aza-BODIPY synthesis towards vis/NIR functional chromophores based on a Schiff base forming reaction protocol using lactams and heteroaromatic amines

2019 ◽  
Vol 55 (60) ◽  
pp. 8722-8743 ◽  
Author(s):  
Soji Shimizu
Keyword(s):  
Schiff Base ◽  
Near Infrared ◽  
New Class

The Schiff base forming reaction of lactams and heteroaromatic amines led to creation of a new class of aza-BODIPY analogues as visible and near infrared functional chromophores.

[Ln4] Complexes Based on 8-hydroxylquinoline-Schiff Base: Synthesis, Crystal Structure and Near-infrared Emission

Polyhedron ◽  
2021 ◽  
pp. 115165
Author(s):  
Jian Gou ◽  
Qian-Qi Yang ◽  
Si-Yu Li ◽  
Li-Hua Zhao ◽  
Hong-Ling Gao ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

A new class of supramolecular liquid crystals derived from azo calix[4]arene functionalized 1,3,4-thiadiazole derivatives

2019 ◽  
Vol 43 (8) ◽  
pp. 3556-3564 ◽  
Author(s):  
Vinay S. Sharma ◽  
Akshara P. Shah ◽  
Anuj S. Sharma
Keyword(s):  
Schiff Base ◽  
Liquid Crystals ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
New Class ◽  
Azo Group ◽  
Thiadiazole Derivatives ◽  
Upper Rim

A new class of bowl-shaped supramolecular liquid crystals (LCs) is described derived from calix[4]arene substituted with 1,3,4-thiadiazole derivatives, inbuilt with Schiff base and ester on the lower rim and with an azo group on the upper rim with an alkyl side chain (–OC3H7, –OC8H17).

Synthesis, characterization, and antiproliferative and apoptosis inducing effects of novels-triazine derivatives

2018 ◽  
Vol 42 (3) ◽  
pp. 1698-1714 ◽  
Author(s):  
Mani Shanmugam ◽  
Kuppusamy Narayanan ◽  
Kamatam Hari Prasad ◽  
Dhanapalan Karthikeyan ◽  
Loganathan Chandrasekaran ◽  
...  
Keyword(s):  
Schiff Base ◽  
Nucleophilic Substitution ◽  
Antitumor Agents ◽  
New Class ◽  
Schiff Base Derivatives ◽  
Triazine Derivatives

In an attempt to design and synthesize a new class of antitumor agents, a mild and eco-friendly protocol for nucleophilic substitution using ans-triazine scaffold,viaamine and Schiff base derivatives, has been developed.

scholarly journals Электронная структура и спектры оптического поглощения золотых фуллеренов Au-=SUB=-16-=/SUB=- и Au-=SUB=-20-=/SUB=-

2019 ◽  
Vol 61 (6) ◽  
pp. 1204
Author(s):  
Г.И. Миронов
Keyword(s):  
Optical Properties ◽  
Energy Spectrum ◽  
Optical Absorption ◽  
Near Infrared ◽  
Fourier Transforms ◽  
Green Functions ◽  
Optical Absorption Spectra ◽  
New Class ◽  
Infrared Spectral ◽  
Neighboring Site

AbstractThe electronic and optical properties of gold fullerenes are studied in the framework of the Hubbard model. The expressions of the Fourier transforms of anticommutator Green functions have been obtained for gold fullerenes Au_16 and Au_20, the poles of which determine the energy spectrum of the system under consideration. The calculations are performed for the thermodynamic means that characterize jumps of electrons from a nanosystem site to a neighboring site, the correlation functions demonstrating the possibility of existing two d electrons with oppositely oriented spin projections on the same site of the fullerenes consisting of gold atoms. The optical absorption spectra are presented. The optical absorption peaks of ions $${\text{Au}}_{{20}}^{ - }$$ and $${\text{Au}}_{{16}}^{ - }$$ correspond to a near-infrared spectral region, where the light absorption by blood or a soft tissue is vanishingly small; thus, these ions can be used as a new class of contrast improvements and phototherapeutic means for diagnostics and treatment of cancer.

Construction of dimetal-containing dithiolene and Schiff base conjugated polymer coating: exploiting metal coordination as a design strategy for improving infrared stealth properties

2019 ◽  
Vol 10 (43) ◽  
pp. 5839-5848 ◽  
Author(s):  
Jingwen Cai ◽  
Jianhua Han ◽  
Guojia Ma ◽  
Xing Liu ◽  
Jinyan Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Conjugated Polymer ◽  
Polymer Coating ◽  
Near Infrared ◽  
Far Infrared ◽  
Design Strategy ◽  
Polymer Coatings ◽  
Metal Coordination ◽  
Infrared Range

Dimetal-containing dithiolene and Schiff base conjugated polymer coatings are constructed and exhibit excellent stealth abilities in the NIR (near-infrared) and MFIR (mid–far-infrared) range.

scholarly journals Upper Limits for the Luminosity of a dM Companion in AM Herculis Objects

1980 ◽  
Vol 88 ◽  
pp. 471-472
Author(s):  
S. Tapia ◽  
G. V. Coyne
Keyword(s):  
Binary Systems ◽  
Near Infrared ◽  
Close Binary ◽  
Optical Identification ◽  
New Class ◽  
Upper Limits ◽  
Infrared Spectral ◽  
Cyclotron Emission ◽  
High Degree ◽  
The Magnetic Field

SummaryThe quest for optical identification of X-ray sources has revealed a new class of variables currently formed by AM Her, AN UMa, VV Pup, and the most recent member, 2A 0311-227 (for which a variable star designation will be available soon). These objects show many of the variations common to close binary systems where mass transfer is under way. However, they are distinguished by the high degree (10 to 35 %) of linear and circular polarization observed in the optical and near infrared spectral regions. Apparently the polarization is due to cyclotron emission of electrons located in a region where the magnetic field strength is about 108 gauss.

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