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[½»Á÷] the 2-oxaindan

Structures and photo- and thermochromic properties of spiropyrans of the 2-oxaindan series with polycondensed chromene fragments
S. M. Aldoshin1, V. A. Lokshin1, A. N. Rezonov1, N. V. Volbushko1, N. E. Shelepin1, M. I. Knyazhanskii1, L. O. Atovmyan1 and V. I. Minkin1

Chemistry of Heterocyclic Compounds
https://www.springerlink.com/content/w5t72w8563355220/

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