... spectroscopy of theNE sample further confirm the absence of the template and the presence of the organic groups. The sample has a type-IV isotherm with a BET surface area of 815 m2g-1 and pore ... around-17 and -24 ppm represent the D1 and the D2sites,respectively. The signals at -51, -56, and -64 ppm arefrom the T1,T2, and T3sites, respectively. The presence of theD and T sites ... organosilicasource. For a typical synthesis, to a mixture of 3 g NaCl,0.65 g of Pluronic P123 (BASF), 16.8 g of 2 M HCl, and 5.6 g H2O, m g(m = 0.36, 0.48, and 1.44) of octaethoxy-1,3,5-trisilapentane was...