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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 ...
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 ...
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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.
Fig. 1. The parabolas of outer-sphere reorganisation energy of the system two spheres in a solvent. Parabola i: the charge on the first, transfer to the second, parabola f: the charge on the second, transfer to the first. The abscissa is the transferred amount of charge Δe or the induced polarization P, the ordinate the Gibbs free energy.
They appear in the Butler–Volmer equation and related expressions. The symmetry factor and the charge transfer coefficient are dimensionless. [1] According to an IUPAC definition, [2] for a reaction with a single rate-determining step, the charge transfer coefficient for a cathodic reaction (the cathodic transfer coefficient, α c) is defined as:
Bond length (less than 1 nm) Typically more than 1 nm Mean free path: Larger than the inter-site distance: Inter-site distance Mobility: Typically larger than 1 cm 2 /(V⋅s); independent of electric field; decreases with increasing temperature: Typically smaller than 0.01 cm 2 /(V⋅s); depends on electric field; increases with increasing ...
Interpolymer complexes (IPC) are the products of non-covalent interactions between complementary unlike macromolecules in solutions. [1] There are four types of these complexes: Interpolyelectrolyte complexes (IPEC) or polyelectrolyte complexes (PEC) [2] Hydrogen-bonded interpolymer complexes [3] Stereocomplexes [4] Charge-transfer complexes [5]
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