Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are ...

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For ...

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain ...

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to ...

Isomerism in Complexes Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be ...

Isomerism in Complexes Isomers are different chemical species that have the same chemical formula. Transition metal complexes often exist as geometric ...

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which ...

Crystal Field Theory To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between ...

Tetrahedral Complexes Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of ...

Color in Coordination Complexes When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For ...