C-I stretching vibrations in iodobenzenes

Fugaeva, O. M.; Korobeinicheva, I. K.; Bardin, V. V.

doi:10.1007/bf00961058

Cited by 3 publications

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“…26,27 In this paper, since the donor and the acceptor of halogen bonding were integrated in one polymer, it was not possible to identify halogen bonding as in the previous studies. Nevertheless, the fact that the C−I stretching of PGA_B(I) was at 256 cm −1 , and the C−I stretching of iodobenzene was 267 cm −1 , 36 suggested that the iodine in PGA_B(I) could be highly halogen bonded.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The C–I stretching can be lengthened as halogen bonding forms, and accordingly the previous studies could compare the C–I stretching through the Raman spectra of donor polymer, acceptor polymer, and blends of the two polymers. , In this paper, since the donor and the acceptor of halogen bonding were integrated in one polymer, it was not possible to identify halogen bonding as in the previous studies. Nevertheless, the fact that the C–I stretching of PGA_B(I) was at 256 cm –1 , and the C–I stretching of iodobenzene was 267 cm –1 , suggested that the iodine in PGA_B(I) could be highly halogen bonded.…”

Section: Resultsmentioning

confidence: 99%

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Multifunctionality of Iodinated Halogen-Bonded Polymer: Biodegradability, Radiopacity, Elasticity, Ductility, and Self-Healing Ability

Oyama,

Kurokawa,

Hotta

2023

ACS Biomater. Sci. Eng.

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A polymer with high contents of ester bonds and iodine atoms was synthesized, exhibiting sufficient biodegradability and radioactivity for biomedical applications. The iodine moieties of the synthesized polyester can generate halogen bonding between molecules, which may develop additional functional properties through the bonding. In this study, poly(glycerol adipate) (PGA) was selected and synthesized as a polyester, which was then adequately conjugated with three different types of iodine compounds via the hydroxy groups of PGA. It was found that the iodine compounds could effectively work as donors of halogen bonding. The thermal analysis by differential scanning calorimetry (DSC) revealed that the glass transition temperature increased with the increase in the strength of interactions caused by π–π stacking and halogen bonding, eventually reaching 49.6 °C for PGA with triiodobenzoic groups. An elastomeric PGA with monoiodobenzoic groups was also obtained, exhibiting a high self-healing ability at room temperature because of the reconstruction of halogen bonding. Such multifaceted performance of the synthesized polyester with controllable thermal/mechanical properties was realized by halogen bonding, leading to a promising biomaterial with multifunctionality.

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Section: ■ Results and Discussionmentioning

confidence: 99%