
Heteroborane
treatment of cancer using substituted Carborane-Appended Water-Soluble single-wall carbon nanotubes. Substituted C2B10 carborane cages were successfully attached
Carbon_nanotubes_in_medicine
American chemist (1919–2011)
determination, for new polyborane species and for substituted boranes and carboranes, would be greatly accelerated if the [boron-11] nuclear magnetic resonance
William_Lipscomb
Measure of acidity for very strong acids
Fluorosulfuric acid −15.07 Hydrofluoric acid −15.1 Fluoroboric acid −16.6 Carborane acid ≤−18 Magic acid (1:1 FSO3H-SbF5) −23.0 Fluoroantimonic acid (1:1
Hammett_acidity_function
Measure of the tendency of an acid to dissociate
organic chemistry Fluoroantimonic acid H[SbF6] Magic acid H[FSO3SbF5] Carborane superacid H[CHB11Cl11] Fluorosulfuric acid H[FSO3] ( p K a = − 6.4 {\displaystyle
Acid_strength
Anion which interacts weakly with cations
Another large class of non-coordinating anions are derived from carborane anion CB 11H− 12. Using this anion, the first example of a three-coordinate
Non-coordinating_anion
Chemical compound
known acids (only weaker than the helium hydride ion and potentially some carborane acids), hexafluoroantimonate is one of the weakest known bases. Higher
Fluoroantimonate
Any of the five regular polyhedra
carbide, include discrete B12 icosahedra within their crystal structures. Carborane acids also have molecular structures approximating regular icosahedra
Platonic_solid
ortho-carborane with the formula B10C2H10. They are also called 1,2-dehydro-o-carboranes. The hydrogen atoms on the C2 unit in the parent o-carborane are
Carboryne
Si(C 6H 2Me 3)+ 3 and Si(C 6Me 5)+ 3 have been crystallized with the carborane [HCB11Me5Br6]− and decaborate [B12Cl12]2-, respectively. Weakly coordinating
Silylium_ion
Solute that (almost) completely ionizes or dissociates in solution
Periodic acid, HIO4 Fluoroantimonic acid, HSbF6 Magic acid, FSO3HSbF5 Carborane superacid, H(CHB11Cl11) Fluorosulfuric acid, FSO3H Triflic acid, CF3SO3H
Strong_electrolyte
Chemical compound
used cation. Sodium dicarbollylcobaltate could be synthesized from o-carborane. Lewis bases like butylamine and sodium hydroxide could attack the boron
Sodium dicarbollylcobaltate(III)
Sodium_dicarbollylcobaltate(III)
American biochemist (1938–2023)
ISBN 978-0-8412-3817-6. Voet, D. and Lipscomb, W. N., "Molecular Structure of Carboranes. A 1,2-Dicarbaclovododecaborane Derivative, B10H10(CCH2Br)2," Inorg. Chem
Donald_Voet
Chemical compound
200460005. ISSN 1433-7851. PMID 15468064. Reed, Christopher A. (2005). "Carborane Acids. New "strong yet gentle" acids for organic and inorganic chemistry"
Fluoroboric_acid
Chemical compound
"arachno" clusters, in turn react with acetylene to give the "closo" ortho-carborane: B10H12 · 2 L + C2H2 → C2B10H12 + 2 L + H2 Decaborane(14) is a weak Brønsted
Decaborane
Device containing a pyrotechnic composition
with the required burning time. More exotic materials can be used, e.g. carboranes. For special applications, pyrophoric igniters can be used which burst
Pyrotechnic_initiator
Type of a chemical reaction
revealed with the use of AgCB11H12, which contains a weakly coordinating carborane anion. With IrCl(CO)(PPh3)2 (Vaska's Complex), the product is an adduct
Salt_metathesis_reaction
British chemist
Strathclyde on Synthesis and Bonding Studies on Icosahedral Borane and Carborane Anions for Neutron Capture Therapy " and successfully completed it
Francis_S._Mair
Chemical compound
Heterocyclium Dicationic closo- Icosahedral Perfluoroborane, Borane, and Carborane Salts via Aqueous, Open-Air Benchtop Synthesis". Organic Letters. 12 (12):
Dodecaborate
Any chemical compound having at least one boron atom
cations, to carboranes, carbon-boron cluster chemistry compounds that can be halogenated to form reactive structures including carborane acid, a superacid
Boron_compounds
Chemical compound
applied the same methods to related problems, including the structure of carboranes, on which he directed the research of future 1981 Nobel Prize winner Roald
Diborane
Solid with twenty equal triangular faces
skeleton is shaped like a regular icosahedron. In chemistry, the closo-carboranes are compounds with a shape resembling the regular icosahedron. The crystal
Regular_icosahedron
General term in chemistry
Frederick; Zheng, Zhiping (1997). "Recognition of Electron-Donating Guests by Carborane-Supported Multidentate Macrocyclic Lewis Acid Hosts: Mercuracarborand
Electron-rich
Nobel laureate theoretical chemist
Polyhedral Molecules. III. Population Analyses and Reactivities for the Carboranes". The Journal of Chemical Physics. 36 (12): 3489. Bibcode:1962JChPh..36
Roald_Hoffmann
Topics referred to by the same term
The descriptor nido- is typically applied boranes, derivatives such as carboranes, and deltahedral metal cluster compounds such as stannides, plumbides
Nido
Organic molecule whose carbon structure is a Platonic solid
compounds such as the dodecaborate ion and some of the carbon-containing carboranes. Increasing the number of atoms that comprise the carbon skeleton leads
Platonic_hydrocarbon
Class of ions
can be isolated as a stable compound when benzene is protonated by the carborane superacid, H(CB11H(CH3)5Br6). The benzenium salt is crystalline with thermal
Carbenium_ion
Borane cluster
R and R' stand typically for H or organic substituent) and borazines. Carborane Lenka Schneider; Ulli Englert; Peter Paetzold (1994). "Die Kristallstruktur
Azaborane
Study of compounds containing a boron-carbon bond
cluster compounds with carbon vertices are carboranes; the best known is orthocarborane, C2B10H12. Carboranes have few commercial applications. Anionic
Organoboron_chemistry
Bonding of atoms of the same element into chains or rings
Various other similar motifs are also well studied, such as boranes, carboranes and metal dicarbollides. Nitrogen, unlike its neighbor carbon, is much
Catenation
Branch of chemistry dealing with radioactivity, transmutation and other nuclear processes
strontium with poly ethylene oxide (poly ethylene glycol) and a cobalt carborane anion (known as chlorinated cobalt dicarbollide). The actinides are extracted
Nuclear_chemistry
Chemical separation of spent nuclear fuel
interaction of caesium and strontium with polyethylene glycol and a cobalt carborane anion (known as chlorinated cobalt dicarbollide). The actinides are extracted
Nuclear_reprocessing
Term used in organic chemistry
S = 11/2 and a bond-length alternation of 0.2 pm. Fullerene chemistry Carborane Boranes Hirsch, Andreas; Chen, Zhongfang; Jiao, Haijun (2000), "Spherical
Spherical_aromaticity
diboride – MgB2 Metaboric acid – H3B3O6 Octadecaborane – B18H22 Ortho-carborane – C2B10H12 Pentaborane – B5H9 Pentaborane(11) – B5H11 Sodium metaborate
List_of_inorganic_compounds
that have been reported for fluoroalkyl group HDF are triethylsilane / carborane acid, and NiCl2(PCy3)2 / (LiAl(O-t-Bu)3H) Kuehnel, M. F., Lentz, D. and
Hydrodefluorination
Atom(s) that detach from the substrate during a chemical reaction
[CHB11Cl11]− under reduced pressure methylates the very poorly nucleophilic carborane anion, with concomitant expulsion of the CH3Cl leaving group. Likewise
Leaving_group
Man-made molecular machines
helicene-derived engine with an oligo (phenylene ethynylene) chassis and four carborane wheels and is expected to be able to move on a solid surface with scanning
Synthetic_molecular_motor
Primary or secondary battery
alkoxides, amido based complexes (e.g. based on hexamethyldisilazane), carborane salts, fluorinated alkoxyborates, a Mg(BH4)(NH2) solid state electrolyte
Magnesium_battery
German inorganic chemist and professor (born 1957)
Menyhárt B.; Hey-Hawkins, Evamarie (2019). "New Keys for Old Locks: Carborane-Containing Drugs as Platforms for Mechanism-Based Therapies". Chemical
Evamarie_Hey-Hawkins
Indian nanotechnology physicist (born 1956)
Pandey R, et al., Ab initio quantum chemical study of electron transfer in carboranes, Chemical Physics Letters 406 (4–6): 483–488 2 May 2005 Fellow, American
Shashi_P._Karna
American chemist
Phosphorescent Organic Light Emitting Diode Materials Featuring Multidentate Carborane-Based Ligands". www.nsf.gov. Retrieved 2022-04-02. "Winners of 2012 IUPAC
Alexander_M._Spokoyny
American chemist (1935–1995)
greatly expanded the range of known carboranes to include polyhedral B9C2H11, B8C2H10, B7C2H9, and B6C2H8 carboranes, the B7C2H13 system, and their derivatives
Frederick_N._Tebbe
Indian theoretical chemist
structure of three-dimensional aromatic compounds, polyhedral boranes, carboranes, silaboranes, electron counting rules for polycondensation, and structure
E._D._Jemmis
different species of heteroboranes, metallaboranes, metallaheteroboranes and carboranes. A major theme is the exploration of the spectrum of intimacy between
John_David_Kennedy
Nonsurgical treatment for locally invasive malignant tumors
Cai J, Nakamura H, Fujiwara M, Yamamoto Y (1999). "The synthesis of a carborane gadolinium–DTPA complex for boron neutron capture therapy". Journal of
Neutron capture therapy of cancer
Neutron_capture_therapy_of_cancer
Chinese chemist and academician
out extensive work on borohydride reactions and chemical research on carboranes. During the ten-year Cultural Revolution, he was forced to perform hard
Dai_Lixin
Nuclear reactor vessel lining
Hoon-Kyun (2011-08-01). "First boronization in KSTAR: Experiences on carborane". Journal of Nuclear Materials. Proceedings of the 19th International
Plasma-facing_material
American chemistry award
structures, bonding, and reactivity patterns of polyhedral borane anions, carboranes, and metallocarboranes. His research has made possible major new advances
Willard_Gibbs_Award
degradation of the latter gives arachno-4-CB8H14. Russell N. Grimes (2016). Carboranes, 3rd Edition. Elsevier. ISBN 9780128019054. Brellochs, Bernd; Bačkovský
Brellochs_reaction
Ion
covalent bond has been of some theoretical interest and was achieved using carborane acid. As illustrated by the structures of most metal oxides, oxygen compounds
Oxatriquinane
of boranes; For ... works on the bonding and structure of boranes and carborane-metal complexes; For ... works on enzymatic reaction mechanisms” “for
List of nominees for the Nobel Prize in Chemistry
List_of_nominees_for_the_Nobel_Prize_in_Chemistry
Chemical compound
(25): 4925–4930. doi:10.1021/jo00375a031. Onak, Thomas (1 January 1966). "Carboranes and Organo-Substituted Boron Hydrides". In Stone, F. G. A.; West, Robert
1,1-Dimethyldiborane
Hoon-Kyun (2011-08-01). "First boronization in KSTAR: Experiences on carborane". Journal of Nuclear Materials. Proceedings of the 19th International
Boronization
CO and isocyanide mediated by a C,C′-bis(silylenyl)-substituted ortho-carborane". Chemical Communications. 56 (5): 747–750. doi:10.1039/C9CC08680C. ISSN 1364-548X
Ketenyl_anion
Enzyme found in most living cells
and biochemical evaluation of thymidine analogues substituted with nido carborane at the N-3 position". Applied Radiation and Isotopes. 61 (5): 1125–30
Thymidine_kinase
British nuclear engineer
Strathclyde, where her thesis title was "Synthesis and reactions of boranes and carboranes for use in boron neutron capture therapy". Before her retirement in 2024
Fiona_Rayment
American chemist and professor
of quantum molecular reactions. His interest areas include carbenes, carboranes, and heterocycles. Over the course of almost forty years, he and his research
Maitland_Jones_Jr.
Compounds containing hydrogen
boranes (boron hydrides) and aluminium complexes, as well as in clustered carboranes. Oxidation of hydrogen removes its electron and gives H+, which contains
Hydrogen_compounds
Chemical compound
closo boron hydride resists degradation more so than the isoelectronic carboranes. Neutron capture therapy of cancer Greenwood, Norman N.; Earnshaw, Alan
Caesium_dodecaborate
Chemical compound
(25): 4925–4930. doi:10.1021/jo00375a031. Onak, Thomas (1 January 1966). "Carboranes and Organo-Substituted Boron Hydrides". In Stone, F. G. A.; West, Robert
Methyldiborane
Indian-American cancer research scientist (born 1948)
Institute in Northern Ireland, and then moved to the United States to study carboranes and metallacarboranes. After postdoctoral work with Russell Grimes at
Narayan_Sadashiv_Hosmane
structural significance of the number of skeletal bonding electron-pairs in carboranes, the higher boranes and borane anions, and various transition-metal carbonyl
Jemmis_mno_rules
Chemical compound
Bibcode:1961JChPh..34..783L. doi:10.1063/1.1731675. Onak, Thomas (1 January 1966). "Carboranes and Organo-Substituted Boron Hydrides". In Stone, F. G. A.; West, Robert
Trimethyldiborane
Chemical compound
Sons. pp. 237–238. ISBN 978-0471045427. Onak, Thomas (1 January 1966). "Carboranes and Organo-Substituted Boron Hydrides". In Stone, F. G. A.; West, Robert
Tetramethyldiborane
CARBORANE
CARBORANE
CARBORANE
CARBORANE
Girl/Female
Indian, Punjabi, Sikh
Truth; Righteous
Boy/Male
Hindu, Indian, Sanskrit, Traditional
One who is Happy in Following his Religion; The Centre of Dharma; Another Name for Visnu
Boy/Male
Muslim
Butterfly, Kite
Biblical
howling; doing evil
Boy/Male
Hindu
Purifying, Fire, Brilliant, Pure
Girl/Female
Tamil
Netravati | நேதà¯à®°à®µà®¤à¯€
Beautiful eyed
Boy/Male
Hindu, Indian, Sanskrit
Cloud; Rainy Clouds
Boy/Male
Tamil
Girl/Female
Greek
From the east.
Female
English
Celtic legend name of a tragic heroine who committed suicide after the murder of her lover. She is sometimes referred to as Deirdre of the Sorrows. The name is of uncertain derivation. Some sources give the DEIRDRE means "young girl."
CARBORANE
CARBORANE
CARBORANE
CARBORANE
CARBORANE