The impact of positional isomerism on electronic and photochromic properties of 1D zinc-based naphthalene diimide coordination polymers

CrystEngComm ◽  
2020 ◽  
Vol 22 (19) ◽  
pp. 3371-3377 ◽  
Author(s):  
Pengfei Hao ◽  
Huihui Zhu ◽  
Yue Pang ◽  
Junju Shen ◽  
Yunlong Fu

The positional isomeric DPNDI ligands can effectively modulate the interfacial contacts of electron donors/acceptors and the efficiency of electronic/photochromic properties.

2017 ◽  
Vol 643 (22) ◽  
pp. 1766-1770 ◽  
Author(s):  
Jian-Jun Liu ◽  
Shu-Biao Xia ◽  
Liu Teng ◽  
Chi-Xian He ◽  
Fei-Xiang Cheng ◽  
...  

CrystEngComm ◽  
2021 ◽  
Author(s):  
Huihui Zhu ◽  
Pengfei Hao ◽  
Qiu Shen ◽  
Junju Shen ◽  
Gaopeng Li ◽  
...  

The electron-rich solvents can effectively regulate the interfacial contacts of electron donors/acceptors and the photochromic properties of naphthalene diimide molecules.


2015 ◽  
Vol 44 (39) ◽  
pp. 17312-17317 ◽  
Author(s):  
Jian-Jun Liu ◽  
Ying-Fang Guan ◽  
Yong Chen ◽  
Mei-Jin Lin ◽  
Chang-Cang Huang ◽  
...  

Due to the different lone pair–π interactions between the capped halogen atoms and electron-deficient naphthalene diimide moieties in three isostructural coordination networks, they exhibit different electron-transfer photochromic behaviours upon irradiation.


2019 ◽  
Vol 20 (1) ◽  
pp. 345-351 ◽  
Author(s):  
Pengfei Hao ◽  
Huihui Zhu ◽  
Yue Pang ◽  
Junju Shen ◽  
Yunlong Fu

2013 ◽  
Vol 58 (2) ◽  
pp. 449-463 ◽  
Author(s):  
Mieczysław Żyła ◽  
Agnieszka Dudzińska ◽  
Janusz Cygankiewicz

Ethane constitutes an explosive gas. It most often accompanies methane realizing during exploitation and mining works. In this paper the results of ethane sorption have been discussed on three grain classes of six selected hard coal samples collected from active Polish coalmines. On the basis of obtained results, it has been stated that the tested hard coals prove differentiated sorption power with reference to ethane. Te extreme amount of ethane is sorbed by low carbonized hard coal from “Jaworzno” coalmine. This sort of coal shows great porosity, and great content of oxygen and moisture. The least amount of ethane is sorbed by hard coal from “Sośnica” coalmine. This sort of coal possesses relatively a great deal of ash contents. Together with the process of coal disintegration, the amount of sorbed ethane increases for all tested coal samples. Between tested coals there are three medium carbonized samples collected from “Pniówek”, “Chwałowice” “Zofiówka” coalmines which are characterized by small surface values counted according to model BET from nitrogen sorption isotherms determined at the temperature of 77.5 K. The samples of these three coals prove the highest, from between tested coals, increase of ethane sorption occurring together with their disintegration. These samples disintegrated to 0,063-0,075 mm grain class sorb ethane in the amount corresponding with the sorption quantity of low carbonized coal from “Jaworzno” coalmine in 0.5-0.7 mm grain class. It should be marked that the low carbonized samples collected from “Jaworzno” and Wesoła” coalmines possess large specific surface and great porosity and belong to coal group of “loose” spatial structure. Regarding profusion of sorbed ethane on disintegrated medium carbonized samples from “Pniówek”, “Zofiówka”, “Chwałowice” coalmines it can be supposed that in the process of coal disintegration, breaking their “compact’ structure occurs. Loosened structure of medium carbonized coals results in increasing accessibility of ethane particles to sorption centres both electron donors and electron acceptors which are present on hard coal surface. The surface sorption centre increase may result in formation a compact layer of ethane particles on coal surface. In the formed layer, not only the strengths of vertical binding of ethane particles with the coal surface appear but also the impact of horizontal strengths appears which forms a compact layer of sorbed ethane particles. The surface layer of ethane particles may lead to explosion.


Author(s):  
Zhenzhong Li ◽  
Lorenz Roesler ◽  
Till Wissel ◽  
Hergen Breitzke ◽  
Kathrin Hofmann ◽  
...  

Three chiral dirhodium coordination polymers Rh2-Ln (n=1-3) have been synthesized via ligand exchange between dirhodium trifluoroacetate Rh2(TFA)4 and differently sized chiral dicarboxylic acids derived from L-tert-leucine. SEM images indicate that...


CrystEngComm ◽  
2021 ◽  
Author(s):  
susan soleymani babadi ◽  
Azizollah Beheshti ◽  
Maryam bahrani ◽  
Behrang Salahshour nia ◽  
Hamid Reza Zafarian ◽  
...  

An investigation of the impact of shape, size and coordination ability of the counter ions was carried out on a five silver(I)- 1, 2- bis (1-methylthioimidazolyl) ethane coordination polymers namely,...


2017 ◽  
Vol 101 (21) ◽  
pp. 7997-8005 ◽  
Author(s):  
Xianbin Ying ◽  
Kun Guo ◽  
Wei Chen ◽  
Yuan Gu ◽  
Dongsheng Shen ◽  
...  

2013 ◽  
Vol 52 (3) ◽  
pp. 1199-1205 ◽  
Author(s):  
Rong-Guang Lin ◽  
Gang Xu ◽  
Ming-Sheng Wang ◽  
Gang Lu ◽  
Pei-Xin Li ◽  
...  

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