Hand-twistable plastically deformable crystals of a rigid small organic molecule

2018 ◽  
Vol 54 (24) ◽  
pp. 2994-2997 ◽  
Author(s):  
Lukman O. Alimi ◽  
Prem Lama ◽  
Vincent J. Smith ◽  
Leonard J. Barbour
Keyword(s):  
Organic Molecule ◽  
Plastic Bending ◽  
Small Organic Molecule ◽  
Rigid Molecule ◽  
Rare Situation ◽  
Bending Behaviour

The crystals of the small rigid molecule 4-bromobenzonitrile exhibit highly flexible plastic bending behaviour that occurs on two perpendicular faces of the crystal, a rare situation, leading to the formation of helical/twisted and curled crystals.

scholarly journals Plausibly Deniable Chemical Encryption: Hiding a Molecule in a Haystack

2020 ◽  
Author(s):  
Wojciech Nogaś
Keyword(s):  
Chemical Analysis ◽  
Organic Molecule ◽  
Encryption Algorithm ◽  
Proof Of Concept ◽  
Small Organic Molecule ◽  
The Cost

We propose an outline of plausibly deniable chemical encryption algorithm, a technique aimed at increasing the cost of a small organic molecule identification in a sample by means of chemical analysis through mixing it with a rationally designed randomized mixture of analytical interferents, in a remote analogy to other domains of cryptography. The algorithm is then applied in a proof-of-concept demonstration example.

Dissolution-enhanced emission of 1,3,6,8-Tetrakis(p-benzoic acid)pyrene for selectively detecting protamine and “on-to-on” heparin detection in water

2021 ◽  
Author(s):  
Hongtao Li ◽  
Yuting Zhang ◽  
Yan Huang ◽  
Dapeng Cao ◽  
Shitao Wang
Keyword(s):  
Detection Limit ◽  
Benzoic Acid ◽  
Organic Molecule ◽  
Basic Protein ◽  
Fluorescence Probe ◽  
Small Organic Molecule ◽  
Turn On ◽  
Low Detection Limit

We developed a small organic molecule, the 1,3,6,8-Tetrakis(pbenzoic acid)pyrene (TBAPy) as a facile turn-on fluorescence probe for selectively detecting the basic protein protamine in water with a low detection limit...

scholarly journals Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

2020 ◽  
Vol 10 (17) ◽  
pp. 5743
Author(s):  
Shabaz Alam ◽  
M. Shaheer Akhtar ◽  
Abdullah ◽  
Eun-Bi Kim ◽  
Hyung-Shik Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Small Organic Molecule ◽  
Donor Material

A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene donor units, connected through a thiophene π-spacer. The presence of a dimethoxy vinylbenzene unit and π-spacer in DVB-T-ID significantly improved the absorption behavior by displaying maximum absorbance at ~515 nm, and the reasonable band gap was estimated as ~2.06 eV. The electronic properties revealed that DVB-T-ID SOMs exhibited promising HOMO (−5.32 eV) and LUMO (−3.26 eV). The synthesized DVB-T-ID SOM was utilized as donor material for fabricating solution-processed bulk heterojunction organic solar cells (BHJ-OSCs) and showed a reasonable power conversion efficiency (PCE) of ~3.1% with DVB-T-ID:PC61BM (1:2, w/w) active layer. The outcome of this work clearly reflects that synthesized DVB-T-ID based on 1,3-indanedione units is a promising absorber (donor) material for BHJ-OSCs.

Theoretical study of phosphorene multilayers: optical properties and small organic molecule physisorption

2017 ◽  
Vol 53 (7) ◽  
pp. 5103-5113 ◽  
Author(s):  
Diego A. Ospina ◽  
Carlos A. Duque ◽  
Miguel E. Mora-Ramos ◽  
Julian D. Correa
Keyword(s):  
Optical Properties ◽  
Organic Molecule ◽  
Theoretical Study ◽  
Small Organic Molecule

Small Organic Molecule Based Photoelectrodes for Efficient Photoelectrochemical Cathodic Protection

2020 ◽  
Vol 2 (12) ◽  
pp. 4012-4022
Author(s):  
Xiaojie Liu ◽  
Xin Jing ◽  
Yong Zhao ◽  
Wei Wang ◽  
Liangmin Yu ◽  
...  
Keyword(s):  
Cathodic Protection ◽  
Organic Molecule ◽  
Small Organic Molecule

scholarly journals Centrifugation Based Automated Synthesis Technologies

2003 ◽  
Vol 8 (3) ◽  
pp. 30-35 ◽  
Author(s):  
Michal Lebl
Keyword(s):  
Organic Molecule ◽  
Solid Phase ◽  
Automated Synthesis ◽  
Production Facility ◽  
Powerful Method ◽  
Small Organic Molecule ◽  
Solid Liquid ◽  
Solid Liquid Separation ◽  
Inclusion Volume ◽  
Parallel Technique

Centrifugation is a powerful method for solid-liquid separation. It can be applied in numerous ways to simplify solid phase synthetic procedures. At the same time, centrifugation is the only totally parallel technique which can be scaled up for processing volume or number of simultaneously run reactions, without the limitation of overpressure or vacuum-driven filtration-based systems. We have developed synthesizers based on the power of centrifugation — peptide and small organic molecule synthesizers utilizing cotton as the synthetic substrate and inclusion volume chemistry, synthesizers for automation of “tea bag” synthesis, and synthesizers based on “tilted plate centrifugation”. The last technique was employed in an oligonucleotide production facility with the capacity of more than 10 million compounds per year.

scholarly journals Large Enhancement and Tunable Band Gap in Silicene by Small Organic Molecule Adsorption

2014 ◽  
Vol 118 (40) ◽  
pp. 23361-23367 ◽  
Author(s):  
Thaneshwor P. Kaloni ◽  
Georg Schreckenbach ◽  
Michael S. Freund
Keyword(s):  
Band Gap ◽  
Organic Molecule ◽  
Small Organic Molecule ◽  
Molecule Adsorption ◽  
Large Enhancement ◽  
Tunable Band Gap
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