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system
Please write the molecular formula of the molecule 11-[3-(5,7-diphenyl-9H-fluoren-1-yl)phenyl]-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2,4,6,9,11,13(21),15,17,19-nonaene;11-[3-(6,8-diphenyl-9H-fluoren-1-yl)phenyl]-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2,4,6,9,11,13(21),15,17,19-nonaene;5-[4-(6,8-diphenyl-9H-fluoren-1-yl)phenyl]-8,14,22-trioxa-1-borahexacyclo[11.7.1.13,19.02,7.09,21.015,20]docosa-2,4,6,9,11,13(21),15(20),16,18-nonaene;11-[3-(3,6,8-triphenyl-9H-fluoren-1-yl)phenyl]-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2,4,6,9,11,13(21),15,17,19-nonaene .
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C202H126B4O9
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