Ihe pyrociectric properties of the monomer and pztially end fufty polyme~d crystals of the ~~tolu~nc ~lphon3te) of 2,4-hexa&yne-l&diol (TS) were measured along their b axes from tOO to 300 K T-o peaks in the pyroclcctnc current or monomer crystals were found at 192 and 15 1 K. It is concluded that t
Polarizabilities and local fields in a diacetylene monomer and polymer crystal
β Scribed by M. Hurst; R.W. Munn
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 867 KB
- Volume
- 127
- Category
- Article
- ISSN
- 0301-0104
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π SIMILAR VOLUMES
A rigorous treatment of the local electric field is used to calculate effective molecular polarizabilitics from optical data for naphthalenc, anthracene, phenanthrene and biphenyl crystals. The principal axes of polarizability are typi-c~lly 10" from the molecular axes, in accord with spectroscopic
Raman scattering is used to make a dynamical study of the disubstituted and perdeuterated diacetylene pTS-D in monomer crystal from, where an incommensurate phase exists from T, = 155 K to r; = 195 K. The low-frequency polarised Raman spectra in the temperature interval 9-300 K show that the phase t