"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"
"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"
"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"
"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"
"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"
"bis(9,9-dimethyl-9H-fluoren-2-yl)diphenylsilane"