Synthesis of metallophthalocyanines with four oxy-2,2-diphenylacetic acid substituents and their structural and electronic properties

2016 ◽  
Vol 22 (5) ◽  
Author(s):  
Sakar Mübarak Abdalrazaq ◽  
Beyza Cabir ◽  
Selçuk Gümüş ◽  
Mehmet Salih Ağırtaş
Keyword(s):  
Electronic Properties ◽  
Synthesis And Characterization ◽  
Cobalt Phthalocyanine ◽  
Diphenylacetic Acid ◽  
Structural And Electronic Properties

AbstractThe synthesis and characterization of new copper-, magnesium- and cobalt- phthalocyanine complexes are reported. It appears that these complexes are not aggregated in THF in the concentration range of 1×10

Synthesis and characterization of μ-nitrido, μ-carbido and μ-oxo dimers of iron octapropylporphyrazine

2015 ◽  
Vol 44 (5) ◽  
pp. 2240-2251 ◽  
Author(s):  
Cédric Colomban ◽  
Evgeny V. Kudrik ◽  
Dmitry V. Tyurin ◽  
Florian Albrieux ◽  
Sergei E. Nefedov ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Macrocyclic Complexes ◽  
Single Atom ◽  
Synthesis And Characterization ◽  
Structural And Electronic Properties

The structural and electronic properties of single-atom bridged diiron macrocyclic complexes are determined by the nature of the bridge.

scholarly journals Synthesis and Optoelectronic Properties of Iptycene–Naphthazarin Dyes

Synlett ◽  
2018 ◽  
Vol 30 (01) ◽  
pp. 54-58 ◽  
Author(s):  
Timothy Swager ◽  
Cagatay Dengiz ◽  
You-Chi Wu
Keyword(s):  
Single Crystal ◽  
Electronic Properties ◽  
Diels Alder ◽  
Optoelectronic Properties ◽  
Synthesis And Characterization ◽  
Nmr Analysis ◽  
X Ray ◽  
Vis Spectroscopy

We report the synthesis and characterization of iptycene–naphthazarin dyes by using a sequential Diels–Alder approach. The tautomerization of naphthazarin was used as the key step in the synthesis, with structures confirmed by single-crystal X-ray and NMR analysis. The systematic trends in electronic properties were investigated by UV/Vis spectroscopy. BF2 complexes of the dyes were prepared by reaction with BF3·OEt2 in CH2Cl2.

scholarly journals Bottom-up Fabrication and Atomic-scale Characterization of Triply-linked, Laterally π-Extended Porphyrin Nanotapes

2021 ◽  
Author(s):  
Qiang Sun ◽  
Luis M. Mateos ◽  
Roberto Robles ◽  
Nicolas Lorente ◽  
Pascal Ruffieux ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Molecular Wires ◽  
Atomic Scale ◽  
Functional Theory ◽  
Structural And Electronic Properties ◽  
Scale Characterization ◽  
Low Solubility

<p>Porphyrin nanotapes (Por NTs) have attracted vast interest as potential molecular wires thanks to their exceptional electronic properties. Recently, Por NTs have been synthesized by solution-based methods, demonstrating high versatility and great potential for technological applications. However, their synthesis is tedious and their characterization limited by low solubility and stability. Here, we report the first example of meso-meso triply-fused Por NTs, which are prepared from a readily available Por precursor through a two-step synthesis on Au(111). The structural and electronic properties of individual Por NTs are addressed, both on Au(111) and on a thin insulating NaCl layer, by high-resolution scanning probe microscopy/spectroscopy complemented by density functional theory calculations.<br></p>

scholarly journals Computational Study of some Double Headed Acyclo-C-Nucleosides

2015 ◽  
Vol 61 ◽  
pp. 1-11
Author(s):  
Sarah Amara ◽  
Noureddine Tchouar ◽  
Salah Belaidi
Keyword(s):  
Electronic Properties ◽  
Ground State ◽  
Density Functional ◽  
Computational Study ◽  
Experimental Studies ◽  
Functional Theory ◽  
Hartree Fock ◽  
Structural And Electronic Properties ◽  
Semi Empirical

In the present paper we have a focus in a study of theoretical characterization of three double headed acyclo-C-nucleosides, which are a recent target of experimental studies. The structural and electronic properties of double headed acyclo-C-nucleosides, 1,4-bis (3-mercapto-1H-1,2,4-triazol-5-yl) butane-1,2,3,4-tetrol, 1,4-bis (4-amino-5-mercapto-4H-1,2,4-triazol-3-yl) butane-1,2,3,4-tetrol and 5,5'-(1,2,3,4-tetrahydroxybutane-1,4-diyl) bis (1,3,4-oxadiazole-2(3H)-thione), have been investigated theoretically by performing semi-empirical molecular orbital, ab initio Hartree-Fock (HF) and Density Functional Theory (DFT) calculations. Geometries of the three molecules are optimized at the level of Austin Model 1 (AM1). The electronic properties and relative energies of the molecules have been calculated by HF and DFT in the ground state.

A Heptacyclic Heptacycle: A Doubly Naphtho[b]thiophene Fused Borepin

Synlett ◽  
2018 ◽  
Vol 29 (19) ◽  
pp. 2499-2502 ◽  
Author(s):  
John Tovar ◽  
Reid Messersmith ◽  
Maxime Siegler
Keyword(s):  
Electronic Properties ◽  
Synthesis And Characterization ◽  
Disubstituted Alkyne

The synthesis and characterization of a doubly naphtho[b]thiophene fused borepin is reported herein, and the properties are compared to smaller benzo[b]thiophene and thiophene fused borepins. The synthesis involved the preparation of a symmetrical disubstituted alkyne that was reduced to a Z-olefin. This was followed by borepin formation from the alkene directly by way of thieno dilithiation. The electronic properties are consistent with extended benzannulation of the smaller analogues, and the enhancement of the brickwork type stacking is apparent as planar aromatic wings are extended from the central borepin core.

Green synthesis and characterization of crystalline zinc phthalocyanine and cobalt phthalocyanine prisms by a simple solvothermal route

CrystEngComm ◽  
2018 ◽  
Vol 20 (19) ◽  
pp. 2749-2758 ◽  
Author(s):  
Dapeng Li ◽  
Suxiang Ge ◽  
Tianci Yuan ◽  
Jingjing Gong ◽  
Baojun Huang ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Zinc Phthalocyanine ◽  
Synthesis And Characterization ◽  
Cobalt Phthalocyanine ◽  
Solvothermal Route ◽  
One Step

Solvothermal growth of ZnPc and CoPc crystals in one step.

Characterization of The Electronic and Structural Properties of Semiconductors by Scanning Transmission Electronmicroscopy (Stem)

1980 ◽  
Vol 38 ◽  
pp. 286-289
Author(s):  
P. M. Petroff
Keyword(s):  
Electronic Properties ◽  
Radiative Properties ◽  
High Electron ◽  
Simultaneous Observation ◽  
Structural And Electronic Properties ◽  
Scanning Transmission ◽  
Low Energy Electrons ◽  
Electronic And Structural Properties ◽  
Transmission Electronmicroscopy

The simultaneous probing of the structural and electronic properties of a semiconductor on a very localized scale with the medium energy (50 ≤ Eo ≤ 200 KeV) (STEM) instruments offers new possibilities for understanding the properties of defects and interfaces. The advantages of working with thin films and high electron beam energies as opposed to bulk samples and low energy electrons are sizable since they bring: a) an improved spatial resolution and sensitivity in the analysis of the electronic properties of the probed volume and b) a direct and simultaneous observation of the structure and chemistry in the probed area making simple the comparison between the two types of analysis. Selected examples are given to illustrate the advantages and limitations of the STEM techniques implemented for probing the recombination and radiative properties of defects.

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