التفاصيل البيبلوغرافية
| العنوان: |
Noncovalent Bonding Caught in Action: From Amorphous to Cocrystalline Molecular Thin Films |
| المؤلفون: |
Olga Chovnik (2017144), Sidney R. Cohen (247318), Iddo Pinkas (149095), Lothar Houben (1365690), Tatiana E. Gorelik (3702247), Yishay Feldman (1687321), Linda J. W. Shimon (7253147), Mark A. Iron (1858534), Michal Lahav (1516243), Milko E. van der Boom (8660271) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Biochemistry, Biotechnology, Immunology, Cancer, Inorganic Chemistry, Plasma Physics, Infectious Diseases, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, scanning electron microscopy, nanomechanical measurements show, bonded assembly crystallizes, noncovalent bonding caught, nanoscale molecular films, exposing amorphous films, amorphous films influences, surface transformation results, transformation proceeds, molecular arrangements, haloarene results, bonding interactions, free amorphous, surface halogen, solution crystallize, situ <, section analysis, readily obtained, noncentrosymmetric material, gradual strengthening |
| الوصف: |
We demonstrate the solvent-free amorphous-to-cocrystalline transformations of nanoscale molecular films. Exposing amorphous films to vapors of a haloarene results in the formation of a cocrystalline coating. This transformation proceeds by gradual strengthening of halogen-bonding interactions as a result of the crystallization process. The gas–solid diffusion mechanism involves formation of an amorphous metastable phase prior to crystallization of the films. In situ optical microscopy shows mass transport during this process, which is confirmed by cross-section analysis of the final structures using focused ion beam milling combined with scanning electron microscopy. Nanomechanical measurements show that the rigidity of the amorphous films influences the crystallization process. This surface transformation results in molecular arrangements that are not readily obtained through other means. Cocrystals grown in solution crystallize in a monoclinic centrosymmetric space group, whereas the on-surface halogen-bonded assembly crystallizes into a noncentrosymmetric material with a bulk second-order nonlinear optical response. |
| نوع الوثيقة: |
dataset |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/dataset/Noncovalent_Bonding_Caught_in_Action_From_Amorphous_to_Cocrystalline_Molecular_Thin_Films/16613578 |
| DOI: |
10.1021/acsnano.1c04355.s006 |
| الاتاحة: |
https://doi.org/10.1021/acsnano.1c04355.s006 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.711D0E21 |
| قاعدة البيانات: |
BASE |