Design and synthesis of Tröger's base ditopic receptors: host–guest interactions, a combined theoretical and experimental study

2015 ◽  
Vol 13 (4) ◽  
pp. 1141-1149 ◽  
Author(s):  
Manda Bhaskar Reddy ◽  
Myadaraboina Shailaja ◽  
Alla Manjula ◽  
Joseph Richard Premkumar ◽  
Garikapati Narahari Sastry ◽  
...  
Keyword(s):  
Experimental Study ◽  
Design And Synthesis ◽  
Ditopic Receptors ◽  
Troger's Base

The host–guest interaction between flexible ditopic receptors and bisammonium ion has been investigated experimentally and computationally. The conformation folding of guest bisammonium ion molecules leads to the oscillation of the host–guest interaction.

scholarly journals Design and Synthesis of a Novel Banana-Shaped Functional Molecule via Double Cross-Coupling

Molecules ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 698 ◽  
Author(s):  
Bingchuan Yang ◽  
Guodong Shen ◽  
Xianqiang Huang ◽  
Rutao Liu
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Design And Synthesis ◽  
Cross Coupling Reaction ◽  
Troger's Base ◽  
Ft Ir ◽  
Ft Ir Spectroscopy ◽  
Double Cross

A novel banana-shaped molecule using 2,8-Dimethyl-6H,12H-5,11-methanodibenzo [b,f] [1,5]diazocine (Tröger’s base) as bent-core was synthesized via double Carbon-Carbon cross-coupling reaction. The double Sonogashira cross-coupling reaction was optimized by using Pd(PPh3)2Cl2 as catalyst, CuI as cocatalyst and diisopropylamine as base in place of triethylamine. The structure of this compound was confirmed by 1H-NMR, 13C-NMR, Fourier transform infrared (FT-IR) spectroscopy and mass spectrometry.

Design and synthesis of a multifunctional porous N-rich polymer containing s-triazine and Tröger's base for CO2 adsorption, catalysis and sensing

2018 ◽  
Vol 9 (19) ◽  
pp. 2643-2649 ◽  
Author(s):  
Yuanzheng Cui ◽  
Jianfeng Du ◽  
Yuchuan Liu ◽  
Yue Yu ◽  
Shun Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co2 Adsorption ◽  
Knoevenagel Condensation ◽  
Selective Adsorption ◽  
Design And Synthesis ◽  
Troger's Base ◽  
Good Catalytic Activity

A multifunctional porous N-rich polymer containing s-triazine and Tröger's base was synthesized. It shows selective adsorption for CO2, colorimetric performance for HCl and good catalytic activity in the Knoevenagel condensation.

scholarly journals Design and Synthesis of Imidazolium-Mediated Tröger’s Base-Containing Ionene Polymers for Advanced CO2 Separation Membranes

ACS Omega ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 3439-3448 ◽  
Author(s):  
Irshad Kammakakam ◽  
Kathryn E. O’Harra ◽  
Jason E. Bara ◽  
Enrique M. Jackson
Keyword(s):  
Co2 Separation ◽  
Design And Synthesis ◽  
Separation Membranes ◽  
Troger's Base

Photophysical characterisation of Tröger's base molecular scaffolds: a combined theoretical and experimental study

2015 ◽  
Vol 39 (9) ◽  
pp. 6987-6996 ◽  
Author(s):  
Débora Muller Pimentel Aroche ◽  
Josene Maria Toldo ◽  
Rodrigo Roceti Descalzo ◽  
Paulo Fernando Bruno Gonçalves ◽  
Fabiano Severo Rodembusch
Keyword(s):  
Experimental Study ◽  
Dft Calculations ◽  
Excited States ◽  
Molecular Scaffolds ◽  
Td Dft ◽  
Troger's Base

The photophysics of Tröger's base in the ground and excited states was performed by comparing experimental and theoretical properties predicted using TD-DFT calculations.

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

Prostatic Acid Phosphatase (PAP) Differentiated Ultracytochemically from Lysosomal Acid Phosphate in the Rat with a PAP/Specific Substrate, Phosphorylcholine

1975 ◽  
Vol 33 ◽  
pp. 450-451
Author(s):  
W. Allen Shannon ◽  
José A. Serrano ◽  
Hannah L. Wasserkrug ◽  
Anna A. Serrano ◽  
Arnold M. Seligman
Keyword(s):  
Acid Phosphatase ◽  
Phosphate Buffer ◽  
Prostatic Carcinoma ◽  
Prostatic Acid Phosphatase ◽  
Chemotherapeutic Agents ◽  
Specific Substrate ◽  
Acid Phosphate ◽  
Lysosomal Acid ◽  
Design And Synthesis ◽  
New Chemotherapeutic Agents

During the design and synthesis of new chemotherapeutic agents for prostatic carcinoma based on phosphorylated agents which might be enzyme-activated to cytotoxicity, phosphorylcholine, [(CH3)3+NCH2CH2OPO3Ca]Cl-, has been indicated to be a very specific substrate for prostatic acid phosphatase (PAP). This phenomenon has led to the development of specific histochemical and ultracytochemical methods for PAP using modifications of the Gomori lead method for acid phosphatase. Comparative histochemical results in prostate and kidney of the rat have been published earlier with phosphorylcholine (PC) and β-glycerophosphate (βGP). We now report the ultracytochemical results.Minced tissues were fixed in 3% glutaraldehyde-0.1 M phosphate buffered (pH 7.4) for 1.5 hr and rinsed overnight in several changes of 0.05 M phosphate buffer (pH 7.0) containing 7.5% sucrose. Tissues were incubated 30 min to 2 hr in Gomori acid phosphatase medium (2) containing 0.1 M substrate, either PC or βGP.

Tailoring microstructures of materials through biomimetics

1993 ◽  
Vol 51 ◽  
pp. 500-501
Author(s):  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Chemical Properties ◽  
Design And Synthesis ◽  
Structure Sensitive ◽  
Macro Scale ◽  
Methods Of Synthesis ◽  
Successive Level ◽  
Engineering Materials ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Synthesis Of Materials

Biomimetics involves investigation of structure, function, and methods of synthesis of biological composite materials. The goal is to apply this information to the design and synthesis of materials for engineering applications.Properties of engineering materials are structure sensitive through the whole spectrum of dimensions from nanometer to macro scale. The goal in designing and processing of technological materials, therefore, is to control microstructural evolution at each of these dimensions so as to achieve predictable physical and chemical properties. Control at each successive level of dimension, however, is a major challenge as is the retention of integrity between successive levels. Engineering materials are rarely fabricated to achieve more than a few of the desired properties and the synthesis techniques usually involve high temperature or low pressure conditions that are energy inefficient and environmentally damaging.In contrast to human-made materials, organisms synthesize composites whose intricate structures are more controlled at each scale and hierarchical order.

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