When a strong ligand complexes the metal ion, the crystal field splitting is large and some electrons pair rather than occupying the higher energy d orbitals. Compare with glyceride . A diglyceride or triglyceride that contains more than one type of fatty acid connected to glycerol via an ester linkage. Natural oils and fats usually contain several different mixed glycerides. A material that contains many small cavities interconnected with pores of precisely uniform size.
Zeolites are an example.
Molecular sieves adsorb molecules that are small enough to pass through their pore systems- especially water. They are often used as drying agents, and to separate large molecules from smaller ones in preparatory work and in exclusion chromatography. A ligand that has only one atom that coordinates directly to the central atom in a complex. Flammable liquid compounds found in petroleum and natural gas. Octane is used as a fuel and as a raw material for building more complex organic molecules.