Donor–acceptor, ferrocenyl substituted BODIPYs with marvelous supramolecular interactions

2013 ◽  
Vol 42 (5) ◽  
pp. 1512-1518 ◽  
Author(s):  
Bhausaheb Dhokale ◽  
Prabhat Gautam ◽  
Shaikh M. Mobin ◽  
Rajneesh Misra
Keyword(s):  
Supramolecular Interactions ◽  
Donor Acceptor

Phthalocyanine-corannulene conjugates: Synthesis, complexation studies with a pyridyl-functionalized C60 fullerene, and photophysical properties

2020 ◽  
Vol 24 (01n03) ◽  
pp. 410-415 ◽  
Author(s):  
Juan A. Suanzes ◽  
Sumit Chaurasia ◽  
Rafael M. Krick Calderon ◽  
Dirk M. Guldi ◽  
Giovanni Bottari ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Supramolecular Interactions ◽  
C60 Fullerene ◽  
Time Resolved ◽  
Complexation Studies ◽  
Donor Acceptor ◽  
Photophysical Studies ◽  
Covalently Linked ◽  
Photoinduced Charge

We report here the synthesis and characterization of some novel Zn(II)phthalocyanine (Pc)-corannulene conjugates and their complexation ability towards a pyridyl-functionalized C[Formula: see text] fullerene through metal-ligand supramolecular interactions. Steady-state and time-resolved photophysical studies carried out on these electron donor–acceptor (D–A) Zn(II)Pc-corannulene/C[Formula: see text] ensembles indicate the formation of photogenerated charge-separated species. Interestingly, a stabilization of the photoinduced charge-separated state is observed in the case of the D–A supramolecular complexes comprising the corannulene-substituted Zn(II)Pcs when compared to their non-corannulene functionalized Zn(II)Pc analogues. We rationalize this stabilizing effect of the charge-separated state exerted by the corannulene as a result of the increased [Formula: see text]-extension and augmented hydrophobicity of the Zn(II)Pc core by the covalently-linked polyaromatic hydrocarbon (PAH) fragment.

Supramolecular organization of phthalocyanines: from solution to surface

2009 ◽  
Vol 13 (04n05) ◽  
pp. 471-480 ◽  
Author(s):  
M. Victoria Martínez-Díaz ◽  
Giovanni Bottari
Keyword(s):  
Photophysical Properties ◽  
Building Blocks ◽  
Supramolecular Interactions ◽  
Supramolecular Organization ◽  
Supramolecular Systems ◽  
Ligand Interactions ◽  
Donor Acceptor ◽  
Interesting Class ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Phthalocyanines are an interesting class of aromatic macrocycles which possess exciting electrical, redox and photophysical properties that make them ideal building blocks for applications in different technological fields. However, the incorporation of phthalocyanines into devices is often tied to the possibility of organizing these macrocycles into arrays using supramolecular interactions. To date, several supramolecular motifs such as hydrogen-bonding, donor-acceptor or metal-ligand interactions have been used to promote the phthalocyanines' organization in solution. Furthermore, such weak, non-covalent interactions have also been widely employed to foster the organization of these macrocycles in condensed phases such as liquid-crystals or thin films. This micro-review provides a brief overview of the contribution made by some research groups in Spain towards the preparation of organized phthalocyanine-based supramolecular systems.

scholarly journals Polymer-mediated ternary supramolecular interactions for sensitive detection of peptides

The Analyst ◽  
2017 ◽  
Vol 142 (1) ◽  
pp. 118-122 ◽  
Author(s):  
Mahalia A. C. Serrano ◽  
Huan He ◽  
Bo Zhao ◽  
Rajasekhar R. Ramireddy ◽  
Richard W. Vachet ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Sensitive Detection ◽  
Supramolecular Interactions ◽  
Supramolecular System ◽  
Donor Acceptor

A combination of donor–acceptor and electrostatic interactions in a three-component supramolecular system has been shown to form the basis for selective and sensitive detection of peptides.

Spectral investigations of meso-tetraalkylporphyrin-fullerene host–guest complexes

2015 ◽  
Vol 19 (09) ◽  
pp. 997-1006 ◽  
Author(s):  
Nitika Grover ◽  
Pinki Rathi ◽  
Muniappan Sankar
Keyword(s):  
Alkyl Chain ◽  
Supporting Electrolyte ◽  
Supramolecular Interactions ◽  
Spectroscopic Techniques ◽  
X Ray ◽  
Alkyl Chains ◽  
Oxidation Potentials ◽  
Donor Acceptor ◽  
Electrochemical Redox ◽  
Self Assembled

Meso-tetraalkylporphyrins and their Zn(II) complexes were synthesized and characterized by various spectroscopic techniques. Single crystal X-ray structure of meso-tetrapropylporphyrin (3) revealed the orientation of alkyl chains and planar conformation of porphyrin macrocycle. Spectroscopic, photophysical and electrochemical redox properties of self-assembled donor–acceptor dyads formed by meso-tetraalkylporphyrins and fullerene C 60 were investigated. These studies revealed 1:1 supramolecular dyad formation between the electron donor porphyrins and the electron acceptor, fullerene entities. The determined association constants (K) follow the order: H2TMeP (1) > H2TEtP (2) > H2TPrP (3) > H2THexP > H2TPP . The effect of alkyl chain length on porphyrin-fullerene complexation was investigated. The redox behavior of self-assembled dyads was investigated in PhCN containing 0.1 M TBAPF6 as supporting electrolyte. The oxidation potentials of dyads are positively shifted (20–100 mV) as compared to corresponding meso-tetraalkylporphyrins indicating the supramolecular interactions between the constituents in the ground state. The geometric and electronic structure of 1: C 60 was probed by DFT calculations which suggested the possibility of charge transfer from meso-tetraalkylporphyrin to fullerene C 60.

Evidence of a donor-acceptor type transition in CuGaSe2

1980 ◽  
Vol 41 (7) ◽  
pp. 707-712 ◽  
Author(s):  
A. Poure ◽  
G. Aguero ◽  
G. Masse ◽  
J.P. Aicardi
Keyword(s):  
Type Transition ◽  
Donor Acceptor

Photoactive donor-acceptor thin films as prospective materials for evaporated bulk heterojunctions of molecular semiconductors

2008 ◽  
Author(s):  
Derck Schlettwein ◽  
Robin Knecht ◽  
Dominik Klaus ◽  
Christopher Keil ◽  
Günter Schnurpfeil
Keyword(s):  
Thin Films ◽  
Bulk Heterojunctions ◽  
Donor Acceptor ◽  
Molecular Semiconductors
Sign in / Sign up

Export Citation Format

Share Document