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Effect of substituents in the 5′ and 7′ positions on the spectra of merocyanines of 1,3,3-trimethyl-6′-nitroindoline-2-spiro-2′-[2H]-chromenes

✍ Scribed by M. A. Gal'bershtam; N. P. Samoilova; G. K. Bobyleva

No coin nor oath required. For personal study only.

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