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  2. Disodium tetracarbonylferrate - Wikipedia

    en.wikipedia.org/wiki/Disodium_tetracarbonylferrate

    Disodium tetracarbonylferrate is the organoiron compound with the formula Na 2 [Fe(CO) 4].It is always used as a solvate, e.g., with tetrahydrofuran or dimethoxyethane, which bind to the sodium cation. [1]

  3. SN1CB mechanism - Wikipedia

    en.wikipedia.org/wiki/Sn1CB_mechanism

    In coordination chemistry, the S N 1cB (conjugate base) mechanism describes the pathway by which many metal amine complexes undergo substitution, that is, ligand exchange. Typically, the reaction entails reaction of a polyamino metal halide with aqueous base to give the corresponding polyamine metal hydroxide: [ 1 ]

  4. Coordination isomerism - Wikipedia

    en.wikipedia.org/wiki/Coordination_isomerism

    Coordination isomerism is a form of structural isomerism in which the composition of the coordination complex ion varies. In a coordination isomer the total ratio of ligand to metal remains the same, but the ligands attached to a specific metal ion change.

  5. Associative substitution - Wikipedia

    en.wikipedia.org/wiki/Associative_substitution

    The terminology is typically applied to organometallic and coordination complexes, but resembles the Sn2 mechanism in organic chemistry. The opposite pathway is dissociative substitution, being analogous to the Sn1 pathway. Intermediate pathways exist between the pure associative and pure dissociative pathways, these are called interchange ...

  6. Metal amides - Wikipedia

    en.wikipedia.org/wiki/Metal_amides

    Metal amides (systematic name metal azanides) are a class of coordination compounds composed of a metal center with amide ligands of the form NR 2 −.Amido complexes of the parent amido ligand NH 2 − are rare compared to complexes with diorganylamido ligand, such as dimethylamido.

  7. Spectrochemical series - Wikipedia

    en.wikipedia.org/wiki/Spectrochemical_series

    A spectrochemical series is a list of ligands ordered by ligand "strength", and a list of metal ions based on oxidation number, group and element.For a metal ion, the ligands modify the difference in energy Δ between the d orbitals, called the ligand-field splitting parameter in ligand field theory, or the crystal-field splitting parameter in crystal field theory.

  8. Ligand field theory - Wikipedia

    en.wikipedia.org/wiki/Ligand_field_theory

    Ligand field theory resulted from combining the principles laid out in molecular orbital theory and crystal field theory, which describe the loss of degeneracy of metal d orbitals in transition metal complexes.

  9. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    3 Inorganic chemistry problems. 4 Biochemistry problems. ... Download as PDF; Printable version; ... This article needs attention from an expert in chemistry.