scholarly journals Controllable Molecular Packing Motif and Overlap Type in Organic Nanomaterials for Advanced Optical Properties

Crystals ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 22 ◽  
Author(s):  
Taoyu Zou ◽  
Xiaoyan Wang ◽  
Haidong Ju ◽  
Li Zhao ◽  
Tingting Guo ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Packing ◽  
Organic Nanomaterials

scholarly journals The role of molecular packing on the UV-visible optical properties of [Re 2 Cl 2 (CO) 6 4,5-(Me 3 Si) 2 pyridazine]

2012 ◽  
Author(s):  
P. Spearman ◽  
S. Tavazzi ◽  
L. Silvestri ◽  
A. Burini ◽  
A. Borghesi ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Packing ◽  
Uv Visible

Correlation between Molecular Packing and Optical Properties in Different Crystalline Polymorphs and Amorphous Thin Films ofmer-Tris(8-hydroxyquinoline)aluminum(III)

2000 ◽  
Vol 122 (21) ◽  
pp. 5147-5157 ◽  
Author(s):  
Martin Brinkmann ◽  
Gregory Gadret ◽  
Michele Muccini ◽  
Carlo Taliani ◽  
Norberto Masciocchi ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Molecular Packing ◽  
Amorphous Thin Films

scholarly journals Formation and optical properties of metal/10-hydroxybenzo[h]quinolone complexes in the interlayer spaces of magadiite by solid–solid reactions

2018 ◽  
Vol 5 (5) ◽  
pp. 171732
Author(s):  
Yifu Zhang ◽  
Shengnan Gao ◽  
Hanmei Jiang ◽  
Qiushi Wang ◽  
Yan Cheng ◽  
...  
Keyword(s):  
Optical Properties ◽  
Complex Formation ◽  
Metal Ions ◽  
Interlayer Space ◽  
Metal Cations ◽  
Molecular Packing ◽  
Current Work ◽  
Intercalated Compounds ◽  
Coordination Ability

Intercalation and in situ formation of three fluorescent complexes, Al(III)-, Cr(III)- and Cu(II)-10-hydroxybenzo[h]quinolone (M-HBQ, M = Al, Cr and Cu), in the interlayer spaces of magadiite (mag) were studied by solid–solid reactions between metal ions exchanged mags (M-mag, M = Al, Cr and Cu) and HBQ. Results show that the basal spacings of the intercalated composites increase after the intercalation of HBQ into M-mags. The amount of HBQ in the intercalated compounds is different due to the amount of metal ions and the diversification of coordination ability of metal ions, and the order of the coordination ability of these three metal ions is Cu 2+  > Cr 3+  > Al 3+ . The amount of the metal cations in the interlayer of mag is enough for the in situ complex formation of M-HBQ complexes. The slight shift of the absorption and luminescence bands of the complexes suggests the different microstructures, including molecular packing of the complexes in the interlayer spaces of mags, resulting that the host–guest interactions are formed. These findings show that the intercalation and in situ formation of M-HBQ complexes (M = Al, Cr and Cu) in the interlayer space of mag are successfully achieved in the current work.

scholarly journals Optical Characteristics and Applications of AIE Racemic C6-Unsubstituted Tetrahydropyrimidines

2021 ◽  
Vol 9 ◽  
Author(s):  
Qiuhua Zhu
Keyword(s):  
Optical Properties ◽  
Molecular Packing ◽  
Molecular Structures ◽  
Optical Characteristics ◽  
Quantum Yields ◽  
Central Ring ◽  
Strong Emission ◽  
Aryl Ring ◽  
Fluorescence Quantum Yields

Racemic C6-unsubstituted tetrahydropyrimidines (THPs) are the products of an efficient five-component reaction that we developed. THPs show strong AIE characteristics, that is, completely no fluorescence in different solvents but strong emission with fluorescence quantum yields (ΦF) up to 100% upon aggregation. However, the ΦF values of their pure enantiomers are lower than 46%. Unlike common AIE compounds with crowded aryl rotors on a π-bond or on an aryl ring, THPs have three completely non-crowded aryl rotors on a non-aromatic chiral central ring (tetrahydropyrimidine). In this mini review, we first discuss the AIE characteristics of THPs and the influences of molecular structures on their molecular packing modes and optical properties, and then present their applications and forecast the development of other racemic AIE compounds.

Growth of Single-Crystalline Tris-(8-Hydroxyquinoline) Gallium Uniform Sub-Microrods and their Optical Properties

2017 ◽  
Vol 898 ◽  
pp. 1817-1823
Author(s):  
Cheng Hu Dai ◽  
Zhi Xian Wei ◽  
Zhi Yong Pang ◽  
Sheng Hao Han
Keyword(s):  
Optical Properties ◽  
Absorption Spectrum ◽  
Cross Sections ◽  
Organic Materials ◽  
Energy Gap ◽  
Blue Shift ◽  
Molecular Packing ◽  
Single Crystalline ◽  
One Dimensional ◽  
Α Phase

One dimensional (1-D) organic materials have a bright prospect in the field of optoelectronics. Intrigued by these, 1-D uniform sub-micrometer tris-(8-hydroxyquinoline) gallium (GaQ3) rods were prepared with surfactant by an extremely facial method. The GaQ3 rods with hexagonal cross sections had excellent crystallinity and optical properties. The measurement of the absorption spectrum showed that there was an obvious blue shift comparing with the GaQ3 film. This can be explained by that the molecular packing in the α-phase rods has a looser interligand spacing compared with the GaQ3 film, consequently resulting in reduced orbital overlap and larger energy gap.

scholarly journals Solid-State Conformation, Molecular Packing, and Electrical and Optical Properties of Processable β-Methylated Sexithiophenes

1999 ◽  
Vol 121 (38) ◽  
pp. 8920-8926 ◽  
Author(s):  
Giovanna Barbarella ◽  
Massimo Zambianchi ◽  
Luciano Antolini ◽  
Paolo Ostoja ◽  
Piera Maccagnani ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Molecular Packing ◽  
Electrical And Optical Properties ◽  
Solid State Conformation

Interplay between optical properties and molecular packing in novel isolated crystalline phases of tris-(8-hydroxyquinoline) Aluminium (III)

2001 ◽  
Vol 121 (1-3) ◽  
pp. 1499-1500 ◽  
Author(s):  
M. Brinkmann ◽  
G. Gadret ◽  
C. Taliani ◽  
N. Masciocchi ◽  
A. Sironi ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Packing ◽  
Crystalline Phases
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