UNSPECIFIED (2003) A new family of magnetic 2D coordination polymers based on [M-V(CN)(8)](3-) (M = Mo, W) and pre-programmed Cu2+ centres. In: 8th Internatioanal Conference on Molecule-Bases Magnets (ICMM 2002), OCT 05-10, 2002, VALENCIA, SPAIN.

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Abstract

The self-assembly of [M(CN)(8)](3-) (M = Mo, W) anion and polyamine complexes of Cu-II[Cu(tetren)](2+) and [Cu(dien)(H2O)(2)](2+) (tetren = tetraethylenepentamine, dien = diethylenetriamine) in acidic aqueous solution gives (tetrenH(5))(0.8){Cu-4(II)[W-V(CN)(8)](4)}. 7.2H(2)O 1, (tetrenH(5))(0.8){Cu-4(II)[Mo-V(CN)(8)](4)}.7.2H(2)O 2, (dienH(3)){Cu-3(II)[W-V(CN8](3)}.4H(2)O 3 and (dienH(3)){Cu-3(II)[Mo-V(CN)(8)](3)}. 4H(2)O 4 2D coordination polymers. All compounds are structure-related: the crystal structures of isomorphous 1-2 and 3-4, respectively, consist of double-layered cyano-bridged {Cu-II[W-V(CN)(8)](-)}(n) square grid backbones and non-coordinated fully protonated polyamine countercations as well as H2O molecules located between the sheets. The magnetic measurements reveal long range ferromagnetic ordering with sharp phase transitions at T-C in range 28-37 K and coercivity in range 30-225 Oe at liquid helium temperature, T = 4.3 K. (C) 2003 Elsevier Science Ltd. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	POLYHEDRON
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
ISSN:	0277-5387
Date:	15 July 2003
Volume:	22
Number:	14-17
Number of Pages:	8
Page Range:	pp. 2183-2190
Publication Status:	Published
Title of Event:	8th Internatioanal Conference on Molecule-Bases Magnets (ICMM 2002)
Location of Event:	VALENCIA, SPAIN
Date(s) of Event:	OCT 05-10, 2002
URI:	http://wrap.warwick.ac.uk/id/eprint/9451

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