1：Experimental Design and Method Selection:

The study involved the synthesis of a 2,6-substituted anthracene derivative through a multi-step pathway starting from m-anisaldehyde, including bromination, Grignard reactions, reductions, and esterification. The photochemical dimerization was induced by UV irradiation at 365 nm, and properties such as UV-vis absorption, fluorescence, and thermal scission were characterized using various spectroscopic and thermal analysis techniques.

2：Sample Selection and Data Sources:

Compounds were synthesized in the laboratory, and their properties were measured using standard solvents like ethanol, chloroform, and acetonitrile for spectroscopic studies.

3：List of Experimental Equipment and Materials:

Equipment included FTIR spectrometer (Perkin Elmer FTIR SPECTRUM 1000), NMR spectrometer (Bruker Avance-III 400 MHz), DSC apparatus (DSC1/700 Mettler-Toledo), melting point apparatus (IA90000 Electrothermal), LC-MS system (Agilent Technologies 1100 series), UV lamp (Metalight Classic with 365 nm lamps), fluorescence spectrophotometer (Cary Eclipse Agilent), and UV-vis spectrophotometer (Specord 200 AnalyticJena). Materials were purchased from Acros Organics, Sigma-Aldrich, or TCI Europe.

4：Experimental Procedures and Operational Workflow:

Synthesis steps included bromination, Grignard reactions, reductions, and esterification under specific conditions (e.g., reflux, inert atmosphere). Dimerization was performed by irradiating solutions with UVA light. Measurements involved recording IR, NMR, DSC, melting points, LC-MS, UV-vis, and fluorescence spectra under controlled parameters.

5：Data Analysis Methods:

Data were analyzed using techniques like Arrhenius plot for thermal scission kinetics, quantum yield calculations using standard references, and normalization of absorption and fluorescence data.