Patent ID: 7674405

Claim:
A method for incorporating into zeolite pores dipolar nonlinear optical (DNLO) molecules in a uniform orientation, which comprises the steps of: (a) preparing a R-[D-π-A] or [D-π-A]-R by linking a R-group to the terminal of a parent molecule ([D-π-A]) of the dipolar nonlinear optical (DNLO) molecule; and (b) incorporating the R-[D-π-A] or [D-π-A]-R into the zeolite pores, wherein the R-group has hydrophobicity, the parent molecule ([D-π-A]) has hydrophilicity, D represents an electron donor portion, A represents an electron acceptor portion, and R represents alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, heteroaryl, arylalkyl, arylalkenyl, alkylaryl or their combination, wherein the zeolites are in a uniform orientation, and wherein when the zeolite pores are hydrophobic, the incorporation of the R-[D-π-A] or [D-π-A]-R into the zeolite pores occurs in the direction of its hydrophobic R-group and when the zeolite pores are hydrophilic, and the incorporation of the R-[D-π-A] or [D-π-A]-R into the zeolite pore occurs in the direction of its hydrophilic [D-π-A], whereby the DNLO molecules incorporated into the zeolite pores are present in only one orientation.