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  2. Allotropes of carbon - Wikipedia

    en.wikipedia.org/wiki/Allotropes_of_carbon

    D-carbon: D-carbon was proposed by theorists in 2018. [33] D-carbon is an orthorhombic sp 3 carbon allotrope (6 atoms per cell). Total-energy calculations demonstrate that D-carbon is energetically more favorable than the previously proposed T 6 structure (with 6 atoms per cell) as well as many others.

  3. Wikipedia:Featured picture candidates/Six Allotropes of Carbon

    en.wikipedia.org/.../Six_Allotropes_of_Carbon

    Eight allotropes of carbon:a) Diamond, b) Graphite, c) Lonsdaleite, d) Buckminsterfullerene (C70), e) C540, f) Fullerene (C70), g) Amorphous carbon, h) single-walled carbon nanotube Old version. With some of the data I gathered when I made the carbon nanotube image I nominated below, I created an overview of the variety of molecular structures ...

  4. Category:Allotropes of carbon - Wikipedia

    en.wikipedia.org/wiki/Category:Allotropes_of_carbon

    Pertains to the various forms that the Carbon element can assume, naturally or otherwise. Wikimedia Commons has media related to Allotropes of carbon . The main article for this category is Allotropes of carbon .

  5. Superdense carbon allotropes - Wikipedia

    en.wikipedia.org/wiki/Superdense_carbon_allotropes

    The following allotropes belong to the second group: MP8, [8] OP8, [8] SC4, [9] BC-8 [10] and (9,0). [11] These are hypothetically quasi-stable at the high pressure. BC-8 carbon is not only a superdense allotrope but also one of the oldest hypothetical carbon structures; initially it was proposed in 1984 in the work R. Biswas et al. [10] The MP8 structure proposed in the work J. Sun et al. [8 ...

  6. Allotropy - Wikipedia

    en.wikipedia.org/wiki/Allotropy

    Diamond and graphite are two allotropes of carbon: pure forms of the same element that differ in crystalline structure.. Allotropy or allotropism (from Ancient Greek ἄλλος (allos) 'other' and τρόπος (tropos) 'manner, form') is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements.

  7. Linear acetylenic carbon - Wikipedia

    en.wikipedia.org/wiki/Linear_acetylenic_carbon

    Electron micrograph of a linear carbon chain (carbyne) between a carbon lump and Fe electrode, approximately 36 nm wide image [1]. Linear acetylenic carbon (LAC), also known as carbyne or a Linear Carbon Chain (LCC), is an allotrope of carbon that has the chemical structure (−C≡C−) n as a repeat unit, with alternating single and triple bonds.

  8. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Marine biogeochemical cycles - Wikipedia

    en.wikipedia.org/wiki/Marine_biogeochemical_cycles

    The Oceanic carbon cycle is a central process to the global carbon cycle and contains both inorganic carbon (carbon not associated with a living thing, such as carbon dioxide) and organic carbon (carbon that is, or has been, incorporated into a living thing). Part of the marine carbon cycle transforms carbon between non-living and living matter.