Tuning the solid-state emission by co-crystallization through σ- and π-hole directed intermolecular interactions

CrystEngComm ◽  
2019 ◽  
Vol 21 (12) ◽  
pp. 1940-1947 ◽  
Author(s):  
Rohit Bhowal ◽  
Suprakash Biswas ◽  
Devi Prasad Adiyeri Saseendran ◽  
Apurba L. Koner ◽  
Deepak Chopra
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Intermolecular Interactions

σ- and π-hole directed intermolecular interaction driven tuning of luminescence.

scholarly journals Convenient Access to Functionalized Non-Symmetrical Atropisomeric 4,4′-Bipyridines

Compounds ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 58-74
Author(s):  
Emmanuel Aubert ◽  
Emmanuel Wenger ◽  
Paola Peluso ◽  
Victor Mamane
Keyword(s):  
Solid State ◽  
Intermolecular Interactions ◽  
Medicinal Chemistry ◽  
Crystal Packing ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Halogen Bonds ◽  
Cross Coupling Reactions ◽  
Cyano Groups ◽  
Post Functionalization

Non-symmetrical chiral 4,4′-bipyridines have recently found interest in organocatalysis and medicinal chemistry. In this regard, the development of efficient methods for their synthesis is highly desirable. Herein, a series of non-symmetrical atropisomeric polyhalogenated 4,4′-bipyridines were prepared and further functionalized by using cross-coupling reactions. The desymmetrization step is based on the N-oxidation of one of the two pyridine rings of the 4,4′-bipyridine skeleton. The main advantage of this methodology is the possible post-functionalization of the pyridine N-oxide, allowing selective introduction of chlorine, bromine or cyano groups in 2- and 2′-postions of the chiral atropisomeric 4,4′-bipyridines. The crystal packing in the solid state of some newly prepared derivatives was analyzed and revealed the importance of halogen bonds in intermolecular interactions.

Two-dimensional asynchronous spectrum with auxiliary cross peaks in probing intermolecular interactions

RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 87739-87749 ◽  
Author(s):  
Xiaopei Li ◽  
Anqi He ◽  
Kun Huang ◽  
Huizhou Liu ◽  
Ying Zhao ◽  
...  
Keyword(s):  
Intermolecular Interaction ◽  
Intermolecular Interactions ◽  
Two Dimensional ◽  
New Approach

A new approach called “asynchronous spectrum with auxiliary peaks (ASAP)” is proposed for generating a 2D asynchronous spectrum to investigate the intermolecular interaction between two solutes (P and Q) dissolved in the same solution.

Substituent and Solvent Effects on Intermolecular Interactions in Crystals of N-Acylhydrazone Derivatives: Single-Crystal X-ray, Solid-State NMR, and Computational Studies

2014 ◽  
Vol 14 (5) ◽  
pp. 2263-2281 ◽  
Author(s):  
Liliana Mazur ◽  
Katarzyna N. Jarzembska ◽  
Radosław Kamiński ◽  
Krzysztof Woźniak ◽  
Edyta Pindelska ◽  
...  
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Intermolecular Interactions ◽  
Solvent Effects ◽  
Solid State Nmr ◽  
Computational Studies ◽  
X Ray

Minute Torsional Reorganization Elicited Large Visible Range Fluorescence Gain in Terphenyl Derived Crystals

2022 ◽  
Author(s):  
Tapan Ghosh ◽  
Madalasa Mondal ◽  
Ratheesh Vijayaraghavan
Keyword(s):  
Solid State ◽  
Intermolecular Interactions ◽  
Organic Semiconductor ◽  
Structural Rearrangement ◽  
Semiconductor Materials ◽  
Visible Range ◽  
Optical Signals ◽  
Electro Optic ◽  
Organic Semiconductor Materials

Understanding the variations in the solid-state optical signals of organic semiconductor materials upon subtle structural rearrangement or intermolecular interactions would help to extract the best performance in their electro-optic devices....

Planar 2-(2-hydroxyphenyl)benzothiazole-based dyes functionalized via triple bonds as exceedingly efficient solid-state fluorophores

CrystEngComm ◽  
2017 ◽  
Vol 19 (35) ◽  
pp. 5178-5183 ◽  
Author(s):  
Yahui Niu ◽  
Longfei Xu ◽  
Qin Wang ◽  
Haoran Wu ◽  
Yanrong Zhang
Keyword(s):  
Solid State ◽  
Intermolecular Interaction ◽  
Triple Bonds

Two planar 2-(2-hydroxyphenyl)benzothiazole-based dyes without sterically bulky groups as exceedingly efficient solid-state fluorophores due to the absence of strong π–π intermolecular interaction.

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