5] fragments react quickly with any available donor atom to yield a M[(CO).
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).
When atoms of these two kinds interact, a re-arrangement of the electron distribution occurs; an electron from the donor atom
migrates to the acceptor atom thereby making the acceptor atom negatively charged and the donor atom
At the heart of coordination chemistry lies the coordinate bond, in its simplest sense arising from donation of a pair of electrons from a donor atom
to an empty orbital on a central metalloid or metal.
These 16-electron M(CO)5 fragments react quicklywith any available donor atom to form a M[(CO).
1] in the free ligand, shifts to lower wavenumber in 1-18, showing that the ligands coordinate to metal via the imine donor atom.
3] ligands behave as a monodentate ligand via N imine donor atom in 1-9, but behaves as bidentate ligand via anionic O atom & imine N atoms in 10-18.
Forty sections treat ligand whose donor atoms come from a single group in the priodic table, ligands with mixed donors, and multidentate macrocyclic ligands.
Mixed donor atoms ligands arte subdivided into Schiff bases; amino acids, peptides, and proteins; complexones; and bidentate ligands.