Ultrafast Internal Dynamics of Flexible Hydrogen-Bonded Supramolecular Complexes

2011 ◽  
Vol 115 (7) ◽  
pp. 1210-1221 ◽  
Author(s):  
Martin Olschewski ◽  
Stephan Knop ◽  
Jaane Seehusen ◽  
Jörg Lindner ◽  
Peter Vöhringer
Keyword(s):  
Supramolecular Complexes ◽  
Internal Dynamics ◽  
Hydrogen Bonded

Molecular packing, crystal to crystal transformation, electron transfer behaviour, and photochromic and fluorescent properties of three hydrogen-bonded supramolecular complexes containing benzenecarboxylate donors and viologen acceptors

RSC Advances ◽  
2014 ◽  
Vol 4 (81) ◽  
pp. 42983-42990 ◽  
Author(s):  
Hengjun Chen ◽  
Min Li ◽  
Guiming Zheng ◽  
Yifang Wang ◽  
Yang Song ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Molecular Packing ◽  
Supramolecular Complexes ◽  
Supramolecular Systems ◽  
Fluorescent Properties ◽  
Crystal Transformation ◽  
Hydrogen Bonded

Structures of three D–A supramolecular systems and their photoresponsive characteristics are investigated.

Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils

2018 ◽  
Vol 353 ◽  
pp. 34-45 ◽  
Author(s):  
Marina V. Fomina ◽  
Alexander S. Nikiforov ◽  
Vitaly G. Avakyan ◽  
Artem I. Vedernikov ◽  
Nikolai A. Kurchavov ◽  
...  
Keyword(s):  
Self Assembly ◽  
Spectral Properties ◽  
Supramolecular Complexes ◽  
Hydrogen Bonded

Star-shaped triphenylene discotic liquid crystalline oligomers and their hydrogen-bonded supramolecular complexes with simple acids

2015 ◽  
Vol 3 (44) ◽  
pp. 11735-11746 ◽  
Author(s):  
Ke-Qing Zhao ◽  
Xiao-Yan Bai ◽  
Bo Xiao ◽  
Yue Gao ◽  
Ping Hu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Liquid Crystalline ◽  
Supramolecular Complexes ◽  
Discotic Mesogens ◽  
Hydrogen Bonded

The synthesis and self-assembly properties of four novel star-shaped oligomers containing triphenylene discotic mesogens are reported.

Intramolecular competition between n-pair and π-pair hydrogen bonding: Microwave spectrum and internal dynamics of the pyridine–acetylene hydrogen-bonded complex

2015 ◽  
Vol 143 (10) ◽  
pp. 104309 ◽  
Author(s):  
Rebecca B. Mackenzie ◽  
Christopher T. Dewberry ◽  
Emma Coulston ◽  
George C. Cole ◽  
Anthony C. Legon ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Microwave Spectrum ◽  
Internal Dynamics ◽  
Hydrogen Bonded

Dynamiclly Functional Materials Based on Hydrogen-Bonded Liquid Crystals

2014 ◽  
Vol 926-930 ◽  
pp. 68-71
Author(s):  
Zhi Lian Liu ◽  
Xiao Hui Li ◽  
Zhen Ning Yu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Hydrogen Bonds ◽  
Functional Materials ◽  
Optical Microscope ◽  
Supramolecular Complexes ◽  
Pyridine Derivative ◽  
Crystal Texture ◽  
Crystal Properties ◽  
Hydrogen Bonded

A new series of supramolecular hydrogen-bonded liquid cryatals complexes were synthesized based on pyridine derivative and 4-n-alkoxybenzoic acids. The formation of hydrogen bonds was verified by infrared spectra. The thermal behavior of supramolecular liquid crystals was studied using differential scanning calorimeter (DSC). The liquid crystal texture was revealed with polarizing optical microscope (POM). It demonstrats that all supramolecular complexes have good liquid crystal properties.

scholarly journals Phase Behavior and DFT Calculations of Laterally Methyl Supramolecular Hydrogen-Bonding Complexes

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 133 ◽  
Author(s):  
Hoda Ahmed ◽  
Mohamed Hagar ◽  
Omaima Alhaddad
Keyword(s):  
Differential Scanning Calorimetry ◽  
High Stability ◽  
Polarized Light ◽  
Supramolecular Complexes ◽  
Scanning Calorimetry ◽  
Methyl Group ◽  
Smectic C ◽  
Computational Calculations ◽  
Nematic Phases ◽  
Hydrogen Bonded

Four new series of laterally methyl-substituted hydrogen-bonded supramolecular complexes were prepared. The prepared complexes were thermally investigated by differential scanning calorimetry (DSC) and phases identified by polarized light microscopy (PLM). Supramolecular hydrogen-bonded complexes formed from a 1:1 mixture of any two derivatives, bearing different alkoxy chains, of 4-alkoxyphenylazobenzoic acid and 4-(2-(pyridin-4-yl)diazenyl-(2-(or 3-)methylphenyl) 4-alkoxybenzoate. The investigated 1:1 mixture made by introducing a lateral methyl group by different spatial orientation angles into pyridine-based components. All new complexes were confirmed by Fourier-transform infrared spectroscopy (FTIR) and computational calculations used to study their stabilities. It is found that the prepared complexes are dimorphic, exhibiting smectic C and enhanced nematic phases. A comparison was made between the new series and previously investigated simpler complexes, revealed that the incorporation of the phenylazo group elongate the mesogenic part and hence broad nematic phases were obtained with high stability.

Sign in / Sign up

Export Citation Format

Share Document