A comparative study of the high- and low-spin complexes of Ni(II) with two tetraaza dibenzo-substituted macrocycles incorporating 14-membered inner rings has been carried out. The results obtained are also compared with those for the analogous nickel(II) derivatives of 1,4,8,11-tetraazacyclotetradecane. Four X-ray structures of nickel complexes as well as the structure of one free ligand have been determined. These structures taken together with previous X-ray structural data and selected molecular mechanics calculations have enabled a detailed assessment of the effects of spin state and ligand substituent on the hole size and ring conformations adopted by individual complexes. A comparative electrochemical investigation of individual high- and low-spin complexes in the series has been performed.
MACROCYCLIC LIGAND RING SIZE EFFECTS .2. SYNTHETIC, STRUCTURAL AND ELECTROCHEMICAL STUDIES OF THE INTERACTION OF NI-2 WITH 14-MEMBERED TETRAAZA MACROCYCLES CONTAINING FUSED DIBENZO SUBSTITUENTS / K. ADAM, M. ANTOLOVICH, L. BRIGDEN, A. LEONG, L. LINDOY, P. BAILLIE, D. UPPAL, M. MCPARTLIN, B. SHAH, D.M. PROSERPIO, L. FABBRIZZI, P. TASKER. - In: JOURNAL OF THE CHEMICAL SOCIETY DALTON TRANSACTIONS. - ISSN 0300-9246. - :10(1991), pp. 2493-2501.
|Titolo:||MACROCYCLIC LIGAND RING SIZE EFFECTS .2. SYNTHETIC, STRUCTURAL AND ELECTROCHEMICAL STUDIES OF THE INTERACTION OF NI-2 WITH 14-MEMBERED TETRAAZA MACROCYCLES CONTAINING FUSED DIBENZO SUBSTITUENTS|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||1991|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1039/dt9910002493|
|Appare nelle tipologie:||01 - Articolo su periodico|