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The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
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Diiridium complexes with µ2-Sn ligands in different binding modes

Marcel Bamberg1, Thomas Gasevic2, Jose Martinez Fernandez1

  • 1Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, USA. tdtilley@berkeley.edu.

Dalton Transactions (Cambridge, England : 2003)
|August 27, 2026
PubMed

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Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
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Metal-Ligand Bonds

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In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
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Valence Bond Theory

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Stereoisomerism

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For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.