Silicon-Heteroaromatic [FeFe] Hydrogenase Model Complexes: Insight into Protonation, Electrochemical Properties, and Molecular Structures

2015 ◽  
Vol 21 (13) ◽  
pp. 5061-5073 ◽  
Author(s):  
Roman Goy ◽  
Luca Bertini ◽  
Helmar Görls ◽  
Luca De Gioia ◽  
Jean Talarmin ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Molecular Structures ◽  
Model Complexes ◽  
Insight Into

Toward a Tunable Synthetic [FeFe]-Hydrogenase H-Cluster Mimic Mediated by Perylene Monoimide Model Complexes: Insight into Molecular Structures and Electrochemical Characteristics

2018 ◽  
Vol 37 (19) ◽  
pp. 3278-3285 ◽  
Author(s):  
Hassan Abul-Futouh ◽  
Artem Skabeev ◽  
Davide Botteri ◽  
Yulian Zagranyarski ◽  
Helmar Görls ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Electrochemical Characteristics ◽  
Model Complexes ◽  
Insight Into

scholarly journals Discoloration of Historical Plastic Objects: New Insight into the Degradation of β-Naphthol Pigment Lakes

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2278
Author(s):  
Anna Micheluz ◽  
Eva Mariasole Angelin ◽  
João Almeida Lopes ◽  
Maria João Melo ◽  
Marisa Pamplona
Keyword(s):  
Light Exposure ◽  
Molecular Structures ◽  
Conservation Science ◽  
Organic Pigment ◽  
Organic Pigments ◽  
Before And After ◽  
The Individual ◽  
Determining Factor ◽  
Insight Into ◽  
Historical Samples

Light is a determining factor in the discoloration of plastics, and photodegradation processes can affect the molecular structures of both the polymer and colorants. Limited studies focused on the discoloration of heritage plastics in conservation science. This work investigated the discoloration of red historical polyethylene (PE) objects colored with PR 48:2 and PR 53:1. High-density and low-density PE reference polymers, neat pigment powders, and historical samples were assessed before and after accelerated photoaging. The applied methodology provided insight into the individual light-susceptibility of polyethylenes, organic pigment lakes, and their combined effect in the photoaging of historical plastic formulations. After light exposure, both PE references and historical samples yellowed, PR53:1 faded, and PR 48:2 darkened; however, both organic pigments faded severely in the historical samples. This highlights the role played by the plastic binder likely facilitating the pigment photofading. Fourier transform infrared spectroscopy and mass spectrometry techniques—EGA-MS, PY-GC/MS, and TD-GC/MS—were successfully employed for characterizing the plastic formulations and degradation. The identification of phthalic compounds in both aged β-naphthol powders opens new venues for studies on their degradation. This work’s approach and analytical methods in studying the discoloration of historical plastics are novel, proving their efficacy, reliability, and potentiality.

12Н-quinoxaline[2,3-b]phenoxazines: Synthesis, optical, electrochemical properties and insight into photovoltaic application

2021 ◽  
pp. 109848
Author(s):  
Eugeny P. Ivakhnenko ◽  
Pavel A. Knyazev ◽  
Nikolay I. Omelichkin ◽  
Nadezhda I. Makarova ◽  
Andrey G. Starikov ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Photovoltaic Application ◽  
Insight Into

Single-step hydrothermal synthesis of nitrogen-doped ZnO nanostructures and an insight into its electrochemical properties

2021 ◽  
Author(s):  
Alisha Mary Manoj ◽  
Leema Rose Viannie ◽  
Chittur Krishnaswamy Subramaniam ◽  
Narayanasamy Arunai Nambi Raj ◽  
Geetha Manivasagam
Keyword(s):  
Hydrothermal Synthesis ◽  
Electrochemical Properties ◽  
Single Step ◽  
Zno Nanostructures ◽  
Nitrogen Doped ◽  
Doped Zno ◽  
Insight Into

Non-Heme Diiron Model Complexes Can Mediate Direct NO Reduction: Mechanistic Insight into Flavodiiron NO Reductases

2018 ◽  
Vol 140 (41) ◽  
pp. 13429-13440 ◽  
Author(s):  
Hai T. Dong ◽  
Corey J. White ◽  
Bo Zhang ◽  
Carsten Krebs ◽  
Nicolai Lehnert
Keyword(s):  
No Reduction ◽  
Model Complexes ◽  
Mechanistic Insight ◽  
Insight Into

LIGHT-INDUCED MODIFICATION OF KINETIC MOLECULAR PROPERTIES: ENHANCEMENT OF OPTICAL KERR EFFECT IN ABSORBING LIQUIDS, PHOTOINDUCED TORQUE AND MOLECULAR MOTORS IN DYE-DOPED NEMATICS

2000 ◽  
Vol 09 (02) ◽  
pp. 157-182 ◽  
Author(s):  
M. KREUZER ◽  
L. MARRUCCI ◽  
D. PAPARO
Keyword(s):  
Liquid Crystals ◽  
Molecular Motors ◽  
Kerr Effect ◽  
Optical Nonlinearity ◽  
Molecular Structures ◽  
Molecular Properties ◽  
Main Role ◽  
Theoretical Results ◽  
Insight Into ◽  
Dye Molecule

In this paper we review some experimental and theoretical results on the enhancement of orientational optical nonlinearities observed in dye-doped liquids and liquid crystals. We argue that this enhancement is derived from a photoinduced modification of kinetic molecular properties. Moreover we highlight an analogy between the mechanism of this effect in nematic liquid crystals and the working principles of "molecular motors". This analogy helps us to refine the understanding of this effect and to identify the molecular parameters which play the main role. Finally we review some recent experimental results about the dependence of the optical nonlinearity enhancement on the detailed dye and host molecular structures. These results provide some insight into the light-induced phenomena taking place inside a dye molecule.

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