Fine Structures of 8-G-1-(𝑝-YC_𝟔H_𝟒C≡CSe)C_𝟏𝟎H_𝟔 (G = H, Cl, and Br) in Crystals and Solutions: Ethynyl Influence and Y- and G-Dependences

Figure 2

Dimer formed in 1a, which contains 1a _A and 1a _B: (a) a side view (r(Se1—C6^′): 3.392 Å) and (b) a top view.