Emission behaviours of novel V- and X-shaped fluorophores in response to pH and force stimuli

Literature Information

Publication Date 2017-04-06
DOI 10.1039/C7CP01281K
Impact Factor 3.676
Authors

Hong-Yu Fu, Ning Xu, Yi-Min Pan, Xiao-Lin Lu, Min Xia


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Abstract

A family of novel fluorophores with V- and X-shaped skeletons is rationally designed and prepared. Due to the extended cross π-conjugation in the X-shaped ones, their emission wavelengths in both solution and the solid state exhibit considerable bathochromic shifts compared with those of the V-shaped ones. It is found that a heavy intramolecular charge transfer (ICT) effect is the primary element for the mechanofluorochromic (MFC) response of this family, and an appropriate crystallinity of the sample is also indispensible for it to be MFC-active. Additionally, most fluorophores in this family are responsive to pH stimuli and display diverse and reversible changes of emission features. Interestingly, a V-shaped fluorophore exhibits a unique size-dependent emission behaviour, which makes it a distinctive three-color emitter.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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