TY - JOUR
T1 - Dynamics of two-dimensionally arranged n-octylammonium ions intercalated into tetrasilicicfluormica
AU - Yamauchi, Miho
AU - Ishimaru, Shin'ichi
AU - Ikeda, Ryuichi
N1 - Funding Information:
This work was partly supported by a Grant-in-aid for scientific Research (B) No. 09440234 and (C) No. 10640554 from the Ministry of Education, Science, Sports and Culture, Japan, and University of Tsukuba Research Projects.
PY - 1999/12
Y1 - 1999/12
N2 - The dynamic behaviour of n-octylammonium ions intercalated into tetrasilicicfluormica was investigated by measuring 1H and 2H solid state NMR spectra and 1H spin-lattice relaxation times. X-Ray diffraction measurements revealed that the cations are arranged with the long axis parallel to the clay sheet. Uniaxial rotation of cations was found to take place above ca. 200 K among non-equivalent potential wells made by clay sheets. As a new type of 2-D motion mode, whole cationic in-plane tumbling in the 2-D layer seems to be excited above ca. 450 K. The obtained results are compared with those previously reported on saponite of an analogous structure.
AB - The dynamic behaviour of n-octylammonium ions intercalated into tetrasilicicfluormica was investigated by measuring 1H and 2H solid state NMR spectra and 1H spin-lattice relaxation times. X-Ray diffraction measurements revealed that the cations are arranged with the long axis parallel to the clay sheet. Uniaxial rotation of cations was found to take place above ca. 200 K among non-equivalent potential wells made by clay sheets. As a new type of 2-D motion mode, whole cationic in-plane tumbling in the 2-D layer seems to be excited above ca. 450 K. The obtained results are compared with those previously reported on saponite of an analogous structure.
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U2 - 10.1515/zna-1999-1213
DO - 10.1515/zna-1999-1213
M3 - Article
AN - SCOPUS:0040122362
SN - 0932-0784
VL - 54
SP - 755
EP - 760
JO - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
JF - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
IS - 12
ER -