Enantiomer separation of tris(2,2'-bipyridine)ruthenium(II): Interaction of a D3-symmetric cation with a C2-symmetric anion

Rakesh Puttreddy; James A. Hutchison; Yuri Gorodetski; Jack Harrowfield; Kari Rissanen

doi:10.1021/acs.cgd.5b00053

Enantiomer separation of tris(2,2'-bipyridine)ruthenium(II): Interaction of a D₃-symmetric cation with a C₂-symmetric anion

Rakesh Puttreddy
, James A. Hutchison
, Yuri Gorodetski
, Jack Harrowfield
, Kari Rissanen

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

Abstract

A compound widely used in the separation of the enantiomers of Δ,Λ-[Ru(bipy)₃]²⁺ (bipy = 2,2'-bipyridine) and originally described as "a curious lattice compound" with the formula Δ-[Ru(bipy)₃]₃[Sb₂(R,R-tart)₂]₂I₂·18H₂O (tart = tetradeprotonated, carboxyl and hydroxyl, tartaric acid anion) has been crystallographically characterized as this species with a slightly higher degree of hydration (19.5H₂O). The crystal lattice has a layered structure in which sheets containing Δ-[Ru(bipy)₃]²⁺ cations and iodide anions alternate with those containing [Sb₂(R,R-tart)₂]^2- anions and water. The role of the iodide ions, which lie in pseudohexagonal cavities formed by the array of three inequivalent but very similar Δ-[Ru(bipy)₃]²⁺ cations, all having their C₃ axes directed very close to perpendicular to the sheet, appears to be to favor the orientation of the maximum number of CH units toward the [Sb₂(R,R-tart)₂]^2- entities and to engender formation of (Δ-[Ru(bipy)₃]²⁺)₃([Sb₂(R,R-tart)₂]^2-)₂ groups optimizing the association of the D₃-symmetric cations with the C₂-symmetric anionic resolving agent. This may explain the known superiority of the resolution of Δ,Λ-[Ru(bipy)₃]²⁺ with the anion mixture of I^- and [Sb₂(R,R-tart)₂]^2- over that with just [Sb₂(R,R-tart)₂]^2- alone.

Original language	English
Pages (from-to)	1559-1563
Number of pages	5
Journal	Crystal Growth and Design
Volume	15
Issue number	4
DOIs	https://doi.org/10.1021/acs.cgd.5b00053
State	Published - 1 Apr 2015
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1021/acs.cgd.5b00053

Cite this

@article{70bb1f3ebbee4a3ba706aa63e5fc6ad7,

title = "Enantiomer separation of tris(2,2'-bipyridine)ruthenium(II): Interaction of a D3-symmetric cation with a C2-symmetric anion",

abstract = "A compound widely used in the separation of the enantiomers of Δ,Λ-[Ru(bipy)3]2+ (bipy = 2,2'-bipyridine) and originally described as {"}a curious lattice compound{"} with the formula Δ-[Ru(bipy)3]3[Sb2(R,R-tart)2]2I2·18H2O (tart = tetradeprotonated, carboxyl and hydroxyl, tartaric acid anion) has been crystallographically characterized as this species with a slightly higher degree of hydration (19.5H2O). The crystal lattice has a layered structure in which sheets containing Δ-[Ru(bipy)3]2+ cations and iodide anions alternate with those containing [Sb2(R,R-tart)2]2- anions and water. The role of the iodide ions, which lie in pseudohexagonal cavities formed by the array of three inequivalent but very similar Δ-[Ru(bipy)3]2+ cations, all having their C3 axes directed very close to perpendicular to the sheet, appears to be to favor the orientation of the maximum number of CH units toward the [Sb2(R,R-tart)2]2- entities and to engender formation of (Δ-[Ru(bipy)3]2+)3([Sb2(R,R-tart)2]2-)2 groups optimizing the association of the D3-symmetric cations with the C2-symmetric anionic resolving agent. This may explain the known superiority of the resolution of Δ,Λ-[Ru(bipy)3]2+ with the anion mixture of I- and [Sb2(R,R-tart)2]2- over that with just [Sb2(R,R-tart)2]2- alone.",

author = "Rakesh Puttreddy and Hutchison, \{James A.\} and Yuri Gorodetski and Jack Harrowfield and Kari Rissanen",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = apr,

day = "1",

doi = "10.1021/acs.cgd.5b00053",

language = "الإنجليزيّة",

volume = "15",

pages = "1559--1563",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Enantiomer separation of tris(2,2'-bipyridine)ruthenium(II)

T2 - Interaction of a D3-symmetric cation with a C2-symmetric anion

AU - Puttreddy, Rakesh

AU - Hutchison, James A.

AU - Gorodetski, Yuri

AU - Harrowfield, Jack

AU - Rissanen, Kari

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A compound widely used in the separation of the enantiomers of Δ,Λ-[Ru(bipy)3]2+ (bipy = 2,2'-bipyridine) and originally described as "a curious lattice compound" with the formula Δ-[Ru(bipy)3]3[Sb2(R,R-tart)2]2I2·18H2O (tart = tetradeprotonated, carboxyl and hydroxyl, tartaric acid anion) has been crystallographically characterized as this species with a slightly higher degree of hydration (19.5H2O). The crystal lattice has a layered structure in which sheets containing Δ-[Ru(bipy)3]2+ cations and iodide anions alternate with those containing [Sb2(R,R-tart)2]2- anions and water. The role of the iodide ions, which lie in pseudohexagonal cavities formed by the array of three inequivalent but very similar Δ-[Ru(bipy)3]2+ cations, all having their C3 axes directed very close to perpendicular to the sheet, appears to be to favor the orientation of the maximum number of CH units toward the [Sb2(R,R-tart)2]2- entities and to engender formation of (Δ-[Ru(bipy)3]2+)3([Sb2(R,R-tart)2]2-)2 groups optimizing the association of the D3-symmetric cations with the C2-symmetric anionic resolving agent. This may explain the known superiority of the resolution of Δ,Λ-[Ru(bipy)3]2+ with the anion mixture of I- and [Sb2(R,R-tart)2]2- over that with just [Sb2(R,R-tart)2]2- alone.

AB - A compound widely used in the separation of the enantiomers of Δ,Λ-[Ru(bipy)3]2+ (bipy = 2,2'-bipyridine) and originally described as "a curious lattice compound" with the formula Δ-[Ru(bipy)3]3[Sb2(R,R-tart)2]2I2·18H2O (tart = tetradeprotonated, carboxyl and hydroxyl, tartaric acid anion) has been crystallographically characterized as this species with a slightly higher degree of hydration (19.5H2O). The crystal lattice has a layered structure in which sheets containing Δ-[Ru(bipy)3]2+ cations and iodide anions alternate with those containing [Sb2(R,R-tart)2]2- anions and water. The role of the iodide ions, which lie in pseudohexagonal cavities formed by the array of three inequivalent but very similar Δ-[Ru(bipy)3]2+ cations, all having their C3 axes directed very close to perpendicular to the sheet, appears to be to favor the orientation of the maximum number of CH units toward the [Sb2(R,R-tart)2]2- entities and to engender formation of (Δ-[Ru(bipy)3]2+)3([Sb2(R,R-tart)2]2-)2 groups optimizing the association of the D3-symmetric cations with the C2-symmetric anionic resolving agent. This may explain the known superiority of the resolution of Δ,Λ-[Ru(bipy)3]2+ with the anion mixture of I- and [Sb2(R,R-tart)2]2- over that with just [Sb2(R,R-tart)2]2- alone.

UR - https://www.scopus.com/pages/publications/84926375541

U2 - 10.1021/acs.cgd.5b00053

DO - 10.1021/acs.cgd.5b00053

M3 - مقالة

SN - 1528-7483

VL - 15

SP - 1559

EP - 1563

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 4

ER -

Enantiomer separation of tris(2,2'-bipyridine)ruthenium(II): Interaction of a D₃-symmetric cation with a C₂-symmetric anion

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this