《Crystal structure of dimethyl 5-(4-ethylphenyl)-4-[(4-ethylphenyl)ethynyl]-6,11-diphenyl-1,3,6,11-tetrahydro-2H-6,11-epoxycyclopenta[a]anthracene-2,2-dicarboxylate》 was published in Acta Crystallographica, Section E: Crystallographic Communications in 2020. These research results belong to Meng, Xiang-Zhen; Cheng, Dong. COA of Formula: C20H14O The article mentions the following:
In the central fused ring system of the title compound, C51H42O5, all of the five-membered rings are in an envelope conformation. The dihedral angle between the two benzene rings in the fused ring system is 74.66 (7)°. In the crystal, mols. are linked by C-H···π interactions, forming a layer parallel to the ab plane. Each mol. acts as a double donor as well as a double acceptor of the C-H···π interactions. Hirshfeld surface anal. and two-dimensional fingerprint plots indicate that the most important contributions to the crystal packing are from H···H (61.4%) and C···H/H···C (25.3%) contacts. In the experimental materials used by the author, we found 1,3-Diphenylisobenzofuran(cas: 5471-63-6COA of Formula: C20H14O)
1,3-Diphenylisobenzofuran(cas: 5471-63-6) can be used as a fluorescent probe for detection of superoxide anion radical (O2−) inside the membrane lipid layer by DPBF fluorescence quenching method. 1,3-Diphenylisobenzofuran(DPBF) can be used to study the single crystal molecular structure and solution photophysical properties of DPBF.COA of Formula: C20H14O
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem