This chemical is called Cyclobuta(1,2-a:3,4-a')diacenaphthylene, 6b,6c,12b,12c-tetrahydro-(6balpha,6cbeta,12bbeta,12calpha)-, and its CAS registry number is 304.38. With the molecular formula of C₂₄H₁₆, its molecular weight is 304.38.

Other characteristics of the Cyclobuta(1,2-a:3,4-a')diacenaphthylene, 6b,6c,12b,12c-tetrahydro-(6balpha,6cbeta,12bbeta,12calpha)- can be summarised as followings: (1)ACD/LogP: 4.37; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 4.368; (4)ACD/LogD (pH 7.4): 4.368; (5)ACD/BCF (pH 5.5): 1229.913; (6)ACD/BCF (pH 7.4): 1229.913; (7)ACD/KOC (pH 5.5): 5666.709; (8)ACD/KOC (pH 7.4): 5666.709; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.804; (13)Molar Refractivity: 99.421 cm³; (14)Molar Volume: 231.82 cm³; (15)Polarizability: 39.413×10^-24cm³; (16)Surface Tension: 62.572 dyne/cm; (17)Density: 1.313 g/cm³; (18)Flash Point: 252.621 °C; (19)Enthalpy of Vaporization: 74.339 kJ/mol; (20)Boiling Point: 503.412 °C at 760 mmHg; (21)Vapour Pressure: 0 mmHg at 25°C.

Production method of this chemical: The Cyclobuta(1,2-a:3,4-a')diacenaphthylene, 6b,6c,12b,12c-tetrahydro-(6balpha,6cbeta,12bbeta,12calpha)- could be obtained by the reactant of acenaphthylene. This reaction needs the solvent of various solvent(s). The yield is 52 %. In addition, this reaction needs the condition of irradiation.

You can still convert the following datas into molecular structure: 
1.SMILES: c1cc2c3c(cccc3c1)[C@@H]4[C@H]2[C@@H]5[C@H]4c6c7c5cccc7ccc6
2.InChI: InChI=1/C24H16/c1-5-13-6-2-10-16-19(13)15(9-1)21-22(16)24-18-12-4-8-14-7-3-11-17(20(14)18)23(21)24/h1-12,21-24H/t21-,22+,23+,24- 3.InChIKey: TVMWOWUBPJVYIC-NVPYSNMXBH