bidentate ligand


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Related to bidentate ligand: tridentate ligand

bidentate ligand

[bī′den‚tāt ′lig·ənd]
(inorganic chemistry)
A chelating agent having two groups capable of attachment to a metal ion.
References in periodicals archive ?
For complexes of iron(III) 2, cobalt(II) 3, nickel(II) 4, copper(II) 5 and zinc(II) 7, the NO3 group services served as bidentate ligand.
In summary (BROM-ANIS), (BROM-DMB) and (BROM-MB) behave as bidentate ligands via N-imine donor atom and amine nitrogen atom (attached with cyclohexyl ring of ligand) in complexes (1a)-(1c), (2a)-(2c) and (3a)-(3c) but (BROM-HB) and (BROM-o-VANI) behave as tridentate ligands via phenolic-O, imine-N and amine-N donor atoms in complexes (4a)-(4c) and (5a)-(5c).
The dithiocarbamate moiety has received much attention in recent years due to its ability to act as a bidentate ligand [1-3].
Thio- carbohydrazide H2NNHC(S)NHNH2 (abbreviated here as tch), the next higher homologue of thiosemi- carbazide, typically acts as a neutral bidentate ligand coordinating to a metal through the sulfur atom and one of the terminal nitrogen atoms, forming five- membered chelate rings [11].
The overall project has been divided into four separate phases: synthesis of the acridine derivative chosen as the intercalating moiety, synthesis of the bidentate ligands, coupling of the ligands to the acridine derivative, and chelation of the ligands with bis(bipyridyl)ruthenium(ll)dichloride.
For the purposes of this article, it is sufficient to note that anionic, cationic and neutral indium(III) complexes are known with a wide range of monodentate and bidentate ligands, and that coordination numbers between 3 and 6 have been identified.