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- Carbo-mer abstract "In organic chemistry, a carbomer is an expanded molecule obtained by insertion of a C2 unit in a given molecule. Carbomers differ from their templates in size but not in symmetry when each C–C single bond is replaced by at least one alkyne bond, and when a double bond is replaced by an allene bond. The size of the carbomer will continue to increase when more alkyne bonds are introduced and for this reason carbomers are also called carbon-molecules, where "n" is the number of acetylene or allene groups in an n-expansion unit. This concept, devised by Rémi Chauvin in 1995, is aimed at introducing new chemical properties for existing chemical motifs.carbo-benzeneTwo representations exist for carbo-benzene (written as an [18]annulene derivative: 1,2,4,5,7,8,I0,11,13,14,16,17-dodecadehydro[18]annulene), one has the aromatic core of benzene expanded, and one has the hydrogen substituents expanded. The substituted benzene derivative hexaethynylbenzene is a known compound, and the core-expanded molecule also exists, although with the hydrogen atoms replaced by phenyl groups. The final step in its organic synthesis is reaction of the triol with stannous chloride and hydrochloric acid in diethyl ether. carbo-benzene synthesisThe proton NMR spectrum for this compound shows that the phenyl protons are shifted downfield compared to a proton position in benzene itself (chemical shift position for the ortho proton is 9.49 ppm), suggesting the presence of a diamagnetic ring current and thus aromaticity. The total carbomer of benzene with core and periphery expanded (C30H6) only exists in silico.Total carbomer of benzeneCalculations predict a planar D6h structure with bond lengths similar to the other two carbobenzenes. Its non-planar isomer is called "hexaethynyl-carbo-[6]trannulene" - a pun on the all-cis annulenes - and resembles a cyclohexane ring. This hypothetical molecule is predicted to be more energetic by 65 kcal/mol.".
- Carbo-mer thumbnail Carbo-benzene.png?width=300.
- Carbo-mer wikiPageID "1503970".
- Carbo-mer wikiPageLength "3442".
- Carbo-mer wikiPageOutDegree "28".
- Carbo-mer wikiPageRevisionID "638311246".
- Carbo-mer wikiPageWikiLink Alkyne.
- Carbo-mer wikiPageWikiLink Allene.
- Carbo-mer wikiPageWikiLink Annulene.
- Carbo-mer wikiPageWikiLink Arene_substitution_pattern.
- Carbo-mer wikiPageWikiLink Aromatic_ortho_position.
- Carbo-mer wikiPageWikiLink Aromatic_ring_current.
- Carbo-mer wikiPageWikiLink Aromaticity.
- Carbo-mer wikiPageWikiLink Benzene.
- Carbo-mer wikiPageWikiLink Bond_length.
- Carbo-mer wikiPageWikiLink Calorie.
- Carbo-mer wikiPageWikiLink Category:Alkynes.
- Carbo-mer wikiPageWikiLink Chemical_shift.
- Carbo-mer wikiPageWikiLink Cyclohexane.
- Carbo-mer wikiPageWikiLink Cyclooctadecanonaene.
- Carbo-mer wikiPageWikiLink Diamagnetic_ring_current.
- Carbo-mer wikiPageWikiLink Diethyl_ether.
- Carbo-mer wikiPageWikiLink Hydrochloric_acid.
- Carbo-mer wikiPageWikiLink In_silico.
- Carbo-mer wikiPageWikiLink Isomer.
- Carbo-mer wikiPageWikiLink Mole_(unit).
- Carbo-mer wikiPageWikiLink Molecule.
- Carbo-mer wikiPageWikiLink Organic_chemistry.
- Carbo-mer wikiPageWikiLink Organic_synthesis.
- Carbo-mer wikiPageWikiLink Phenyl.
- Carbo-mer wikiPageWikiLink Phenyl_group.
- Carbo-mer wikiPageWikiLink Proton_NMR.
- Carbo-mer wikiPageWikiLink Proton_nuclear_magnetic_resonance.
- Carbo-mer wikiPageWikiLink Stannous_chloride.
- Carbo-mer wikiPageWikiLink Substituent.
- Carbo-mer wikiPageWikiLink Tin(II)_chloride.
- Carbo-mer wikiPageWikiLink File:All-carbo-benzene.png.
- Carbo-mer wikiPageWikiLink File:Carbo-benzene.png.
- Carbo-mer wikiPageWikiLink File:CarbobenzeneSynthesis.png.
- Carbo-mer wikiPageWikiLinkText "Carbo-mer".
- Carbo-mer wikiPageWikiLinkText "carbo-mer".
- Carbo-mer hasPhotoCollection Carbo-mer.
- Carbo-mer wikiPageUsesTemplate Template:For.
- Carbo-mer wikiPageUsesTemplate Template:Reflist.
- Carbo-mer subject Category:Alkynes.
- Carbo-mer hypernym Molecule.
- Carbo-mer type ChemicalCompound.
- Carbo-mer type Alkyne.
- Carbo-mer type Chemical.
- Carbo-mer type Hydrocarbon.
- Carbo-mer type Polymer.
- Carbo-mer comment "In organic chemistry, a carbomer is an expanded molecule obtained by insertion of a C2 unit in a given molecule. Carbomers differ from their templates in size but not in symmetry when each C–C single bond is replaced by at least one alkyne bond, and when a double bond is replaced by an allene bond.".
- Carbo-mer label "Carbo-mer".
- Carbo-mer sameAs Carbopol.
- Carbo-mer sameAs Carbomère.
- Carbo-mer sameAs Carbopol.
- Carbo-mer sameAs Carbopol.
- Carbo-mer sameAs m.056gr6.
- Carbo-mer sameAs Карбополы.
- Carbo-mer sameAs Karbomer.
- Carbo-mer sameAs Q2443122.
- Carbo-mer sameAs Q2443122.
- Carbo-mer sameAs 卡波姆.
- Carbo-mer wasDerivedFrom Carbo-mer?oldid=638311246.
- Carbo-mer depiction Carbo-benzene.png.
- Carbo-mer isPrimaryTopicOf Carbo-mer.