Matrix-Isolation FT-IR Studies and Theoretical Calculations of Different Types of Hydrogen-Bonding:  2-Hydroxypyridine/2-Oxopyridine Complexed with HCl

1999 ◽  
Vol 103 (50) ◽  
pp. 11020-11025 ◽  
Author(s):  
A. Dkhissi ◽  
L. Houben ◽  
R. Ramaekers ◽  
L. Adamowicz ◽  
G. Maes
Keyword(s):  
Hydrogen Bonding ◽  
Theoretical Calculations ◽  
Matrix Isolation ◽  
Ir Studies ◽  
Different Types ◽  
Ft Ir

Matrix-isolation FT-IR studies and theoretical calculations of the vibrational properties of 4-methyl-2′-hydroxy-4′-ethyloxyazobenzene

2003 ◽  
Vol 286 (2-3) ◽  
pp. 193-204 ◽  
Author(s):  
J. Pajak ◽  
R. Ramaekers ◽  
M. Rospenk ◽  
V. Alexandrov ◽  
S. Stepanian ◽  
...  
Keyword(s):  
Theoretical Calculations ◽  
Matrix Isolation ◽  
Vibrational Properties ◽  
Ir Studies ◽  
Ft Ir

scholarly journals Development of New High-Performance Biphenyl and Terphenyl Derivatives as Versatile Photoredox Photoinitiating Systems and Their Applications in 3D Printing Photopolymerization Processes

Catalysts ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 827 ◽  
Author(s):  
Tomal ◽  
Pilch ◽  
Chachaj-Brekiesz ◽  
Ortyl
Keyword(s):  
Free Radical ◽  
High Performance ◽  
Theoretical Calculations ◽  
Polymer Networks ◽  
Electrochemical Analysis ◽  
Type Ii ◽  
Long Wave ◽  
Different Types ◽  
Ft Ir ◽  
Iodonium Salt

Novel 2-amino-4-methyl-6-phenyl-benzene-1,3-dicarbonitrile derivatives were proposed as photosensitizes of iodonium salt for a highly effective bimolecular photoinitiating system upon soft irradiation conditions under long-wave ultraviolet (UV-A) and visible light. Remarkably, these structures are highly versatile, allowing access to photoinitiating systems for the free-radical polymerization of acrylates, the cationic photopolymerization of epoxides, glycidyl, and vinyl ethers, the synthesis of interpenetrated polymer networks (IPNs) and the thiol-ene photopolymerization processes. Excellent polymerization profiles for all of the monomers, along with the high final conversions, were obtained. The initiation mechanisms of these bimolecular systems based on the 2-amino-4-methyl-6-phenyl-benzene-1,3-dicarbonitrile derivatives were investigated using the real-time FT-IR technique, steady-state photolysis, fluorescence experiments, theoretical calculations of molecular orbitals, and electrochemical analysis. Moreover, the 2-amino-4-methyl-6-phenyl-benzene-1,3-dicarbonitrile derivatives were investigated as a type II free-radical photoinitiator with amine. It was confirmed that the 2-amino-4-methyl-6-phenyl-benzene-1,3-dicarbonitrile derivatives, in combination with different types of additives, e.g., amine as co-initiator or in the presence of onium salt, can act as a bimolecular photoinitiating system via the photo-reduction or photo-oxidation pathways, respectively.

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