Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 8, 2006

Synthesis, structure and magnetic behaviour of dinuclear uranium(iv) complexes with a ‘calixsalophen’ type macrocycle

Author affiliations

Abstract

Treatment of UCl4 with the octadentate tricompartmental ‘calixsalophen’ type macrocycle H4L1 [N,N:N′,N′-bis(2,2′-dihydroxy-3,3′-dimethylidene-5,5′-di-tert-butylbiphenyl)benzene-1,2-diamine] in THF or pyridine gave the complexes [U2L1Cl4] (1) and [U2L1Cl4(py)2] (2), respectively. The crystal structures of 1·4THF and 2·3py are centrosymmetric, the metal atoms occupying the N2O2 cavities with either a pentagonal bipyramidal environment in 1, two Cl atoms being in apical positions, or a dodecahedral environment in 2. Reaction of U(acac)4 (acac = MeCOCHCOMe) with H4L1 in THF did not afford the corresponding acetylacetonate product but gave instead the isomeric complex [U2L1(acac)4] (3), in which one of the two N2O2 cavities is empty, one of the uranium atoms occupying the central O4 site. The dinuclear complex [U2(HL3)(acac)5] (4) was obtained by treating U(acac)4 with H4L1 in pyridine; in this case, the macrocyclic ligand L1 was transformed into its mono(benzimidazole) derivative L3. The eight-coordinate uranium atoms in 3·5THF and 4·2py adopt a distorted square antiprismatic configuration. The magnetic properties of compounds 1 and 3 were investigated.

Graphical abstract: Synthesis, structure and magnetic behaviour of dinuclear uranium(iv) complexes with a ‘calixsalophen’ type macrocycle

Supplementary files

Article information


Submitted
27 Apr 2006
Accepted
02 Jun 2006
First published
16 Jun 2006

New J. Chem., 2006,30, 1220-1227
Article type
Paper

Synthesis, structure and magnetic behaviour of dinuclear uranium(IV) complexes with a ‘calixsalophen’ type macrocycle

L. Salmon, P. Thuéry, E. Rivière, S. Miyamoto, T. Yamato and M. Ephritikhine, New J. Chem., 2006, 30, 1220 DOI: 10.1039/B606035H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements