Comparative stability constants for metal ions with tetraazamacrocycles of various ring sizes carrying a single amine or carboxylate pendant group

Yakup Baran; Anne Bayada; Geoffrey A Lawrance; Peter Lye; Marcel Maeder; Eric Wilkes

doi:10.1023/A:1023632920221

Comparative stability constants for metal ions with tetraazamacrocycles of various ring sizes carrying a single amine or carboxylate pendant group

Yakup Baran, Anne Bayada, Geoffrey A Lawrance, Peter Lye, Marcel Maeder, Eric Wilkes

Chemistry

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

6 Citations (Scopus)

Abstract

Acid dissociation constants for a series of tetraazamonocycloalkanes of {13}-{15} membered ring sizes, as well as for a related 'reinforced' {15R} tetraazabicycloalkane, each with one primary amine or carboxylate C-pendant, are reported. Further, formation constants with the metal ions Zn^II, Cd^II, Pb^II, Hg^II, Mn^II and Co^II have been determined. The ligands differ in their selection of metal ions, reflected in the formation constants for 1:1 complexation (KML). Differences arise in part from the increasing ring size or rigidity and also from the availability of potential pendant O-donors versus N-donors in stepping from amine to carboxylate pendant lignads, implying a role for the bendants in binding the metal ions.

Original language	English
Pages (from-to)	460-463
Journal	Transition Metal Chemistry
Volume	28
Issue number	4
DOIs	https://doi.org/10.1023/A:1023632920221
Publication status	Published - 31 Dec 2003

Keywords

Transition Metal Chemistry
Inorganic Chemistry
Chemical Thermodynamics and Energetics

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https://hdl.handle.net/1959.11/3177

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title = "Comparative stability constants for metal ions with tetraazamacrocycles of various ring sizes carrying a single amine or carboxylate pendant group",

abstract = "Acid dissociation constants for a series of tetraazamonocycloalkanes of \{13\}-\{15\} membered ring sizes, as well as for a related 'reinforced' \{15R\} tetraazabicycloalkane, each with one primary amine or carboxylate C-pendant, are reported. Further, formation constants with the metal ions Zn\textasciicircum{}II, Cd\textasciicircum{}II, Pb\textasciicircum{}II, Hg\textasciicircum{}II, Mn\textasciicircum{}II and Co\textasciicircum{}II have been determined. The ligands differ in their selection of metal ions, reflected in the formation constants for 1:1 complexation (KML). Differences arise in part from the increasing ring size or rigidity and also from the availability of potential pendant O-donors versus N-donors in stepping from amine to carboxylate pendant lignads, implying a role for the bendants in binding the metal ions.",

keywords = "Transition Metal Chemistry, Inorganic Chemistry, Chemical Thermodynamics and Energetics",

author = "Yakup Baran and Anne Bayada and Lawrance, \{Geoffrey A\} and Peter Lye and Marcel Maeder and Eric Wilkes",

year = "2003",

month = dec,

day = "31",

doi = "10.1023/A:1023632920221",

language = "English",

volume = "28",

pages = "460--463",

journal = "Transition Metal Chemistry",

issn = "0340-4285",

publisher = "Kluwer Academic Publishers",

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TY - JOUR

T1 - Comparative stability constants for metal ions with tetraazamacrocycles of various ring sizes carrying a single amine or carboxylate pendant group

AU - Baran, Yakup

AU - Bayada, Anne

AU - Lawrance, Geoffrey A

AU - Lye, Peter

AU - Maeder, Marcel

AU - Wilkes, Eric

PY - 2003/12/31

Y1 - 2003/12/31

N2 - Acid dissociation constants for a series of tetraazamonocycloalkanes of {13}-{15} membered ring sizes, as well as for a related 'reinforced' {15R} tetraazabicycloalkane, each with one primary amine or carboxylate C-pendant, are reported. Further, formation constants with the metal ions Zn^II, Cd^II, Pb^II, Hg^II, Mn^II and Co^II have been determined. The ligands differ in their selection of metal ions, reflected in the formation constants for 1:1 complexation (KML). Differences arise in part from the increasing ring size or rigidity and also from the availability of potential pendant O-donors versus N-donors in stepping from amine to carboxylate pendant lignads, implying a role for the bendants in binding the metal ions.

AB - Acid dissociation constants for a series of tetraazamonocycloalkanes of {13}-{15} membered ring sizes, as well as for a related 'reinforced' {15R} tetraazabicycloalkane, each with one primary amine or carboxylate C-pendant, are reported. Further, formation constants with the metal ions Zn^II, Cd^II, Pb^II, Hg^II, Mn^II and Co^II have been determined. The ligands differ in their selection of metal ions, reflected in the formation constants for 1:1 complexation (KML). Differences arise in part from the increasing ring size or rigidity and also from the availability of potential pendant O-donors versus N-donors in stepping from amine to carboxylate pendant lignads, implying a role for the bendants in binding the metal ions.

KW - Transition Metal Chemistry

KW - Inorganic Chemistry

KW - Chemical Thermodynamics and Energetics

UR - https://www.scopus.com/pages/publications/0037526291

U2 - 10.1023/A:1023632920221

DO - 10.1023/A:1023632920221

M3 - Article

SN - 0340-4285

VL - 28

SP - 460

EP - 463

JO - Transition Metal Chemistry

JF - Transition Metal Chemistry

IS - 4

ER -

Comparative stability constants for metal ions with tetraazamacrocycles of various ring sizes carrying a single amine or carboxylate pendant group

Abstract

Keywords

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