Three water-stable luminescent two-dimensional CdII-based coordination polymers as sensors for highly sensitive and selective detection of Cr2O72− and CrO42− anions

CrystEngComm ◽  
2020 ◽  
Vol 22 (29) ◽  
pp. 4875-4886 ◽  
Author(s):  
Yong-Sheng Shi ◽  
Qing-Qing Xiao ◽  
Lianshe Fu ◽  
Guang-Hua Cui
Keyword(s):  
Coordination Polymers ◽  
Selective Detection ◽  
Two Dimensional ◽  
Highly Sensitive

Three 2D CdII-CPs with different topologies were prepared, in which 1 and 3 are rare examples which display excellent sensitivity, selectivity, recyclability and structural stabilities for the detection of Cr2O72−/CrO42−.

Assembly of two novel coordination polymers by selecting ditopic or chelating auxiliary ligands with naphthalene-2,6-dicarboxylic acid: synthesis, structure and luminescence sensing

2020 ◽  
Vol 76 (12) ◽  
pp. 1076-1084
Author(s):  
Yuxiang Zuo ◽  
Jie Yang ◽  
Cheng Chen ◽  
Yun-Shan Xue ◽  
Jun Zhang
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Chemical Sensors ◽  
Acid Synthesis ◽  
Selective Detection ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Biochemical Processes ◽  
Solvothermal Methods

The FeIII ion as a ubiquitous metal plays a key role in biochemical processes. Iron deficiency or excess in the human body can induce various diseases. Thus, effective detection of the FeIII ion has been deemed an issue of focus. To develop more crystalline chemical sensors for the selective detection of Fe3+, two novel two-dimensional (2D) coordination polymers, namely, poly[[[μ-bis(pyridin-4-yl)amine-κ2 N:N′](μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6)zinc(II)] 0.5-hydrate], {[Zn(C12H6O4)(C10H9N3)]·0.5H2O} n , 1, and poly[(4,4′-dimethyl-2,2′-bipyridine-κ2 N,N′)(μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6)hemi(μ-naphthalene-2,6-dicarboxylic acid-κ2 O 2:O 6)copper(II)] [Cu(C12H6O4)(C12H12N2)(C12H8O4)0.5] n , 2, have been prepared using solvothermal methods. Single-crystal X-ray diffraction analysis shows that compound 1 is an undulating twofold interpenetrated 2D (4,4)-sql network and compound 2 is a twofold interpenetrated 2D honeycomb-type network with a (6,3)-hcb topology. In addition, 1 exhibits highly selective sensing for the Fe3+ ion.

Multifunctional luminescent coordination polymers based on tricarboxylic acid for the detection of 2,4-dinitrophenol and iron(iii) and aluminum(iii) ions

2019 ◽  
Vol 43 (9) ◽  
pp. 3690-3697 ◽  
Author(s):  
Mürsel Arici
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Tricarboxylic Acid ◽  
Luminescence Quenching ◽  
Selective Detection ◽  
Highly Sensitive

2D Zn(ii)-coordination polymer exhibited highly sensitive and selective detection towards DNP, Fe3+ and Al3+ ions in the presence of other interfering compounds through luminescence quenching and enhancement, respectively.

Highly sensitive infrared detector based on a two-dimensional heterojunction

2021 ◽  
Vol 14 (1) ◽  
pp. 1-13
Author(s):  
ZHANG Jin-yue ◽  
◽  
LU Jun-peng ◽  
NI Zhen-hua
Keyword(s):  
Infrared Detector ◽  
Two Dimensional ◽  
Highly Sensitive

scholarly journals Terahertz characterization of two-dimensional low-conductive layers enabled by metal gratings

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Prashanth Gopalan ◽  
Yunshan Wang ◽  
Berardi Sensale-Rodriguez
Keyword(s):  
Optical Transmission ◽  
Terahertz Spectroscopy ◽  
Design Guidelines ◽  
Two Dimensional ◽  
Highly Sensitive ◽  
Transmission Measurements ◽  
Metal Gratings ◽  
Low Sensitivity ◽  
Non Destructive

AbstractWhile terahertz spectroscopy can provide valuable information regarding the charge transport properties in semiconductors, its application for the characterization of low-conductive two-dimensional layers, i.e., σs <  < 1 mS, remains elusive. This is primarily due to the low sensitivity of direct transmission measurements to such small sheet conductivity levels. In this work, we discuss harnessing the extraordinary optical transmission through gratings consisting of metallic stripes to characterize such low-conductive two-dimensional layers. We analyze the geometric tradeoffs in these structures and provide physical insights, ultimately leading to general design guidelines for experiments enabling non-contact, non-destructive, highly sensitive characterization of such layers.

AIE-active Schiff base compounds as fluorescent probe for the highly sensitive and selective detection of Al3+ ions

2021 ◽  
Vol 233 ◽  
pp. 117911
Author(s):  
Minmin Wang ◽  
Linxia Lu ◽  
Wenwu Song ◽  
Xunyue Wang ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Selective Detection ◽  
Highly Sensitive
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