Determination of the equilibrium constant for binding hydroxide to tetraazamacrocyclic-Nickel(II) complexes

Nusrallah Jubran; Dan Meyerstein

doi:10.1016/S0020-1693(00)81632-1

Determination of the equilibrium constant for binding hydroxide to tetraazamacrocyclic-Nickel(II) complexes

Nusrallah Jubran
, Dan Meyerstein

Department of Chemistry

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

8 Scopus citations

Abstract

The pK_b for the equilibria NiL(OH)⁺ ⇄ NiL²⁺ + OH^- for L1,4,7,10-tetraazacyclotridecane, 1,4,8, 12-tetraazacyclopentadecane, C-β-racemic-5,7,7,12, 14,14-hexamethyl-l,4,8,11-tetraazacyclotetradecane and C-β-racemic-1,4,5,7,7,8,11,12,14,14,-decamethyl- 1,4,8,112-tetraazacyclotetradecane are 0.95, 1.9, 0.2 and 0.65 respectively. The results are compared with data for analogous complexes reported earlier. The results indicate that the main factors affecting these equilibrium constants are the in plane ligand field strengths of the square planar complexes and steric factors.

Original language	English
Pages (from-to)	149-151
Number of pages	3
Journal	Inorganica Chimica Acta
Volume	122
Issue number	2
DOIs	https://doi.org/10.1016/S0020-1693(00)81632-1
State	Published - 15 Dec 1986

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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@article{d79687b417d143a5a9cff22fa0aca965,

title = "Determination of the equilibrium constant for binding hydroxide to tetraazamacrocyclic-Nickel(II) complexes",

abstract = "The pKb for the equilibria NiL(OH)+ ⇄ NiL2+ + OH- for L1,4,7,10-tetraazacyclotridecane, 1,4,8, 12-tetraazacyclopentadecane, C-β-racemic-5,7,7,12, 14,14-hexamethyl-l,4,8,11-tetraazacyclotetradecane and C-β-racemic-1,4,5,7,7,8,11,12,14,14,-decamethyl- 1,4,8,112-tetraazacyclotetradecane are 0.95, 1.9, 0.2 and 0.65 respectively. The results are compared with data for analogous complexes reported earlier. The results indicate that the main factors affecting these equilibrium constants are the in plane ligand field strengths of the square planar complexes and steric factors.",

author = "Nusrallah Jubran and Dan Meyerstein",

year = "1986",

month = dec,

day = "15",

doi = "10.1016/S0020-1693(00)81632-1",

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journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - Determination of the equilibrium constant for binding hydroxide to tetraazamacrocyclic-Nickel(II) complexes

AU - Jubran, Nusrallah

AU - Meyerstein, Dan

PY - 1986/12/15

Y1 - 1986/12/15

N2 - The pKb for the equilibria NiL(OH)+ ⇄ NiL2+ + OH- for L1,4,7,10-tetraazacyclotridecane, 1,4,8, 12-tetraazacyclopentadecane, C-β-racemic-5,7,7,12, 14,14-hexamethyl-l,4,8,11-tetraazacyclotetradecane and C-β-racemic-1,4,5,7,7,8,11,12,14,14,-decamethyl- 1,4,8,112-tetraazacyclotetradecane are 0.95, 1.9, 0.2 and 0.65 respectively. The results are compared with data for analogous complexes reported earlier. The results indicate that the main factors affecting these equilibrium constants are the in plane ligand field strengths of the square planar complexes and steric factors.

AB - The pKb for the equilibria NiL(OH)+ ⇄ NiL2+ + OH- for L1,4,7,10-tetraazacyclotridecane, 1,4,8, 12-tetraazacyclopentadecane, C-β-racemic-5,7,7,12, 14,14-hexamethyl-l,4,8,11-tetraazacyclotetradecane and C-β-racemic-1,4,5,7,7,8,11,12,14,14,-decamethyl- 1,4,8,112-tetraazacyclotetradecane are 0.95, 1.9, 0.2 and 0.65 respectively. The results are compared with data for analogous complexes reported earlier. The results indicate that the main factors affecting these equilibrium constants are the in plane ligand field strengths of the square planar complexes and steric factors.

UR - https://www.scopus.com/pages/publications/0346527240

U2 - 10.1016/S0020-1693(00)81632-1

DO - 10.1016/S0020-1693(00)81632-1

M3 - Article

AN - SCOPUS:0346527240

SN - 0020-1693

VL - 122

SP - 149

EP - 151

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 2

ER -

Determination of the equilibrium constant for binding hydroxide to tetraazamacrocyclic-Nickel(II) complexes

Abstract

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