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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 10
BKCSDE 27(10)
October 20, 2006 

Synthesis, Characterization and Magnetic Properties of a Novel Disulfonate-pillared Copper Hydroxide Cu2(OH)3(DS4)1/2, DS4 = 1,4-Butanedisulfonate
Seong-Hun Park*, Cheol Eui Lee
Anion exchange reaction, Disulfonate, Triangular 2D magnetic system, Magnetism, Inorganic/organic hybrid layered structure
We report the preparation, structure and magnetic properties of a new pillared complex, copper(II) hydroxy-1,4-butanedisulfonate, Cu2(OH)3(O3SC4H8SO3)1/2. The titled compound was obtained by anion exchange, using copper hydroxyl nitrate (Cu2(OH)3NO3) as the starting material. According to the XRD data, this compound exhibits a pillared layered structure with organic layers tilted between the copper hydroxide layers with a tilt angle of 21.8o. FTIR spectroscopy confirms total exchange of nitrate by the sulfonate and indicates that the sulfonate functions are linked to the copper(II) ions with each aliphatic chain bridging the adjacent hydroxide layers. According to the dc and ac magnetic measurements, the title compound is a metamagnet consisting of spin-canted antiferromagnetic layers, with a Neel temperature of 11.8 K.
1587 - 1592
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