Hydrophilic and degradable polylactones via copolymerization of ε-caprolactone and oxo-crown ether catalyzed by a bifunctional organic base

2021 ◽  
pp. 105123
Author(s):  
Zhitao Hu ◽  
Xiaohui Cao ◽  
Huahua Huang ◽  
Yongming Chen
Keyword(s):  
Crown Ether ◽  
Organic Base

Synthesis and characterization of sandwich-type gadolinium and ytterbium crown ether-substituted phthalocyanines

2000 ◽  
Vol 04 (06) ◽  
pp. 588-590 ◽  
Author(s):  
LUDMILA A. LAPKINA ◽  
ELINA NISKANEN ◽  
HANNU RÖNKKÖMÄKI ◽  
VLADIMIR E. LARCHENKO ◽  
KONSTANTIN I. POPOV ◽  
...  
Keyword(s):  
Crown Ether ◽  
Free Ligand ◽  
Direct Interaction ◽  
Original Method ◽  
Synthesis And Characterization ◽  
Organic Base ◽  
Metal Free ◽  
Vis Spectroscopy ◽  
Sandwich Type

An original method based on metal-free ligand and lanthanide acetate direct interaction in the presence of a strong organic base (DBU) is used to prepare sandwich-type gadolinium and ytterbium crown-ether substituted phthalocyanines bis[4,5,4′,5′,4″,5″,4‴,5‴-tetrakis(1,4,7,10,13-pentaoxatridecamethylene)phthalocyaninato]gadolinium (ytterbium) and tris[4,5,4′,5′,4″,5″,4‴-,5‴-tetrakis(1,4,7,10,13-pentaoxatridecamethylene)phthalocyaninato]digadolinium (ytterbium) which are characterized by MALDI-TOF mass spectrometry and UV-vis spectroscopy.

Preparation and Gas Sensitivity of Crown Ether Metal Complex Film Gas Sensor

2020 ◽  
Vol 2 (1) ◽  
pp. 1-12
Author(s):  
Gulgina Mamtimin ◽  
Halisa Arkin ◽  
Patima Nizamidin ◽  
Erkin Tursun ◽  
Abliz Yimit
Keyword(s):  
Crown Ether ◽  
Metal Complex ◽  
Gas Sensor ◽  
Gas Sensitivity ◽  
Complex Film

PEO-based electrolytes blended with star polymers with precisely imprinted polymeric pseudo-crown ether cavities for alkali metal ion batteries

2019 ◽  
Vol 576 ◽  
pp. 182-189 ◽  
Author(s):  
Zhuliu Xiao ◽  
Binghua Zhou ◽  
Jirong Wang ◽  
Cai Zuo ◽  
Dan He ◽  
...  
Keyword(s):  
Crown Ether ◽  
Alkali Metal ◽  
Metal Ion ◽  
Star Polymers ◽  
Alkali Metal Ion

Electrochemiluminescence of Ruthenium(II) Complexes Functionalized with Crown Ether Pendants and Effects of Cation Binding

2008 ◽  
Vol 47 (3) ◽  
pp. 1218-1223 ◽  
Author(s):  
Mei-Jin Li ◽  
Zuofeng Chen ◽  
Nianyong Zhu ◽  
Vivian Wing-Wah Yam ◽  
Yanbing Zu
Keyword(s):  
Crown Ether ◽  
Cation Binding

Crown ethers in hydrogenated graphene

2021 ◽  
Author(s):  
Kai Guo ◽  
Sitong Liu ◽  
Haoming Tu ◽  
Zhikun Wang ◽  
Liang Chen ◽  
...  
Keyword(s):  
Crown Ether ◽  
Crown Ethers ◽  
Hydrogenated Graphene ◽  
High Flexibility

Crown ethers could serve as hosts to selectively incorporate various guest atoms or molecules within the macrocycles. However, the high flexibility of crown ether molecules limits their applications in areas...

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