InChI=1S/C22H50N2O3Si3/c1-20(2,3)28(10,11)23-17(19(26)27-30(14,15)22(7,8)9)16-18(25)24-29(12,13)21(4,5)6/h17,23H,16H2,1-15H3,(H,24,25)/t17-/m1/s1