Fig. 2
From: Nanographenes as electron-deficient cores of donor-acceptor systems
Synthesis and crystal structure of 2 and optical properties. a optimized synthetic route for 2. b the doubly concave structure of 2 represented by 2a. The thermal ellipsoids are set at 50% probability level. c UV-Vis absorption spectra of 2 measured in dichloromethane (the concentration of 2 is 10−5 mol·L−1). Pd2(dba)3 = tris(dibenzylideneacetone)dipalladium. BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthalene
