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Reference.org
Bite angle
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<p>In <a href="/facts/Coordination_chemistry/1tCyeQUm">coordination chemistry</a>, the bite angle is the angle on a central atom between two bonds to a <a href="/facts/Bidentate/hJF1lAJz">bidentate</a> ligand. This <a href="/facts/Ligand/6etB3qeW">ligand</a>–metal–ligand geometric parameter is used to classify <a href="/facts/Chelation/4G79sXBB">chelating</a> ligands, including those in <a href="/facts/Organometallic/bhqFz2P0">organometallic</a> complexes. It is most often discussed in terms of <a href="/facts/Catalysis/LPBS7TQC">catalysis</a>, as changes in bite angle can affect not just the activity and selectivity of a catalytic reaction but even allow alternative reaction pathways to become accessible. </p><p>Although the parameter can be applied generally to any chelating ligand, it is commonly applied to describe <a href="/facts/Diphosphine_ligand/hBqT62GC">diphosphine ligands</a>, as they can adopt a wide range of bite angles. </p>