摘要 :
The cyclic voltammetric behavior of dioctadecylviologen (DV~(2+)) films of different thickness self-assembled on Ag single crystal electrodes is described. The dependence of the voltammetric behavior upon the amount of viologen de...
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The cyclic voltammetric behavior of dioctadecylviologen (DV~(2+)) films of different thickness self-assembled on Ag single crystal electrodes is described. The dependence of the voltammetric behavior upon the amount of viologen deposited on Ag and upon the scan rate is explained by the interplay of the dimerization steps yielding DV~(2+)-DV~+, DV~+-DV~+, DV~+-DV~0, and the two consecutive electron-transfer steps DV~(2+)+e~- <-> DV~+ and DV~++e~- <-> DV~0.
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摘要 :
The cyclic silver (I) dimer [Ag(m-bitmb)]_2 (PF_6)_2 centre dot 2MeCN of 1,3-bis(imidazolylmethyl)-2,4,6-trimethylbenzene (m-bitmb) was prepared and its structure characterized by X-ray crystallography. An PF_6~- anion is encapsul...
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The cyclic silver (I) dimer [Ag(m-bitmb)]_2 (PF_6)_2 centre dot 2MeCN of 1,3-bis(imidazolylmethyl)-2,4,6-trimethylbenzene (m-bitmb) was prepared and its structure characterized by X-ray crystallography. An PF_6~- anion is encapsulated within the macrocyclic cation [Ag(m-bitmb)]_2~(2+) with weak Ag… F and CH…F interactions. Two types of intermolecular #pi#-#pi# interactions lead to a brick wall network.
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摘要 :
Tetra-armed cyclen (1) bearing two 4-(4'-pyridyl)benzyl and two 3,5-difluorobenzyl groups and its Ag+ complexes were prepared and structurally characterized. The complexes formed between 1 and Ag+ undergoes a reversible structural...
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Tetra-armed cyclen (1) bearing two 4-(4'-pyridyl)benzyl and two 3,5-difluorobenzyl groups and its Ag+ complexes were prepared and structurally characterized. The complexes formed between 1 and Ag+ undergoes a reversible structural transformation between a 2:2 dimeric complex and a 3:5 pentacyclic trefoil complex with changes in the Ag+/ 1 molar ratio. It was also revealed that the 3:5 trefoil complex could encapsulate benzene and [D6]benzene selectively in solid-state. The benzene-included structures are stabilized by C-H center dot center dot center dot F-C interactions between the benzene molecule and the ligand molecule.
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