Metallosis often causes the following symptoms: Cardiomyopathy (heart problems), including heart failure. Depression, anxiety and other mental problems. Visual impairment that may lead to blindness. Cognitive impairment. Nerve problems. Thyroid problems. Auditory impairment that may lead to deafness.
Coordination refers to the coordinate covalent bonds (dipolar bonds) between the ligands and the central atom. Originally, a complex implied a reversible association of molecules, atoms, or ions through such weak chemical bonds. As applied to coordination chemistry, this meaning has evolved.
In coordination chemistry, a ligand (/lÉªÉ¡Énd/) is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex.The bonding between metal and ligand generally involves formal donation of one or more of the ligand's electron pairs.he arrangement of the d-orbitals on the central atom (as determined by the 'strength' of the ligand), has a strong effect on virtually all the properties of the resulting complexes. E.g., the energy differences in the d-orbitals has a strong effect in the optical absorption spectra of metal complexes.