119931-43-0Relevant articles and documents
Substituted phthalocyanines
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, (2008/06/13)
Phthalocyanine of formula (I), wherein M is a metal or is 2H, bonded at 29 and 31 positions shown, R1 to R8 are the same or different and are independently selected from C1 to C20 alkyl, C1 -C20 alkenyl, --X--COO--X1, --X--O--Y, a, and --X--COZ where X is independently selected from a chemical bond, (CH2)n where n-0-20 or (CH2)a CH--CH (CH2)b where a and b are independently selected from 0-20 and a+b is in the range 0-20, X1 is independently selected from C1 -C20 alkyl or C2 -C20 alkenyl, Y is independently selected from C1 -C20 alkyl, C2 -C20 alkenyl or H and Z is selected from OH or NR1 R11 are independently selected from H, C1 -C20 alkyl and C2 -C20 alkenyl. These phthalocyanines may exhibit discotic liquid crystal phases, absorb infra-red radiation and make good Langmuir-Blodgett films.