scholarly journals A one-dimensional infinite silver alkynyl assembly [Ag8(CCtBu)5(CF3COO)3(CH3CN)]n: synthesis, crystal structure and properties

RSC Advances ◽  
2020 ◽  
Vol 10 (27) ◽  
pp. 16045-16049
Author(s):  
Ju-Feng Shi ◽  
Zhi-Jin Chen ◽  
Liu-Jie Zhang ◽  
Kun Zhou ◽  
Jiu-Yu Ji ◽  
...  

A high-yield one-dimensional infinite silver alkynyl assembly [Ag8(CCtBu)5(CF3COO)3(CH3CN)]n (1) displays excellent photocurrent properties and temperature-sensitive luminescence properties.

2020 ◽  
Vol 76 (5) ◽  
pp. 468-475
Author(s):  
Andrzej Okuniewski ◽  
Damian Rosiak ◽  
Jarosław Chojnacki

By the reaction of urea or thiourea, acetylacetone and hydrogen halide (HF, HBr or HI), we have obtained seven new 4,6-dimethyl-2-pyrimido(thio)nium salts, which were characterized by single-crystal X-ray diffraction, namely, 4,6-dimethyl-2-oxo-2,3-dihydropyrimidin-1-ium bifluoride, C6H9N2O+·HF2 − or (dmpH)F2H, 4,6-dimethyl-2-oxo-2,3-dihydropyrimidin-1-ium bromide, C6H9N2O+·Br− or (dmpH)Br, 4,6-dimethyl-2-oxo-2,3-dihydropyrimidin-1-ium iodide, C6H9N2O+·I− or (dmpH)I, 4,6-dimethyl-2-oxo-2,3-dihydropyrimidin-1-ium iodide–urea (1/1), C6H9N2O+·I−·CH4N2O or (dmpH)I·ur, 4,6-dimethyl-2-sulfanylidene-2,3-dihydropyrimidin-1-ium bifluoride–thiourea (1/1), C6H9N2S+·HF2 −·CH4N2S or (dmptH)F2H·tu, 4,6-dimethyl-2-sulfanylidene-2,3-dihydropyrimidin-1-ium bromide, C6H9N2S+·Br− or (dmptH)Br, and 4,6-dimethyl-2-sulfanylidene-2,3-dihydropyrimidin-1-ium iodide, C6H9N2S+·I− or (dmptH)I. Three HCl derivatives were described previously in the literature, namely, 4,6-dimethyl-2-oxo-2,3-dihydropyrimidin-1-ium chloride, (dmpH)Cl, 4,6-dimethyl-2-sulfanylidene-2,3-dihydropyrimidin-1-ium chloride monohydrate, (dmptH)Cl·H2O, and 4,6-dimethyl-2-sulfanylidene-2,3-dihydropyrimidin-1-ium chloride–thiourea (1/1), (dmptH)Cl·tu. Structural analysis shows that in 9 out of 10 of these compounds, the ions form one-dimensional chains or ribbons stabilized by hydrogen bonds. Only in one compound are parallel planes present. In all the structures, there are charge-assisted N+—H...X − hydrogen bonds, as well as weaker CAr +—H...X − and π+...X − interactions. The structures can be divided into five types according to their hydrogen-bond patterns. All the compounds undergo thermal decomposition at relatively high temperatures (150–300 °C) without melting. Four oxopyrimidinium salts containing a π+...X −...π+ sandwich-like structural motif exhibit luminescent properties.


2013 ◽  
Vol 750-752 ◽  
pp. 1104-1108 ◽  
Author(s):  
Feng Rao Lang ◽  
Li Yan You

The Zn (II) complex [Zn (O2CFcCO2)(H2O)2]H2O was synthesized with ferrocenedicarboxylic acid under mild conditions. Its crystal structure was characterized by elemental analysis, IR data and X-ray diffraction single crystal structure analyses. The Zn (II) coordination units are connected, forming one-dimensional chain. At the meanwhile, the luminescence properties and the electronic properties were determined.


2010 ◽  
Vol 13 (9) ◽  
pp. 1064-1068 ◽  
Author(s):  
Xiao-Qing Yuan ◽  
Mei-Ling Feng ◽  
Jian-Rong Li ◽  
Xiao-Ying Huang

2010 ◽  
Vol 22 (3) ◽  
pp. 264-267
Author(s):  
Zhao Qi-Hua ◽  
Qing-Hua Wang ◽  
Rui-Bin Fang ◽  
Zhi-Da Chen

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