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. Author manuscript; available in PMC: 2008 Nov 5.
Published in final edited form as: Tetrahedron. 2007 Nov 5;63(45):11030–11039. doi: 10.1016/j.tet.2007.08.041

Table 3.

Solvent dependence of the UV-visible spectral data for tripyrrindione 1.a

λmax / nm (ε) /L?mol-1?cm-1
Hexane Benzene CHCl3 CH3CN CH3OH (CH3)2SO
498 (32,800) 496 (23,600) 488 (25,500) 471 (27,300) 479 (31,000) 484 (31,700)
331 (30,300) 326 (32,800) 325 (31,100) 319 (32,300) 321 (29,200) 323 (30,900)
a

Solutions are ∼1 × 10-5 M in 1 and contain 2% CHCl3.