دورية أكاديمية
Exceptional Thermo-Mechano-Fluorochromism and Nanomechanical Analysis of Mechanically Responsive J and H Type Polymorphic Systems
| العنوان: | Exceptional Thermo-Mechano-Fluorochromism and Nanomechanical Analysis of Mechanically Responsive J and H Type Polymorphic Systems |
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| المؤلفون: | Poonam Deka, Susobhan Das, Parishmita Sarma, Kalyan J. Kalita, Ratheesh K. Vijayaraghavan, C. Malla Reddy, Ranjit Thakuria |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Medicine, Genetics, Molecular Biology, Physiology, Ecology, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, h aggregate system, crystal structures govern, polymorphic organic fluorophore, mechanically responsive j, distinct photophysical properties, polymorphic j, nanomechanical properties, mechanosalient properties, state uv, shed light, relatively scarce, ray diffraction, powder x, potential importance, nanomechanical analysis, mechanochromic luminescence, mechanical grinding, hypsochromic shift, hirshfeld surfaces, fluorochromic behavior, energy frameworks |
| الوصف: | Mechanically responsive organic crystals with thermo-mechano-fluorochromic behavior are relatively scarce. A polymorphic J and H aggregate system with such mechanosalient properties has potential importance for the understanding of structure-mechanochromic luminescence. Herein, we not only carefully investigated the nanomechanical properties of a polymorphic organic fluorophore of (biphenyl-4-ylmethylidene) propanedinitrile but also demonstrated their exceptional thermo-mechanochromic luminescence. Both the polymorphs were characterized using single crystal X-ray diffraction, solid-state UV, SSFL, nanoindentation, Hirshfeld surfaces, energy frameworks, powder X-ray diffraction, and differential scanning calorimetry thermograms. Relatively weak π–π stacking interactions present in the crystal structures govern the hypsochromic shift on mechanical grinding. Density functional theory calculations provide tremendous support to shed light on the origin of the distinct photophysical properties of the two polymorphs. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://figshare.com/articles/journal_contribution/Exceptional_Thermo-Mechano-Fluorochromism_and_Nanomechanical_Analysis_of_Mechanically_Responsive_J_and_H_Type_Polymorphic_Systems/24975680Test |
| DOI: | 10.1021/acs.cgd.3c01079.s001 |
| الإتاحة: | https://doi.org/10.1021/acs.cgd.3c01079.s001Test https://figshare.com/articles/journal_contribution/Exceptional_Thermo-Mechano-Fluorochromism_and_Nanomechanical_Analysis_of_Mechanically_Responsive_J_and_H_Type_Polymorphic_Systems/24975680Test |
| حقوق: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.122F0EA4 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.cgd.3c01079.s001 |
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