Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Maksim Sednev

Stefan W Hell

Christian Wurm

Vladimir Belov

Alexey Butkevich

Heydar Shojaei

Dirk Kamin

Compounds of formula I are disclosed: wherein X, X, X, Xare independently H, F, Cl, Br, I, CN, NO, OR, SR, NRR, COR, COOR, CONRR, PORR, SOR, SORor R; Rand Rare, e.g., H, alkyl or aryl or optionally a ring; Ris, e.g., alkyl, alkenyl, alkynyl, aryl or cycloalkyl; Y is OR, NRR, or NRR; Q is O, S, SO, NR, C(R), Si(R), Ge(R), P(&#x2550;O)Ror P(&#x2550;O)OR; Q and Xcan optionally form part of a ring; L and M are independently OR, SR, NRRand R; L and M can optionally form part of a ring; Z is O, S, NR, CRRor aryl; and Z and Xcan optionally form part of a ring.

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Wuerzburg, Germany

Maksim Sednev