Effect of confinement to porous glass on structure and optical properties of alkylcyanobiphenyls.

• Autorzy: Bezrodnaya T. , Gavrilko T. , Gnatyuk I. , Yaroshchuk O. , Puchkovskaya G. , Baran J. , Ratajczak H. , Kukielski J.I.
• Języki publikacji: EN

Abstrakty

EN

The 4-n-alkyl-4'-cyanobiphenyls (nCB, n is the number of carbon atoms in alkyl radical n=5, 8) confined to porous glasses with four different mean pore sizes (2, 4, 54 and 90 nm) have been studied. Using FT MIR and NIR spectroscopy methods we have investigated the interaction of nC8 molecules with the pore surface. It has been shown that the interaction is accompanied by the formation of hydrogen bonds between the SiOH group on the glass pore surface and the cyano-group of the nCB monomer. This is demonstrated by the change in the position and shape of CN stretching and Q(C identical to N)+Q(C=C) combination bands in the vibrational spectra of confined nCB depending on pore size and the length of the alkyl tail. To the contrary, in the case of benzophenone confined to PG, weak pi ...OH-Si hydrogen bonds are formed.

Słowa kluczowe

EN

confinement; porous glass; structure; optical properties; alkylcyanobiphenyls; pore surface

PL

szkło porowate; właściwości optyczne; struktura; fenyl

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2000
• Tom: Vol. 30, nr 4
• Strony: 585--590
• Opis fizyczny: Bibliogr. 19 poz., rys. 2

Twórcy

autor

Bezrodnaya T.

autor

Gavrilko T.

autor

Gnatyuk I.

autor

Yaroshchuk O.

autor

Puchkovskaya G.

autor

Baran J.

autor

Ratajczak H.

autor

Kukielski J.I.

• Institute of Physics of NAS Ukraine,.46 Nauki Pr., 03028 Kyiv, Ukraine.