Molecular structures, DFT studies and their photophysical properties in solution and solid state. Microwave-assisted multicomponent synthesis of organotin bearing Schiff bases

2019 ◽  
Vol 1180 ◽  
pp. 642-650 ◽  
Author(s):  
Arelly M. Cantón-Díaz ◽  
Blanca M. Muñoz-Flores ◽  
Ivana Moggio ◽  
Eduardo Arias ◽  
Gleb Turlakov ◽  
...  
Keyword(s):  
Solid State ◽  
Schiff Bases ◽  
Photophysical Properties ◽  
Molecular Structures ◽  
Dft Studies ◽  
Multicomponent Synthesis ◽  
Microwave Assisted

scholarly journals Effects of Substituents on the Blue Luminescence of Disilane-Linked Donor‒Acceptor‒Donor Triads

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 521 ◽  
Author(s):  
Tsukasa Usuki ◽  
Kenichiro Omoto ◽  
Masaki Shimada ◽  
Yoshinori Yamanoi ◽  
Hidetaka Kasai ◽  
...  
Keyword(s):  
Solid State ◽  
Density Functional ◽  
Photophysical Properties ◽  
Density Functional Theory Calculations ◽  
Molecular Structures ◽  
Optical Measurements ◽  
X Ray Diffraction ◽  
Absolute Quantum Yield ◽  
Donor Acceptor ◽  
Metal Catalyzed

A series of disilane-linked donor‒acceptor‒donor triads (D‒Si‒Si‒A‒Si‒Si‒D) was synthesized to investigate the effects of substituents on the photophysical properties. The triads were prepared by metal-catalyzed diiodosilylation of aryl iodides using a Pd(P(t-Bu)3)2/(i-Pr)2EtN/toluene system that we previously developed. Optical measurements, X-ray diffraction analysis, and density functional theory calculations revealed relationships between the photophysical properties and molecular structures of these triads in solution and in the solid state. The compounds emitted blue to green fluorescence in CH2Cl2 solution and in the solid state. Notably, compound 2 showed fluorescence with an absolute quantum yield of 0.17 in the solid state but showed no fluorescence in CH2Cl2. Our findings confirmed that the substituent adjacent to the disilane moiety affects the conformations and emission efficiencies of compounds in solution and in the solid state.

Photophysical properties of di-Schiff bases: evaluating the synergistic effect of non-covalent interactions and alkyl spacers in enhanced emissions of solids

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 57780-57792 ◽  
Author(s):  
Moyna Das ◽  
Fayaz Baig ◽  
Madhushree Sarkar
Keyword(s):  
Solid State ◽  
Synergistic Effect ◽  
Schiff Bases ◽  
Photophysical Properties ◽  
Light Emitting ◽  
Emission Properties ◽  
Flexible Spacer ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Di-Schiff bases with alkyl spacer (ethyl, butyl and hexyl) showed enhanced light emitting properties in solid state, while quenching was observed for di-Schiff bases with hydrazine spacer. Packing of the molecules via non covalent interactions along with the flexible spacer played the role in dictating the emission properties.

Reversible Luminescent "Off-On" Regulation Based on Tunable Photodimerization via Crystal-to-Cocrystal Transformation

2021 ◽  
Author(s):  
Yufei Wang ◽  
Hongxing Shang ◽  
Bao Li ◽  
Shimei Jiang
Keyword(s):  
Solid State ◽  
Photophysical Properties ◽  
Molecular Structures ◽  
Organic Solid ◽  
Solid State Materials ◽  
Organic Solid State

The photophysical properties of organic solid-state materials are inextricably linked to the molecular structures and packing modes. However, it is still a challenge to accurately tune the fluorescent color or...

Organotin compounds bearing C3-symmetric Schiff base: Microwave-assisted multicomponent synthesis and their photophysical properties

2021 ◽  
pp. 122111
Author(s):  
Arelly Cantón-Diaz ◽  
Blanca M. Muñoz-Flores ◽  
Jessica Berrones-Reyes ◽  
Ivana Moggio ◽  
Eduardo Arias ◽  
...  
Keyword(s):  
Schiff Base ◽  
Photophysical Properties ◽  
Organotin Compounds ◽  
Multicomponent Synthesis ◽  
Microwave Assisted

A molecular roundabout: triple cyclically arranged hydrogen bonds in light of experiment and theory

2018 ◽  
Vol 42 (24) ◽  
pp. 19467-19477 ◽  
Author(s):  
Agnieszka Kwocz ◽  
Jarosław Jan Panek ◽  
Aneta Jezierska ◽  
Łukasz Hetmańczyk ◽  
Andrzej Pawlukojć ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Schiff Bases ◽  
Dft Studies ◽  
X Ray

This paper dwells on the synthesis and diverse studies of cyclically arranged hydrogen bridges in tris-hydroxy aryl Schiff bases. Experimental (IINS, IR, Raman and X-ray) and theoretical (CPMD, DFTP and DFT) studies of tris-hydroxy aryl Schiff bases have been performed in the solid state.

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