Anion-Coordination-Driven Assembly of Chiral Quadruple and Single Helices Controlled by Countercations

Boyang Li; Bo Zheng; Wenyao Zhang; Dan Zhang; Xiao Juan Yang; Biao Wu

doi:10.1021/acs.cgd.9b00982

Anion-Coordination-Driven Assembly of Chiral Quadruple and Single Helices Controlled by Countercations

Boyang Li
, Bo Zheng
, Wenyao Zhang
, Dan Zhang
, Xiao Juan Yang
, Biao Wu^*

^*Corresponding author for this work

Northwest University China

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

7 Citations (Scopus)

Abstract

Enantiopure helical assemblies were constructed by chiral C₂-symmetric bis-bis(urea) ligands (L^S/R) with phosphate or hydrogen phosphate anion, which is dictated by the countercation. In the presence of smaller cations (TMA⁺ or TEA⁺), the chiral ligands coordinate to dihydrated phosphate to form homochiral quadruple helicates (TMA)₆[(PO₄·2H₂O)₂L^S/R ₄]. However, when larger cations (TPA⁺ or TBA⁺) were used, the ligand tends to assemble with monohydrated hydrogen phosphate ions into infinite single helices (TPA)_2n[(HPO₄·H₂O)L^S/R]_n or (TBA)_2n[(HPO₄·H₂O)L^S/R]_n. The predisposed point chirality next to the anion binding center in the ligands has a profound impact on the resulting assemblies, and their chirality is manipulated in a predictable manner.

Original language	English
Pages (from-to)	6527-6533
Number of pages	7
Journal	Crystal Growth and Design
Volume	19
Issue number	11
DOIs	https://doi.org/10.1021/acs.cgd.9b00982
Publication status	Published - 6 Nov 2019
Externally published	Yes

Access to Document

10.1021/acs.cgd.9b00982

Cite this

@article{eab241c6962c4886a56bfe8485efd6e1,

title = "Anion-Coordination-Driven Assembly of Chiral Quadruple and Single Helices Controlled by Countercations",

abstract = "Enantiopure helical assemblies were constructed by chiral C2-symmetric bis-bis(urea) ligands (LS/R) with phosphate or hydrogen phosphate anion, which is dictated by the countercation. In the presence of smaller cations (TMA+ or TEA+), the chiral ligands coordinate to dihydrated phosphate to form homochiral quadruple helicates (TMA)6[(PO4·2H2O)2LS/R 4]. However, when larger cations (TPA+ or TBA+) were used, the ligand tends to assemble with monohydrated hydrogen phosphate ions into infinite single helices (TPA)2n[(HPO4·H2O)LS/R]n or (TBA)2n[(HPO4·H2O)LS/R]n. The predisposed point chirality next to the anion binding center in the ligands has a profound impact on the resulting assemblies, and their chirality is manipulated in a predictable manner.",

author = "Boyang Li and Bo Zheng and Wenyao Zhang and Dan Zhang and Yang, \{Xiao Juan\} and Biao Wu",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = nov,

day = "6",

doi = "10.1021/acs.cgd.9b00982",

language = "English",

volume = "19",

pages = "6527--6533",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "11",

}

TY - JOUR

T1 - Anion-Coordination-Driven Assembly of Chiral Quadruple and Single Helices Controlled by Countercations

AU - Li, Boyang

AU - Zheng, Bo

AU - Zhang, Wenyao

AU - Zhang, Dan

AU - Yang, Xiao Juan

AU - Wu, Biao

PY - 2019/11/6

Y1 - 2019/11/6

N2 - Enantiopure helical assemblies were constructed by chiral C2-symmetric bis-bis(urea) ligands (LS/R) with phosphate or hydrogen phosphate anion, which is dictated by the countercation. In the presence of smaller cations (TMA+ or TEA+), the chiral ligands coordinate to dihydrated phosphate to form homochiral quadruple helicates (TMA)6[(PO4·2H2O)2LS/R 4]. However, when larger cations (TPA+ or TBA+) were used, the ligand tends to assemble with monohydrated hydrogen phosphate ions into infinite single helices (TPA)2n[(HPO4·H2O)LS/R]n or (TBA)2n[(HPO4·H2O)LS/R]n. The predisposed point chirality next to the anion binding center in the ligands has a profound impact on the resulting assemblies, and their chirality is manipulated in a predictable manner.

AB - Enantiopure helical assemblies were constructed by chiral C2-symmetric bis-bis(urea) ligands (LS/R) with phosphate or hydrogen phosphate anion, which is dictated by the countercation. In the presence of smaller cations (TMA+ or TEA+), the chiral ligands coordinate to dihydrated phosphate to form homochiral quadruple helicates (TMA)6[(PO4·2H2O)2LS/R 4]. However, when larger cations (TPA+ or TBA+) were used, the ligand tends to assemble with monohydrated hydrogen phosphate ions into infinite single helices (TPA)2n[(HPO4·H2O)LS/R]n or (TBA)2n[(HPO4·H2O)LS/R]n. The predisposed point chirality next to the anion binding center in the ligands has a profound impact on the resulting assemblies, and their chirality is manipulated in a predictable manner.

UR - https://www.scopus.com/pages/publications/85073168872

U2 - 10.1021/acs.cgd.9b00982

DO - 10.1021/acs.cgd.9b00982

M3 - Article

AN - SCOPUS:85073168872

SN - 1528-7483

VL - 19

SP - 6527

EP - 6533

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 11

ER -

Anion-Coordination-Driven Assembly of Chiral Quadruple and Single Helices Controlled by Countercations

Abstract

Access to Document

Other files and links

Fingerprint

Cite this