The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate

Lap Yan Chung; Edwin C. Constable; Adrian R. Dale; Muhammed S. Khan; Michael C. Liptrot; Jack Lewis; Paul R. Raithby

doi:10.1039/DT9900001397

The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate

Lap Yan Chung, Edwin C. Constable, Adrian R. Dale, Muhammed S. Khan, Michael C. Liptrot, Jack Lewis, Paul R. Raithby

University of Cambridge

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

Abstract

A range of metal-free quinquedentate macrocyclic ligands incorporating 2,2′-bipyridine or 1,10-phenanthroline donor groups has been prepared by the use of a chromium(III) transient template. The transient template effect is shown to be due to pH effects resulting from the presence of chromium(III) complexes in aqueous solution, rather than a process in which the open-chain ligands become co-ordinated to the metal centre. The crystal and molecular structure of a free macrocyclic ligand is reported, as is the preparation of some chromium(III) complexes of open-chain and macrocyclic complexes.

Original language	English
Pages (from-to)	1397-1404
Number of pages	8
Journal	Journal of the Chemical Society, Dalton Transactions
Issue number	4
DOIs	https://doi.org/10.1039/DT9900001397
Publication status	Published - 1990

ASJC Scopus subject areas

General Chemistry

Access to Document

10.1039/DT9900001397

Fingerprint

Dive into the research topics of 'The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate'. Together they form a unique fingerprint.

Cite this

Chung, L. Y., Constable, E. C., Dale, A. R., Khan, M. S., Liptrot, M. C., Lewis, J., & Raithby, P. R. (1990). The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate. Journal of the Chemical Society, Dalton Transactions, (4), 1397-1404. https://doi.org/10.1039/DT9900001397

The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate. / Chung, Lap Yan; Constable, Edwin C.; Dale, Adrian R. et al.
In: Journal of the Chemical Society, Dalton Transactions, No. 4, 1990, p. 1397-1404.

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

Chung, LY, Constable, EC, Dale, AR, Khan, MS, Liptrot, MC, Lewis, J & Raithby, PR 1990, 'The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate', Journal of the Chemical Society, Dalton Transactions, no. 4, pp. 1397-1404. https://doi.org/10.1039/DT9900001397

Chung LY, Constable EC, Dale AR, Khan MS, Liptrot MC, Lewis J et al. The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate. Journal of the Chemical Society, Dalton Transactions. 1990;(4):1397-1404. doi: 10.1039/DT9900001397

Chung, Lap Yan ; Constable, Edwin C. ; Dale, Adrian R. et al. / The transient template effect : Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate. In: Journal of the Chemical Society, Dalton Transactions. 1990 ; No. 4. pp. 1397-1404.

@article{853ef6580bbd4ee086e48babdceee0ca,

title = "The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate",

abstract = "A range of metal-free quinquedentate macrocyclic ligands incorporating 2,2′-bipyridine or 1,10-phenanthroline donor groups has been prepared by the use of a chromium(III) transient template. The transient template effect is shown to be due to pH effects resulting from the presence of chromium(III) complexes in aqueous solution, rather than a process in which the open-chain ligands become co-ordinated to the metal centre. The crystal and molecular structure of a free macrocyclic ligand is reported, as is the preparation of some chromium(III) complexes of open-chain and macrocyclic complexes.",

author = "Chung, {Lap Yan} and Constable, {Edwin C.} and Dale, {Adrian R.} and Khan, {Muhammed S.} and Liptrot, {Michael C.} and Jack Lewis and Raithby, {Paul R.}",

year = "1990",

doi = "10.1039/DT9900001397",

language = "English",

pages = "1397--1404",

journal = "Journal of the Chemical Society, Dalton Transactions",

issn = "1472-7773",

publisher = "Royal Society of Chemistry",

number = "4",

}

TY - JOUR

T1 - The transient template effect

T2 - Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate

AU - Chung, Lap Yan

AU - Constable, Edwin C.

AU - Dale, Adrian R.

AU - Khan, Muhammed S.

AU - Liptrot, Michael C.

AU - Lewis, Jack

AU - Raithby, Paul R.

PY - 1990

Y1 - 1990

N2 - A range of metal-free quinquedentate macrocyclic ligands incorporating 2,2′-bipyridine or 1,10-phenanthroline donor groups has been prepared by the use of a chromium(III) transient template. The transient template effect is shown to be due to pH effects resulting from the presence of chromium(III) complexes in aqueous solution, rather than a process in which the open-chain ligands become co-ordinated to the metal centre. The crystal and molecular structure of a free macrocyclic ligand is reported, as is the preparation of some chromium(III) complexes of open-chain and macrocyclic complexes.

AB - A range of metal-free quinquedentate macrocyclic ligands incorporating 2,2′-bipyridine or 1,10-phenanthroline donor groups has been prepared by the use of a chromium(III) transient template. The transient template effect is shown to be due to pH effects resulting from the presence of chromium(III) complexes in aqueous solution, rather than a process in which the open-chain ligands become co-ordinated to the metal centre. The crystal and molecular structure of a free macrocyclic ligand is reported, as is the preparation of some chromium(III) complexes of open-chain and macrocyclic complexes.

UR - http://www.scopus.com/inward/record.url?scp=37049080801&partnerID=8YFLogxK

U2 - 10.1039/DT9900001397

DO - 10.1039/DT9900001397

M3 - Article

AN - SCOPUS:37049080801

SN - 1472-7773

SP - 1397

EP - 1404

JO - Journal of the Chemical Society, Dalton Transactions

JF - Journal of the Chemical Society, Dalton Transactions

IS - 4

ER -

The transient template effect: Chromium(III)-directed syntheses of metal-free macrocyclic ligands and crystal structure of 1,11-bis(2′-hydroxyethyl)-4,8;12,16;17,21-trinitrilo-1,2,10,11-tetra- azacyclohenicosa-2,4,6,9,12,14,18,20-octaene hydrochloride tetrahydrate

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this