1：Experimental Design and Method Selection:

The synthesis involved solvothermal conditions using CoCl2·6H2O, DIPT, and HPClA ligands. The structure was characterized by elemental analysis, IR spectroscopy, single-crystal X-ray diffraction, nitrogen adsorption analysis, and powder X-ray diffraction.

2：Sample Selection and Data Sources:

The ligands DIPT and HPClA were synthesized and used in the preparation of NCl-1. The luminescence and magnetic properties were investigated using powdered solid samples.

3：The luminescence and magnetic properties were investigated using powdered solid samples. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment included a Hitachi F-4600 fluorescence spectrophotometer, PerkinElmer Frontier FT-IR spectrometer, Rigaku Thermo Plus-EVO thermal analyzer, EuroVector EA3000 elemental analyzer, Rigaku model RINT Ultima III diffractometer, MPMS XL-7 SQUID magnetometer, and Bel Japan Inc. model BELSORP-max analyzer.

4：Experimental Procedures and Operational Workflow:

The synthesis of NCl-1 involved heating a mixture of CoCl2·6H2O, DIPT, HPClA, deionized water, and methanol solution at 423 K for five days. The luminescence and magnetic properties were then measured.

5：Data Analysis Methods:

The luminescence data were analyzed for quenching effects, and magnetic data were analyzed using the Curie-Weiss law.