Abstract
AbstractThe single crystals of a butterfly‐shaped carbonyl‐bridged twistarene 3 were obtained by slow diffusion of methanol into its chloroform solution. The single‐crystal structure analysis indicated that 3 crystallized in a triclinic space group (P‐1). The two‐photon absorption (TPA) and nonlinear optical properties of single crystal of 3 were investigated in the range of 400 nm ∼650 nm. This is the first example of the TPA study based on single crystals made from the carbonyl‐bridged twistarene. The corresponding TPA cross‐section was found to be 3.69 GM at 800 nm.
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