“…In recent years, the area of inorganic-organic open framework materials has become one of the intense research activities [1][2][3][4][5][6][7] for their fascinating structural diversities and potential applications in catalysis, nonlinear optics and molecular sensing [8][9][10][11][12][13]. By closely controlling the properties of the ligands such as the shape [14,15], functionality [16,17], flexibility [18,19], conformation [20,21], and symmetry [22,23], frameworks with fantastic structures and desirable properties can be created.…”