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.
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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 -