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  2. Transition metal complexes of aldehydes and ketones

    en.wikipedia.org/wiki/Transition_metal_complexes...

    In monometallic complexes, aldehydes and ketones can bind to metals in either of two modes, η 1-O-bonded and η 2-C,O-bonded. These bonding modes are sometimes referred to sigma- and pi-bonded. These forms may sometimes interconvert. The sigma bonding mode is more common for higher valence, Lewis-acidic metal centers (e.g., Zn 2+). [1]

  3. ePathshala - Wikipedia

    en.wikipedia.org/wiki/EPathshala

    The platform offers a slew of educational resources, including NCERT textbooks for classes 1-12, audio-visual resources by NCERT, periodicals, supplements, teacher training modules and a variety of other print and non-print materials. These materials can be downloaded by the user for offline use with no limits on downloads.

  4. Norrish reaction - Wikipedia

    en.wikipedia.org/wiki/Norrish_reaction

    The Norrish type I reaction is the photochemical cleavage or homolysis of aldehydes and ketones into two free radical intermediates (α-scission). The carbonyl group accepts a photon and is excited to a photochemical singlet state. Through intersystem crossing the triplet state can be obtained.

  5. Semicarbazone - Wikipedia

    en.wikipedia.org/wiki/Semicarbazone

    Many semicarbazones are crystalline solids, useful for the identification of the parent aldehydes/ketones by melting point analysis. [ 1 ] A thiosemicarbazone is an analog of a semicarbazone which contains a sulfur atom in place of the oxygen atom.

  6. Carbonyl group - Wikipedia

    en.wikipedia.org/wiki/Carbonyl_group

    A ketone compound containing a carbonyl group (C=O) For organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom.

  7. Büchner–Curtius–Schlotterbeck reaction - Wikipedia

    en.wikipedia.org/wiki/Büchner–Curtius...

    The Buchner–Curtius–Schlotterbeck reaction is the reaction of aldehydes or ketones with aliphatic diazoalkanes to form homologated ketones. [1] It was first described by Eduard Buchner and Theodor Curtius in 1885 [2] and later by Fritz Schlotterbeck in 1907. [3]

  8. Ketone - Wikipedia

    en.wikipedia.org/wiki/Ketone

    Ketones are trigonal planar around the ketonic carbon, with C–C–O and C–C–C bond angles of approximately 120°. Ketones differ from aldehydes in that the carbonyl group (C=O) is bonded to two carbons within a carbon skeleton. In aldehydes, the carbonyl is bonded to one carbon and one hydrogen and are located at the ends of carbon chains.

  9. Tollens' reagent - Wikipedia

    en.wikipedia.org/wiki/Tollens'_reagent

    Tollens' test for aldehyde: left side positive (silver mirror), right side negative Ball-and-stick model of the diamminesilver(I) complex. Tollens' reagent (chemical formula ()) is a chemical reagent used to distinguish between aldehydes and ketones along with some alpha-hydroxy ketones which can tautomerize into aldehydes.