Metal-induced gelation in dipyridyl ureas

Peter Byrne; Gareth O Lloyd; Lucas Applegarth; Kirsty M Anderson; Nigel Clarke; Jonathan W Steed

doi:10.1039/c0nj00278j

Metal-induced gelation in dipyridyl ureas

Peter Byrne, Gareth O Lloyd, Lucas Applegarth, Kirsty M Anderson, Nigel Clarke, Jonathan W Steed

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

99 Citations (Scopus)

Abstract

A series of pyridyl-appended bis(urea) ligands form supramolecular gels in the presence of metal ions (metallogels), particularly copper(II) and silver(I). The gels have been characterised by rheometry and SEM, and the effect of the metal ions on gel strength and morphology examined. The metal-induced gelation is linked to the competition between urea-urea and urea-pyridyl hydrogen bonding interactions. Crystals grown from these gels reveal a wealth of structural information about these systems that can be related to gel structure using powder X-ray diffraction data of their xerogels.

Original language	English
Pages (from-to)	2261-2274
Number of pages	14
Journal	New Journal of Chemistry
Volume	34
Issue number	10
DOIs	https://doi.org/10.1039/c0nj00278j
Publication status	Published - 2010

Keywords

MASS ORGANIC GELATORS
ANION-BINDING
INFRARED TEMPERATURE
SUPRAMOLECULAR GELS
DICARBOXYLIC-ACID
ORGANOGELS
SOLVENTS
COORDINATION
DERIVATIVES
COMPLEXES

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title = "Metal-induced gelation in dipyridyl ureas",

abstract = "A series of pyridyl-appended bis(urea) ligands form supramolecular gels in the presence of metal ions (metallogels), particularly copper(II) and silver(I). The gels have been characterised by rheometry and SEM, and the effect of the metal ions on gel strength and morphology examined. The metal-induced gelation is linked to the competition between urea-urea and urea-pyridyl hydrogen bonding interactions. Crystals grown from these gels reveal a wealth of structural information about these systems that can be related to gel structure using powder X-ray diffraction data of their xerogels.",

keywords = "MASS ORGANIC GELATORS, ANION-BINDING, INFRARED TEMPERATURE, SUPRAMOLECULAR GELS, DICARBOXYLIC-ACID, ORGANOGELS, SOLVENTS, COORDINATION, DERIVATIVES, COMPLEXES",

author = "Peter Byrne and Lloyd, {Gareth O} and Lucas Applegarth and Anderson, {Kirsty M} and Nigel Clarke and Steed, {Jonathan W}",

year = "2010",

doi = "10.1039/c0nj00278j",

language = "English",

volume = "34",

pages = "2261--2274",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "Royal Society of Chemistry",

number = "10",

}

TY - JOUR

T1 - Metal-induced gelation in dipyridyl ureas

AU - Byrne, Peter

AU - Lloyd, Gareth O

AU - Applegarth, Lucas

AU - Anderson, Kirsty M

AU - Clarke, Nigel

AU - Steed, Jonathan W

PY - 2010

Y1 - 2010

N2 - A series of pyridyl-appended bis(urea) ligands form supramolecular gels in the presence of metal ions (metallogels), particularly copper(II) and silver(I). The gels have been characterised by rheometry and SEM, and the effect of the metal ions on gel strength and morphology examined. The metal-induced gelation is linked to the competition between urea-urea and urea-pyridyl hydrogen bonding interactions. Crystals grown from these gels reveal a wealth of structural information about these systems that can be related to gel structure using powder X-ray diffraction data of their xerogels.

AB - A series of pyridyl-appended bis(urea) ligands form supramolecular gels in the presence of metal ions (metallogels), particularly copper(II) and silver(I). The gels have been characterised by rheometry and SEM, and the effect of the metal ions on gel strength and morphology examined. The metal-induced gelation is linked to the competition between urea-urea and urea-pyridyl hydrogen bonding interactions. Crystals grown from these gels reveal a wealth of structural information about these systems that can be related to gel structure using powder X-ray diffraction data of their xerogels.

KW - MASS ORGANIC GELATORS

KW - ANION-BINDING

KW - INFRARED TEMPERATURE

KW - SUPRAMOLECULAR GELS

KW - DICARBOXYLIC-ACID

KW - ORGANOGELS

KW - SOLVENTS

KW - COORDINATION

KW - DERIVATIVES

KW - COMPLEXES

U2 - 10.1039/c0nj00278j

DO - 10.1039/c0nj00278j

M3 - Article

SN - 1144-0546

VL - 34

SP - 2261

EP - 2274

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 10

ER -

Metal-induced gelation in dipyridyl ureas

Abstract

Keywords

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