Anion-Coordination-Assisted Assembly of Supramolecular Charge-Transfer Complexes Based on Tris(urea) Ligands

Dan Zhang; Le Kai Hou; Qiang Zhang; Jia Wei He; Hong Jian Feng; Frank Würthner; Xiao Juan Yang; Biao Wu

doi:10.1002/chem.201905021

Anion-Coordination-Assisted Assembly of Supramolecular Charge-Transfer Complexes Based on Tris(urea) Ligands

Dan Zhang, Le Kai Hou, Qiang Zhang, Jia Wei He, Hong Jian Feng, Frank Würthner, Xiao Juan Yang, Biao Wu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Charge-transfer (CT) complexes, formed by noncovalent bonding between electron-rich (donor, D) and electron-deficient (acceptor, A) molecules (or moieties) have attracted considerable attention due to their fascinating structures and potential applications. Herein, we demonstrate that anion coordination is a promising strategy to promote CT complex formation between anion-binding, electron-rich tris(urea) donor ligands (D) and electron-deficient viologen cation acceptors (A), which form co-crystals featuring infinite ⋅⋅⋅DADA⋅⋅⋅ or discrete (circular DADA or three-decker DAD) π-stacking interactions. These CT complexes were studied by X-ray diffraction, UV/Vis spectroscopy, electric conductivity measurements, charge displacement curve (CDC) calculations, and DFT computations.

Original language	English
Pages (from-to)	1414-1421
Number of pages	8
Journal	Chemistry - A European Journal
Volume	26
Issue number	6
DOIs	https://doi.org/10.1002/chem.201905021
Publication status	Published - 27 Jan 2020
Externally published	Yes

Keywords

anions
charge transfer
oligo(urea) ligands
pi interactions
sulfate

Access to Document

10.1002/chem.201905021

Cite this

@article{73d3504ca1924321b8f87419d34fd14f,

title = "Anion-Coordination-Assisted Assembly of Supramolecular Charge-Transfer Complexes Based on Tris(urea) Ligands",

abstract = "Charge-transfer (CT) complexes, formed by noncovalent bonding between electron-rich (donor, D) and electron-deficient (acceptor, A) molecules (or moieties) have attracted considerable attention due to their fascinating structures and potential applications. Herein, we demonstrate that anion coordination is a promising strategy to promote CT complex formation between anion-binding, electron-rich tris(urea) donor ligands (D) and electron-deficient viologen cation acceptors (A), which form co-crystals featuring infinite ⋅⋅⋅DADA⋅⋅⋅ or discrete (circular DADA or three-decker DAD) π-stacking interactions. These CT complexes were studied by X-ray diffraction, UV/Vis spectroscopy, electric conductivity measurements, charge displacement curve (CDC) calculations, and DFT computations.",

keywords = "anions, charge transfer, oligo(urea) ligands, pi interactions, sulfate",

author = "Dan Zhang and Hou, {Le Kai} and Qiang Zhang and He, {Jia Wei} and Feng, {Hong Jian} and Frank W{\"u}rthner and Yang, {Xiao Juan} and Biao Wu",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = jan,

day = "27",

doi = "10.1002/chem.201905021",

language = "English",

volume = "26",

pages = "1414--1421",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "Wiley-VCH Verlag",

number = "6",

}

TY - JOUR

T1 - Anion-Coordination-Assisted Assembly of Supramolecular Charge-Transfer Complexes Based on Tris(urea) Ligands

AU - Zhang, Dan

AU - Hou, Le Kai

AU - Zhang, Qiang

AU - He, Jia Wei

AU - Feng, Hong Jian

AU - Würthner, Frank

AU - Yang, Xiao Juan

AU - Wu, Biao

PY - 2020/1/27

Y1 - 2020/1/27

N2 - Charge-transfer (CT) complexes, formed by noncovalent bonding between electron-rich (donor, D) and electron-deficient (acceptor, A) molecules (or moieties) have attracted considerable attention due to their fascinating structures and potential applications. Herein, we demonstrate that anion coordination is a promising strategy to promote CT complex formation between anion-binding, electron-rich tris(urea) donor ligands (D) and electron-deficient viologen cation acceptors (A), which form co-crystals featuring infinite ⋅⋅⋅DADA⋅⋅⋅ or discrete (circular DADA or three-decker DAD) π-stacking interactions. These CT complexes were studied by X-ray diffraction, UV/Vis spectroscopy, electric conductivity measurements, charge displacement curve (CDC) calculations, and DFT computations.

AB - Charge-transfer (CT) complexes, formed by noncovalent bonding between electron-rich (donor, D) and electron-deficient (acceptor, A) molecules (or moieties) have attracted considerable attention due to their fascinating structures and potential applications. Herein, we demonstrate that anion coordination is a promising strategy to promote CT complex formation between anion-binding, electron-rich tris(urea) donor ligands (D) and electron-deficient viologen cation acceptors (A), which form co-crystals featuring infinite ⋅⋅⋅DADA⋅⋅⋅ or discrete (circular DADA or three-decker DAD) π-stacking interactions. These CT complexes were studied by X-ray diffraction, UV/Vis spectroscopy, electric conductivity measurements, charge displacement curve (CDC) calculations, and DFT computations.

KW - anions

KW - charge transfer

KW - oligo(urea) ligands

KW - pi interactions

KW - sulfate

UR - http://www.scopus.com/inward/record.url?scp=85078657722&partnerID=8YFLogxK

U2 - 10.1002/chem.201905021

DO - 10.1002/chem.201905021

M3 - Article

C2 - 31762095

AN - SCOPUS:85078657722

SN - 0947-6539

VL - 26

SP - 1414

EP - 1421

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 6

ER -

Anion-Coordination-Assisted Assembly of Supramolecular Charge-Transfer Complexes Based on Tris(urea) Ligands

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this