Synthesis, structure, and complexation of a large 28-mer macrocycle containing two binding sites for either anions or metal ions

L  Cronin; P A  McGregor; S  Parsons; S  Teat; R O  Gould; V A  White; N J  Long; N  Robertson

doi:10.1021/ic049190v

Synthesis, structure, and complexation of a large 28-mer macrocycle containing two binding sites for either anions or metal ions

L Cronin, P A McGregor, S Parsons, S Teat, R O Gould, V A White, N J Long, N Robertson

School of Chemistry

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

Abstract

The "one-pot" synthesis and characterization of a large 28-mer macrocycle (H4L2) with oxamido units capable of complexing guest ions through oxygen or nitrogen donor atoms is reported. Single-crystal structure determination of H8L2(NO(3))4 and {CU2[H2L2](H2O)(2)}(NO3)(2) demonstrated that the macrocycle contains two sites capable of complexing two nitrate anions or two copper(II) ions, involving a large structural reorganization in the conformation of the macrocyclic framework on coordination of the copper(Il) ions when compared to the nitrate. Electrochemical and magnetic susceptibility measurements on the dinuclear Cu(II) complex and the related mononuclear and trinuclear Cu(II) complexes derived from the related 14-mer macrocycle were carried out and illustrate the role of the oxamido groups in mediating metal-metal interaction and delocalization.

Original language	English
Pages (from-to)	8023-8029
Number of pages	7
Journal	Inorganic Chemistry
Volume	43
Issue number	25
DOIs	https://doi.org/10.1021/ic049190v
Publication status	Published - 13 Dec 2004

Keywords / Materials (for Non-textual outputs)

MAGNETIC-PROPERTIES
CRYSTAL-STRUCTURE
COPPER(III) COMPLEXES
CYCLAM DERIVATIVES
OXAMIDE
LIGANDS
COORDINATION
RECOGNITION
CU

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title = "Synthesis, structure, and complexation of a large 28-mer macrocycle containing two binding sites for either anions or metal ions",

abstract = "The {"}one-pot{"} synthesis and characterization of a large 28-mer macrocycle (H4L2) with oxamido units capable of complexing guest ions through oxygen or nitrogen donor atoms is reported. Single-crystal structure determination of H8L2(NO(3))4 and {CU2[H2L2](H2O)(2)}(NO3)(2) demonstrated that the macrocycle contains two sites capable of complexing two nitrate anions or two copper(II) ions, involving a large structural reorganization in the conformation of the macrocyclic framework on coordination of the copper(Il) ions when compared to the nitrate. Electrochemical and magnetic susceptibility measurements on the dinuclear Cu(II) complex and the related mononuclear and trinuclear Cu(II) complexes derived from the related 14-mer macrocycle were carried out and illustrate the role of the oxamido groups in mediating metal-metal interaction and delocalization.",

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author = "L Cronin and McGregor, {P A} and S Parsons and S Teat and Gould, {R O} and White, {V A} and Long, {N J} and N Robertson",

year = "2004",

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doi = "10.1021/ic049190v",

language = "English",

volume = "43",

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TY - JOUR

T1 - Synthesis, structure, and complexation of a large 28-mer macrocycle containing two binding sites for either anions or metal ions

AU - Cronin, L

AU - McGregor, P A

AU - Parsons, S

AU - Teat, S

AU - Gould, R O

AU - White, V A

AU - Long, N J

AU - Robertson, N

PY - 2004/12/13

Y1 - 2004/12/13

N2 - The "one-pot" synthesis and characterization of a large 28-mer macrocycle (H4L2) with oxamido units capable of complexing guest ions through oxygen or nitrogen donor atoms is reported. Single-crystal structure determination of H8L2(NO(3))4 and {CU2[H2L2](H2O)(2)}(NO3)(2) demonstrated that the macrocycle contains two sites capable of complexing two nitrate anions or two copper(II) ions, involving a large structural reorganization in the conformation of the macrocyclic framework on coordination of the copper(Il) ions when compared to the nitrate. Electrochemical and magnetic susceptibility measurements on the dinuclear Cu(II) complex and the related mononuclear and trinuclear Cu(II) complexes derived from the related 14-mer macrocycle were carried out and illustrate the role of the oxamido groups in mediating metal-metal interaction and delocalization.

AB - The "one-pot" synthesis and characterization of a large 28-mer macrocycle (H4L2) with oxamido units capable of complexing guest ions through oxygen or nitrogen donor atoms is reported. Single-crystal structure determination of H8L2(NO(3))4 and {CU2[H2L2](H2O)(2)}(NO3)(2) demonstrated that the macrocycle contains two sites capable of complexing two nitrate anions or two copper(II) ions, involving a large structural reorganization in the conformation of the macrocyclic framework on coordination of the copper(Il) ions when compared to the nitrate. Electrochemical and magnetic susceptibility measurements on the dinuclear Cu(II) complex and the related mononuclear and trinuclear Cu(II) complexes derived from the related 14-mer macrocycle were carried out and illustrate the role of the oxamido groups in mediating metal-metal interaction and delocalization.

KW - MAGNETIC-PROPERTIES

KW - CRYSTAL-STRUCTURE

KW - COPPER(III) COMPLEXES

KW - CYCLAM DERIVATIVES

KW - OXAMIDE

KW - LIGANDS

KW - COORDINATION

KW - RECOGNITION

KW - CU

U2 - 10.1021/ic049190v

DO - 10.1021/ic049190v

M3 - Article

SN - 0020-1669

VL - 43

SP - 8023

EP - 8029

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 25

ER -

Synthesis, structure, and complexation of a large 28-mer macrocycle containing two binding sites for either anions or metal ions

Abstract

Keywords / Materials (for Non-textual outputs)

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