LONG-WAVE ABSORBENT PHOTOINITIATORS

Compounds according to general formula (I)in which M is Ge or Sn, RAr isR1, R2, R3, R4, R5, independently of one another in each case, are -H, -F, -Cl, -OR6, -SR6, -N(R6)2, -CF3, -CN, -NO2, -COOR6, -CONHR6, a branched, cyclic or preferably linear C1-20 alkyl, C2-20 alkenyl, C1-20 alkyloxy or a C2-20 alkenoxy radical, which can be interrupted one or more times by O, S or -NR6- and substituted by one or more polymerizable groups and/or radicals R6, R6 is H, a branched, cyclic or preferably linear C1-20 alkyl or C2-20 alkenyl radical, R7 is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C1-20 alkylene radical, which can be interrupted one or more times by O, S or -NR6- and substituted by one or more polymerizable groups, =O and/or radicals R6, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials. 根据通式(I)的化合物其中M为Ge或Sn；RAr为R1、R2、R3、R4、R5在每种情况下彼此独立地为-H，-F，-