Intramolecular Axial Ligation of Zinc Porphyrin Cores with Triazole Links within Dendrimers

2009 ◽  
Vol 15 (11) ◽  
pp. 2617-2624 ◽  
Author(s):  
Mutsumi Kimura ◽  
Yasuhiro Nakano ◽  
Naoya Adachi ◽  
Yoko Tatewaki ◽  
Hirofusa Shirai ◽  
...  
Keyword(s):  
Zinc Porphyrin ◽  
Axial Ligation

Charge Stabilization in High-Potential Zinc Porphyrin-Fullerene via Axial Ligation of Tetrathiafulvalene

2018 ◽  
Vol 122 (25) ◽  
pp. 13636-13647 ◽  
Author(s):  
Christopher O. Obondi ◽  
Gary N. Lim ◽  
Youngwoo Jang ◽  
Prajay Patel ◽  
Angela K. Wilson ◽  
...  
Keyword(s):  
High Potential ◽  
Zinc Porphyrin ◽  
Axial Ligation ◽  
Charge Stabilization

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>

scholarly journals Anion-enhanced excited state charge separation in a spiro-locked N-heterocycle-fused push-pull zinc porphyrin

2021 ◽  
Author(s):  
Mandeep K. Chahal ◽  
Anuradha Liyanage ◽  
Ajyal Z. Alsaleh ◽  
Paul A. Karr ◽  
Jonathan P. Hill ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Charge Separation ◽  
Charge Transfer Complex ◽  
Zinc Porphyrin ◽  
New Type ◽  
State Charge

A new type of push–pull charge transfer complex, viz., a spiro-locked N-heterocycle-fused zinc porphyrin, ZnP-SQ, is shown to undergo excited state charge separation, which is enhanced by axial F− binding to the Zn center.

Interactions of water-soluble zinc porphyrin with amino acids

1988 ◽  
Vol 153 (4) ◽  
pp. 199-200 ◽  
Author(s):  
E. Mikros ◽  
A. Gaudemer ◽  
R. Pasternack
Keyword(s):  
Amino Acids ◽  
Water Soluble ◽  
Zinc Porphyrin ◽  
Soluble Zinc

scholarly journals Axial Ligation and Stoichiometry of Heme Centers in Adrenal Cytochromeb561†

Biochemistry ◽  
2007 ◽  
Vol 46 (29) ◽  
pp. 8647-8658 ◽  
Author(s):  
Yury Kamensky ◽  
Wen Liu ◽  
Ah-Lim Tsai ◽  
Richard J. Kulmacz ◽  
Graham Palmer
Keyword(s):  
Axial Ligation

Meso tetrakis ortho-, meta-, and para-N-alkylpyridiniopor-phyrins: kinetics of copper(II) and zinc(II) incorporation and zinc porphyrin demetalation

2003 ◽  
Vol 07 (03) ◽  
pp. 139-146 ◽  
Author(s):  
Peter Hambright ◽  
Ines Batinić-Haberle ◽  
Ivan Spasojević
Keyword(s):  
Aqueous Solution ◽  
Ionic Strength ◽  
Effective Charge ◽  
Methyl Ethyl ◽  
Ionic Strength Dependence ◽  
Zinc Porphyrin ◽  
Cationic Porphyrin ◽  
Strength Dependence ◽  
Acid Catalyzed ◽  
Kinetics Of

The relative reactivities of the tetrakis( N -alkylpyridinium- X - yl )-porphyrins where X = 4 (alkyl = methyl, ethyl, n -propyl) , X = 3 (methyl) , and X = 2 (methyl, ethyl, n -propyl, n -butyl, n -hexyl, n -octyl) were studied in aqueous solution. From the ionic strength dependence of the metalation rate constants, the effective charge of a particular cationic porphyrin was usually larger when copper(II) rather than zinc(II) was the reactant. The kinetics of ZnOH + incorporation and the acid catalyzed removal of zinc from the porphyrins in 1.0 M HCl were also studied. In general, the more basic 4- (para-) and 3- (meta-) isomers were the most reactive, followed by the less basic 2- (ortho-) methyl to n -butyl derivatives, with the lipophilic ortho n -hexyl and n -octyl porphyrins the least reactive.

A Copper(II) Ion-Selective On−Off-Type Fluoroionophore Based on Zinc Porphyrin−Dipyridylamino

2007 ◽  
Vol 46 (19) ◽  
pp. 7749-7755 ◽  
Author(s):  
Yan-Qin Weng ◽  
Fan Yue ◽  
Yong-Rui Zhong ◽  
Bao-Hui Ye
Keyword(s):  
Zinc Porphyrin
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