Preparation of surface functionalized porous organic-inorganic hybrid materials or mesoporous materials with coordinatively unsaturated metal sites and catalytic applications thereof

A method of selectively functionalizing coordinatively unsaturated metal sites of a porous organic-inorganic material comprising

• reacting a porous organic-inorganic hybrid material having metal unsaturated sites with one or more selected from a group consisting of an organic substance, an inorganic substance, an ionic liquid, and an organic-inorganic substance to functionalize the unsaturated metal sites, rather than hydroxide groups, on the surface of the material to form a surface functionalized porous organic inorganic hybrid material;
• or reacting a porous organic-inorganic mesoporous material having coordinately unsaturated metal sites with one or more selected from a group consisting of an organic substance, an inorganic substance, an ionic liquid, and an organic-inorganic substances to functionalize the unsaturated metal sites, rather than hydroxide groups, on the surface of the material to form a surface functionalized porous organic inorganic mesoporous material.