The Structure of RUB-1, (c8h16n)6[b6si48o108], a Boron Containing Levyne-Type Zeolite, Occluding N-methyl-quinuclidinium in the Cage-Like Pores

C 48 H 96 B 6 N 6 O 108 Si 48 , trigonal, R 3 ‾ m $R\overline{3}m$ (no. 166), a = 12.8892(1) Å, c = 22.3058(2) Å, V = 3209.23(4) Å 3 , Z = 1, density = 2.02(2) g·cm −3 , R ( F ) = 0.038, Chi 2 = 2.86, T = 293 K.