Intra-molecular hydrogen bonding stabilization based-fluorescent chemosensor for CO 2 : Application to screen relative activities of CO 2 absorbents

Kang, Seungyoon; Kim, Jongseob; Park, Joo-Hyoung; Ahn, Chi Kyu; Rhee, Chang-Houn; Han, Min Su

doi:10.1016/j.dyepig.2015.07.033

“…It can react with CO 2 to generate a stable carbamate adduct, inhibiting the PET process and turning on strong emission (l em = 415 nm, Supporting Information, Figure S5). [15] AMA (10 mm, 1/100 to the amount of CO 2 ) was added to the vesicle solution. This amount of AMA is insufficient to disrupt the vesicle structure.…”

mentioning

confidence: 99%

Gas‐Constructed Vesicles with Gas‐Moldable Membrane Architectures

Xu

¹

,

Chen

²

,

Yan

³

2019

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Integrating gas as a main building block into nanomaterial construction is a challenging mission that remains elusive. Herein, we report a gas‐constructed vesicular system formed by CO2 gas and frustrated Lewis pairs (FLPs). Two molecular triads bearing three bulky borane and phosphine groups are designed as trivalent disc‐like FLP monomers. CO2, as a gas cross‐linker, can drive the two‐dimensional polymerization of these two FLP monomers, leading to the generation of planar FLP networks that further transform into a thermodynamically favored membranous vesicle structure. Gas‐guided vesicle formation is also applicable to other inert but FLP‐activatable gases. Different gas linkages can form vesicles with distinct architectures, sizes, and morphologies. We envisage that this study would suggest a new concept that exploits gases to fabricate tunable nanomaterials.

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“…1‐Aminomethylanthracene (AMA) is a common dye that has no fluorescence due to the photoinduced electron transfer (PET) effect of the amine group. It can react with CO 2 to generate a stable carbamate adduct, inhibiting the PET process and turning on strong emission ( λ em =415 nm, Supporting Information, Figure S5) . AMA (10 μ m , 1/100 to the amount of CO 2 ) was added to the vesicle solution.…”

Section: Methodsmentioning

confidence: 99%

Gas‐Constructed Vesicles with Gas‐Moldable Membrane Architectures

Xu

¹

,

Chen

²

,

Yan

³

2019

View full text Add to dashboard Cite

Integrating gas as a main building block into nanomaterial construction is a challenging mission that remains elusive. Herein, we report a gas‐constructed vesicular system formed by CO2 gas and frustrated Lewis pairs (FLPs). Two molecular triads bearing three bulky borane and phosphine groups are designed as trivalent disc‐like FLP monomers. CO2, as a gas cross‐linker, can drive the two‐dimensional polymerization of these two FLP monomers, leading to the generation of planar FLP networks that further transform into a thermodynamically favored membranous vesicle structure. Gas‐guided vesicle formation is also applicable to other inert but FLP‐activatable gases. Different gas linkages can form vesicles with distinct architectures, sizes, and morphologies. We envisage that this study would suggest a new concept that exploits gases to fabricate tunable nanomaterials.

show abstract

“…Nevertheless, previously reported CO 2 sensors based on fluorescent methods are mainly performed in solution, [19][20][21][22][23][24][25][26] which is inconvenient for practical use (Table S1, ESI †). Jiang et al developed a quantitative CO 2 sensor based on AIE-active organogels.…”

Section: Introductionmentioning

confidence: 99%