Acetocatechol functionalized viologen as polyfunctional material that responds to anion, cation and reductant in aqueous and organic solvents

Qiao, Hui; Bai, Yulin; Zhao, Yongmei; Xing, Feifei; Li, Mingxing; Zhu, Shourong

doi:10.1016/j.arabjc.2018.04.005

Cited by 1 publication

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“…This green color, as expected, is similar to that of the 1:1 catecholate/Fe(III) complex, which is well established in the literature. 4,47 Interaction with other metal chloride complexes cannot be observed from UV−vis of a 0.5 mM H 2 L DMSO solution but can be monitored by a DPV technique. Three well-defined cathodic peaks at −0.33 (E p(1) ), −0.75 (E p(2) ), and −1.26 (Ep(3)) V (vs Ag/AgCl) were observed for 1.0 mM H 2 L in DMSO (Figure 3b).…”

Section: ■ Introductionmentioning

confidence: 99%

Structures and Chromogenic Ion-Pair Recognition of a Catechol-Functionalized 1,8-Anthraquinone Macrocycle in Dimethyl Sulfoxide

2021

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A lariat anthraquinone macrocycle functionalized with catechol (H 2 L) was synthesized via the Mannich reaction. The Mannich base H 2 L can be partially decomposed into L1•3H 2 O and HL1•NO 3 •2H 2 O in the presence of tetrabutylammonium hydroxide/Al(NO 3 ) 3 •9H 2 O in dimethyl sulfoxide (DMSO). Free L1•3H 2 O is essentially coplanar, while protonated HL1•NO 3 • 2H 2 O is highly distorted. Dark-green FeCl 3 •H 2 L•2H 2 O powder and Fe 2 (HL) 2 Cl 4 crystal can be isolated from ethanol (C 2 H 5 OH) in high/low H 2 L concentration. Anthraquinone in H 2 L is essentially coplanar but distorted in Fe 2 (HL) 2 Cl 4 . The Fe(III) ion in Fe 2 (HL) 2 Cl 4 adopts a less common fivecoordination with three catecholate O and two Cl atoms in the dimer. The distortion of inbound CO is much higher than that of outbound CO in anthraquinone in all of these compounds. H 2 L responds to chlorides of

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Section: ■ Introductionmentioning

confidence: 99%