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  2. Charge-transfer complex - Wikipedia

    en.wikipedia.org/wiki/Charge-transfer_complex

    In chemistry, charge-transfer (CT) complex, or electron donor-acceptor complex, describes a type of supramolecular assembly of two or more molecules or ions. The assembly consists of two molecules that self-attract through electrostatic forces, i.e., one has at least partial negative charge and the partner has partial positive charge, referred ...

  3. Organic superconductor - Wikipedia

    en.wikipedia.org/wiki/Organic_superconductor

    Many materials may be characterized as organic superconductors. These include the Bechgaard salts and Fabre salts which are both quasi-one-dimensional, and quasi-two-dimensional materials such as k-BEDT-TTF 2 X charge-transfer complex, λ-BETS 2 X compounds, graphite intercalation compounds and three-dimensional materials such as the alkali ...

  4. Meisenheimer complex - Wikipedia

    en.wikipedia.org/wiki/Meisenheimer_complex

    A Meisenheimer complex or Jackson–Meisenheimer complex in organic chemistry is a 1:1 reaction adduct between an arene carrying electron withdrawing groups and a nucleophile. These complexes are found as reactive intermediates in nucleophilic aromatic substitution but stable and isolated Meisenheimer salts are also known.

  5. Charge-transfer - Wikipedia

    en.wikipedia.org/wiki/Charge-transfer

    Download as PDF; Printable version ... Charge-transfer may refer to: Intervalence charge transfer; Charge-transfer complex; Charge transfer band (absorption band) ...

  6. Organic semiconductor - Wikipedia

    en.wikipedia.org/wiki/Organic_semiconductor

    In the 1950s, researchers discovered that polycyclic aromatic compounds formed semi-conducting charge-transfer complex salts with halogens. In particular, high conductivity of 0.12 S/cm was reported in perylene–iodine complex in 1954. [3] This finding indicated that organic compounds could carry current.

  7. Iodine - Wikipedia

    en.wikipedia.org/wiki/Iodine

    This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -⁠din, -⁠deen) Appearance lustrous metallic gray solid ...

  8. Conductive polymer - Wikipedia

    en.wikipedia.org/wiki/Conductive_polymer

    Broad research on salts of charge transfer complexes continues today. While these compounds were technically not polymers, this indicated that organic compounds can carry current. While organic conductors were previously intermittently discussed, the field was particularly energized by the prediction of superconductivity [ 10 ] following the ...

  9. Knoevenagel condensation - Wikipedia

    en.wikipedia.org/wiki/Knoevenagel_condensation

    A Knoevenagel condensation is demonstrated in the reaction of 2-methoxybenzaldehyde 1 with the thiobarbituric acid 2 in ethanol using piperidine as a base. [7] The resulting enone 3 is a charge transfer complex molecule.