Research

Structures of 2,4,6-tri-alpha-pyridyl-1,3,5-triazine complexes of the lanthanoid nitrates: A study in the lanthanoid contraction


Reference:

Cotton, S. A., Franckevicius, V., Mahon, M. F., Ooi, L. L., Raithby, P. R. and Teat, S. J., 2006. Structures of 2,4,6-tri-alpha-pyridyl-1,3,5-triazine complexes of the lanthanoid nitrates: A study in the lanthanoid contraction. Polyhedron, 25 (4), pp. 1057-1068.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below.

Abstract

The structures are reported of 20 1:1 complexes formed between 2,4,6-tri-cz-pyridyl-1,3,5-triazine (tptz) and the nitrates of yttrium and the lanthanoids (La-Lu except Pm). The complexes can be divided up into a series of structural types. The majority of the characterised complexes belong to the isostructural family [Ln(tptz)(NO3)(3)(H2O)]center dot 2C(2)H(5)OH (Ln = Y (3), La-Yb (4-16)), which have three bidentate nitrate groups as well as a co-ordinated water molecule, and the metal ion is 10 co-ordinate, whilst a similar lanthanum complex [La(tptz)(NO3)(3)(H2O)]center dot Me2CO (2) has been prepared. Eleven co-ordinate [La(tptz)(NO3)(3)(CH3OH)(2)] (1), which has three bidentate nitrate groups as well as two co-ordinated methanol molecules, is also reported. By varying the solvent used, three different lutetium complexes can be obtained; [Lu(tptz)(NO3)(3)(C2H5OH)]center dot C2H5OH (18) and [Lu(tptz)(NO3)(3)(H2O)]center dot MeCN (19), both featuring two bidentate nitrate groups, a monodentate nitrate group and a co-ordinated solvent molecule, and [Lu(tptz)(NO3)(2)(H2O)(2)]NO3 center dot 3MeOH (20), whose cation contains two bidentate nitrate groups as well as two co-ordinated water molecules. The ytterbium complex [Yb(tptz)(NO3)(3)(C2H5OH)]-C2H5OH (17) is also described. (c) 2005 Elsevier Ltd. All rights reserved.

Details

Item Type Articles
CreatorsCotton, S. A., Franckevicius, V., Mahon, M. F., Ooi, L. L., Raithby, P. R. and Teat, S. J.
DOI10.1046/j.poly.2005.12.012
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code4720
Additional InformationID number: ISI:000236005800032

Export

Actions (login required)

View Item