Metal-triggered supramolecular hydrogels based on bipyridine ligand possessing hydrazine moieties with metal ionsMetal-triggered supramolecular hydrogels based on bipyridine ligand possessing hydrazine moieties with metal ions
- Other Titles
- Metal-triggered supramolecular hydrogels based on bipyridine ligand possessing hydrazine moieties with metal ions
- Authors
- Go, Kayeong; Kim, Sehee; Kim, MinHye; Choi, Heekyoung; Jung, Sung Ho; Jung, Jong Hwa
- Issue Date
- Mar-2024
- Publisher
- 대한화학회
- Keywords
- bipyridine-based gelator; complexes; gelation; helical fiber; metalosupramolecular hydrogel
- Citation
- Bulletin of the Korean Chemical Society, v.45, no.3, pp 243 - 246
- Pages
- 4
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Bulletin of the Korean Chemical Society
- Volume
- 45
- Number
- 3
- Start Page
- 243
- End Page
- 246
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/69743
- DOI
- 10.1002/bkcs.12818
- ISSN
- 0253-2964
1229-5949
- Abstract
- Bipyridine-based gelator 1 having two D-alanine units was prepared, and its gelation ability was evaluated in the presence of Co(NO3)2 and AgNO3 in water. Gelator 1 could gelate H2O in the presence of Co(NO3)2 or AgNO3 (1.0 equiv.) in water. Gelator 1 formed a 2:1 (1:Co2+) octahedral complex with Co2+, whereas it formed a 2:1 (1:Ag+) tetrahedral complex with Ag+. The metallosupramolecular hydrogel with Co2+ assembled into a left-handed helical fiber, whereas that with Ag+ assembled into a nanorod structure. 1H NMR and FTIR analyses revealed that π–π stacking and intermolecular hydrogen bonds acted as the driving force for the formation of the supramolecular nanoarchitectures. Furthermore, to characterize the viscoelastic properties of hydrogels, rheology experiments were conducted at 25°C, including time, strain, and frequency sweeps. © 2024 Korean Chemical Society, Seoul & Wiley-VCH GmbH.
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