title: Determining the structure of a benzene7.2-silicalite-1 zeolite using a single-crystal X-ray method.
abstract: A simple method for preparing orthorhombic single crystals of benzene-silicalite-1 was developed. A silicalite-1 crystal was pressed with a weight of 2 g along the +c and -c crystallographic axes while the temperature was increased to 473 K. The temperature was then slowly reduced to 313 K, and these heating and cooling steps were repeated three times. After the orthorhombic single crystals adsorbed benzene, the crystal structure of the resulting benzene-silicalite-1 was determined. There were two kinds of benzene molecules in the asymmetric unit. One was located at the intersection of the straight channels and the sinusoidal channels with the benzene ring parallel to the ac plane. The other benzene was located in the middle of the straight channel.
authors.affiliation: Department of Applied Chemistry, National Defense Academy, Hashirimizu, Yokosuka 239-8686, Japan.
authors.forename: Natsumi
authors.initials: N
authors.lastname: Kamiya
authors.forename: Wataru
authors.initials: W
authors.lastname: Iwama
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Kudo
authors.forename: Tomomi
authors.initials: T
authors.lastname: Nasuno
authors.forename: Shinjiro
authors.initials: S
authors.lastname: Fujiyama
authors.forename: Koji
authors.initials: K
authors.lastname: Nishi
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Yokomori
references.citation: Acta Crystallogr B. 2005 Apr;61(Pt 2):160-3
references.pmid: 15772448
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677