Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. 1. Chiroptical Protocol for Absolute Configurational Assignments of Monoalcohols and Primary Monoamines

2001 ◽  
Vol 123 (25) ◽  
pp. 5962-5973 ◽  
Author(s):  
Tibor Kurtán ◽  
Nasri Nesnas ◽  
Yuan-Qiang Li ◽  
Xuefei Huang ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin

Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. 2. Structural Studies of Host−Guest Complexes with Chiral Alcohol and Monoamine Conjugates

2001 ◽  
Vol 123 (25) ◽  
pp. 5974-5982 ◽  
Author(s):  
Tibor Kurtán ◽  
Nasri Nesnas ◽  
Frank E. Koehn ◽  
Yuan-Qiang Li ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Structural Studies ◽  
Chiral Alcohol ◽  
Zinc Porphyrin

ChemInform Abstract: Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. Part 1. Chiroptical Protocol for Absolute Configurational Assignments of Monoalcohols and Primary Monoamines.

ChemInform ◽  
2010 ◽  
Vol 32 (40) ◽  
pp. no-no
Author(s):  
Tibor Kurtan ◽  
Nasri Nesnas ◽  
Yuan-Qiang Li ◽  
Xuefei Huang ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin

Polymethacrylic zinc porphyrin: A new approach to chiral recognition

2011 ◽  
Vol 71 (2) ◽  
pp. 204-209 ◽  
Author(s):  
Luigi Angiolini ◽  
Tiziana Benelli ◽  
Loris Giorgini
Keyword(s):  
Chiral Recognition ◽  
New Approach ◽  
Zinc Porphyrin

Chiral recognition and chiral sensing using zinc porphyrin dimers

Tetrahedron ◽  
2002 ◽  
Vol 58 (14) ◽  
pp. 2803-2811 ◽  
Author(s):  
Takashi Hayashi ◽  
Toshihiro Aya ◽  
Masanori Nonoguchi ◽  
Tadashi Mizutani ◽  
Yoshio Hisaeda ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin ◽  
Chiral Sensing ◽  
Porphyrin Dimers

Chiral Recognition of Amino Acids and Dipeptides by a Water-Soluble Zinc Porphyrin

2004 ◽  
Vol 43 (4) ◽  
pp. 1211-1213 ◽  
Author(s):  
Hiroyasu Imai ◽  
Hiroki Munakata ◽  
Yoshio Uemori ◽  
Naoki Sakura
Keyword(s):  
Amino Acids ◽  
Chiral Recognition ◽  
Water Soluble ◽  
Zinc Porphyrin ◽  
Soluble Zinc

Chiral recognition of amino acid esters by zinc porphyrin derivatives

2001 ◽  
Vol 25 (6) ◽  
pp. 801-806 ◽  
Author(s):  
Chuan Zhong Wang ◽  
Zhi Ang Zhu ◽  
Ying Li ◽  
Yun Ti Chen ◽  
Xin Wen ◽  
...  
Keyword(s):  
Amino Acid ◽  
Chiral Recognition ◽  
Amino Acid Esters ◽  
Zinc Porphyrin ◽  
Porphyrin Derivatives ◽  
Acid Esters

Design and Synthesis of Two-Dimensional Covalent Organic Frameworks with Four-Arm Cores: Prediction of Remarkable Ambipolar Charge-Transport Properties

2019 ◽  
Author(s):  
Simil Thomas ◽  
Hong Li ◽  
Raghunath R. Dasari ◽  
Austin Evans ◽  
William Dichtel ◽  
...  
Keyword(s):  
Charge Transport ◽  
Organic Semiconductors ◽  
Density Functional ◽  
Polymer Networks ◽  
Two Dimensional ◽  
Covalent Organic Frameworks ◽  
X Ray Diffraction ◽  
Zinc Porphyrin ◽  
Design And Synthesis ◽  
Predicted Values

<p>We have considered three two-dimensional (2D) π-conjugated polymer networks (i.e., covalent organic frameworks, COFs) materials based on pyrene, porphyrin, and zinc-porphyrin cores connected <i>via</i> diacetylenic linkers. Their electronic structures, investigated at the density functional theory global-hybrid level, are indicative of valence and conduction bands that have large widths, ranging between 1 and 2 eV. Using a molecular approach to derive the electronic couplings between adjacent core units and the electron-vibration couplings, the three π-conjugated 2D COFs are predicted to have ambipolar charge-transport characteristics with electron and hole mobilities in the range of 65-95 cm<sup>2</sup>V<sup>-1</sup>s<sup>-1</sup>. Such predicted values rank these 2D COFs among the highest-mobility organic semiconductors. In addition, we have synthesized the zinc-porphyrin based 2D COF and carried out structural characterization via powder X-ray diffraction and surface area analysis, which demonstrates the feasability of these electroactive networks.</p>

Enantioselective Recognition of Chiral Guests by the Water-Soluble Chiral Keplerate {Mo132} Spherical Capsule with 30 Inner Lactate Ligands

2019 ◽  
Author(s):  
Nancy Watfa ◽  
Weimin Xuan ◽  
Zoe Sinclair ◽  
Robert Pow ◽  
Yousef Abul-Haija ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chiral Recognition ◽  
Association Constants ◽  
Water Soluble ◽  
Enantioselective Recognition ◽  
H Nmr ◽  
Dosy Nmr ◽  
Spherical Capsule ◽  
Surface Pores ◽  
Guest Chemistry

Investigations of chiral host guest chemistry are important to explore recognition in confined environments. Here, by synthesizing water-soluble chiral porous nanocapsule based on the inorganic metal-oxo Keplerate-type cluster, {Mo<sub>132</sub>} with chiral lactate ligands with the composition [Mo<sub>132</sub>O<sub>372</sub>(H<sub>2</sub>O)<sub>72</sub>(<i>x-</i>Lactate)<sub>30</sub>]<sup>42-</sup> (<i>x</i> = D or L), it was possible to study the interaction with a chiral guest, L/D-carnitine and (<i>R</i>/<i>S</i>)-2-butanol in aqueous solution. The enantioselective recognition was studied by quantitative <sup>1</sup>H NMR and <sup>1</sup>H DOSY NMR which highlighted that the chiral recognition is regulated by two distinct sites. Differences in the association constants (K) of L- and D-carnitine, which, due to their charge, are generally restricted from entering the interior of the host, are observed, indicating that their recognition predominantly occurs at the surface pores of the structure. Conversely, a larger difference in association constants (K<i><sub>S</sub></i>/K<i><sub>R</sub></i> = 3) is observed for recognition within the capsule interior of (<i>R</i>)- and (<i>S</i>)-2-butanol.

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