摘要
Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer,[Zn（HPO4）（H2PO4）][C6H10N3O2]（denoted as ZnPO-CJ58）.The inorganic framework of [Zn（HPO4）（H2PO4）]·[C6H10N3O2] consists of 4-membered rings formed by ZnO3OHis and PO2（OH）2 tetrahedra.The HPO4 and amino acid moieties hang on the Zn center.Such a framework is stabilized by extensive multipoint hydrogen bonds involving the phosphate units and histidine molecules to form a pseudo-3D supramolecular structure.It is noteworthy that ZnPO-CJ58 is the first zinc phosphate cluster with amino acid acting as the ligand.It exhibits photoluminescence excited at a wavelength of 220 nm.Interestingly,ZnPO-CJ58 can transform into a layered structure （C6H10N3O2）Zn2·（HPO4）（PO4）·H2O（ZnPO-CJ36） through further reacting with water or zinc acetate dihydrate in water at 85℃ for 1 h.This work will be helpful for the synthesis of crystalline inorganic-organic hybrid materials with biofunctional molecules.
Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer,[Zn（HPO4）（H2PO4）][C6H10N3O2]（denoted as ZnPO-CJ58）.The inorganic framework of [Zn（HPO4）（H2PO4）]·[C6H10N3O2] consists of 4-membered rings formed by ZnO3OHis and PO2（OH）2 tetrahedra.The HPO4 and amino acid moieties hang on the Zn center.Such a framework is stabilized by extensive multipoint hydrogen bonds involving the phosphate units and histidine molecules to form a pseudo-3D supramolecular structure.It is noteworthy that ZnPO-CJ58 is the first zinc phosphate cluster with amino acid acting as the ligand.It exhibits photoluminescence excited at a wavelength of 220 nm.Interestingly,ZnPO-CJ58 can transform into a layered structure （C6H10N3O2）Zn2·（HPO4）（PO4）·H2O（ZnPO-CJ36） through further reacting with water or zinc acetate dihydrate in water at 85℃ for 1 h.This work will be helpful for the synthesis of crystalline inorganic-organic hybrid materials with biofunctional molecules.
基金
Supported by the National Natural Science Foundation of China(No.20080504)
