MOLECULAR TUNNELING IN P-TERT-BUTYLCALIX[4]ARENE(2/1)P-XYLENE

被引：9

作者：

PRAGER, M

CACIUFFO, R

AMORETTI, G

CARLILE, CJ

CODDENS, G

FILLAUX, F

FRANCESCANGELI, O

UGOZZOLI, F

机构：

[1] UNIV ANCONA,DIPARTIMENTO SCI MAT & DELLA TERRA,I-60131 ANCONA,ITALY

[2] UNIV PARMA,DIPARTIMENTO FIS,I-43100 PARMA,ITALY

[3] RUTHERFORD APPLETON LAB,ISIS,DIDCOT OX11 0QX,OXON,ENGLAND

[4] CENS,LAB LEON BRILLOUIN,F-91191 GIF SUR YVETTE,FRANCE

[5] CNRS,SPECTROCHIM INFRAROUGE & RAMAN LAB,F-94320 THIAIS,FRANCE

[6] UNIV PARMA,IST CHIM GEN & INORGAN,I-43100 PARMA,ITALY

[7] CNR,CTR STRUTTURIST DIFFRATTOMETR,I-43100 PARMA,ITALY

来源：

MOLECULAR PHYSICS | 1994年 / 81卷 / 03期

关键词：

D O I：

10.1080/00268979400100411

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Inelastic neutron scattering has been used to study molecular tunnelling in the p-tert-butylcalix[4]arene(2:1)p-xylene complex. At low temperature the measured spectra show several bands between 0.63 and 2.6 meV which are interpreted as being due to transitions between tunnel-split librational states of the p-xylene methyl groups. Effects of coupling between a CH3 group and the whole p-xylene molecule have been observed. The rotational barrier provided by the host lattice is very small and the methyl groups behave as almost free quantum rotors.

引用

页码：609 / 619

页数：11

共 12 条

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