Title
Hydrogen bonded networks based on lanthanide(III) complexes of N,N '-dimethylurea (DMU): preparation, characterisation, and crystal structures of <tex>$\left[Nd\left(DMU\right)_{6}\right]\left[NdCl_{6}\right]$</tex> and <tex>$\left[Nd\left(NO_{3}\right)_{3}\left(DMU\right)_{3}\right]$</tex> Hydrogen bonded networks based on lanthanide(III) complexes of N,N '-dimethylurea (DMU): preparation, characterisation, and crystal structures of <tex>$\left[Nd\left(DMU\right)_{6}\right]\left[NdCl_{6}\right]$</tex> and <tex>$\left[Nd\left(NO_{3}\right)_{3}\left(DMU\right)_{3}\right]$</tex>
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Oxford ,
Subject
Chemistry
Source (journal)
Polyhedron. - Oxford
Volume/pages
22(2003) :6 , p. 825-835
ISSN
0277-5387
ISI
000181591600004
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In order to examine the possibilities of using lanthanide(III) ions in the crystal engineering of hydrogen bonded coordination complexes, the compounds [Ln(DMU)(6)][LnCl(6)] and [Ln(NO3)(3)(DMU)(3)] (Ln = Pr, Nd, Gd, Er; DMU = N,N'-dimethylurea) have been prepared from the reactions of DMU with the appropriate lanthaniae(III) salts in alcohols. The representative complexes [Nd(DMU)(6)][NdCl6] (2) and [Nd(NO3)(3)(DMU)(3)] (6) have been structurally characterised by single-crystal X-ray studies. The structure of 2 consists of distorted octahedral [Nd(DMU)(6)](3+) and [NdCl6](3-) ions. In the molecules of 6, the Nd(III) ion is in a ninecoordinate, monocapped square antiprismatic geometry, surrounded by three O-bonded DMU ligands and three bidentate chelating nitrate groups. The [Nd(DMU)(6)](3+) cations and [NdCl6](3 -) anions self-assemble to form a hydrogen-bonded 3D architecture in 2. The hydrogen bonding functionalities on the molecules of 6 create also a 3D structure. Two main motifs of interionic/intermolecular hydrogen bonds have been observed: N-H... Cl in 2 and N-H... O(NO3-) in 6; weak C-H... Cl hydrogen bonding interactions are also present in 2. The complexes were characterised by magnetic susceptibilities at room temperature and spectroscopic (IR, far-IR, Raman) techniques. The vibrational data are discussed in terms of the nature of bonding and the known structures of the neodymium(III) complexes. (C) 2003 Elsevier Science Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/d078b9/2502451.pdf
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181591600004&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181591600004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181591600004&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
Handle