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What is the molecular formula of the molecule identified by [8-(4-tert-butyl-2-phenylphenyl)-11-methyl-18-phenyl-14-(4-phenylphenyl)-8,14-diaza-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15(20),16,18-nonaen-4-yl]-triphenylsilane ?
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C71H57BN2Si
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