@article { ISI:000229899200012,
	title = {Synthesis and NMR characterization of SAPO-35 from non-aqueous systems using hexamethyleneimine template},
	journal = {Materials Research Bulletin },
	volume = {40},
	number = {7},
	year = {2005},
	month = {JUL},
	pages = {1157-1165},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	type = {Article},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>SAPO-35 was synthesized using hexamethyleneimine template in non-aqueous systems. X-ray diffraction and scanning electron micrograph analysis shows the synthesized sample is pure and well crystalline. Presence of four stages (1.6\%, 0.8\%, 7.8\% and 8.4\%) of weight loss is observed by TG/DTA analysis. FT-IR analysis in the framework region shows the presence of tetrahedral T-O-T vibrations is similar to the other known aluminophosphate molecular sieves. FT-IR spectrum in the -OH region shows stretching vibrations at 3631, 3604 and 3580 cm(-1) can be assigned to OH groups in bigger cages near S6R, in bigger cages near D6R and those actually confined inside the D6R, respectively. The spectra for the as-synthesized sample show a single symmetrical Al-27 MAS NMR line at delta = 36.26 indicating the presence of a single tetrahedral aluminium species. Where as Si-29 and P-31 MAS NMR shows the presence of two peaks in both at (-89.9 and -95.15 ppm) and (-34.01 and -40.45 ppm) due to the Si substitution of P present in two different locations in double 6 ring (D6R) and in single 6 ring (S6R). Al-27 3Q-MAS NMR shows two peaks for environmentally different tetrahedral aluminium atoms. This is the first time we are showing such a fact which is not observable using ordinary MAS NMR. (c) 2005 Elsevier Ltd. All rights reserved.</p>},
	keywords = {XRD},
	issn = {0025-5408},
	doi = {10.1016/j,materresbull.2005.03.008},
	author = {Venkatathri, N}
}
@article { ISI:000230434500007,
	title = {Synthesis of high silica content silicoaluminophosphate-5 (SAPO-5) from non-aqueous medium using hexamethyleneimine template},
	journal = {Journal of Scientific \& Industrial Research},
	volume = {64},
	number = {7},
	year = {2005},
	month = {JUL},
	pages = {509-514},
	publisher = {NATL INST SCIENCE COMMUNICATION},
	type = {Article},
	address = {DR K S KRISHNAN MARG, NEW DELHI 110 012, INDIA},
	abstract = {<p>Silicoaluminophosphate-5 (SAPO-5) molecular sieve with up to 2.4 Si atom per unit cell have been synthesized using hexamethyleneimine template in ethylene glycol medium (molar ratio of silica in the reaction gels up to 0.3). Crystallinity and silicon incorporation are confirmed by XRD, XRF, N, sorption study, TG/DTA, SEM. pyridine TPD technique and hydroxyl region FT-IR. These materials with high Si concentration show higher activity for toluene alkylation reaction than samples prepared with up to 0.1 molar ratio of silica in the gel of aqueous media.</p>},
	keywords = {aqueous, FT-IR, hydroxyl region, non-aqueous, SAPO-5, SEM, TG/DTA, XRD},
	issn = {0022-4456},
	author = {Venkatathri, N}
}
