Metamagnetic Copper(II) Diphosphonates with Layered Structures

Zheng, Li-Min; Gao, Song; Song, Hui-Hua; Decurtins, Silvio; Jacobson, Allan J.; Quan, Xin (2002). Metamagnetic Copper(II) Diphosphonates with Layered Structures. Chemistry of materials, 14(7), pp. 3143-3147. American Chemical Society 10.1021/cm020204+

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Compounds [NH3(CH2)4NH3]Cu3(hedp)2·2H2O (1) and [NH3(CH2)3NH3]Cu3(hedp)2·3.5H2O (2), where hedp represents 1-hydroxyethylidenediphosphonate, exhibit two-dimensional structures closely related to each other. The anionic layers with composition {Cu3(hedp)2}n2n- contain four- and eight-membered rings assembled from vertex-sharing {CuO4} units and {CPO3} tetrahedra. The protonated diamines and lattice water fill the interlayer spaces. Crystal data for 2:  space group P1̄, a = 8.0315(4), b = 11.3713(6), c = 13.3117(7) Å, α = 97.122(1), β = 103.187(1), γ = 108.668(1)°, V = 1095.5(1) Å3, Z = 2. Magnetic properties of the two compounds have been investigated. Both show typical metamagnetic behaviors at low temperature. The critical field at which the antiferromagnetic ground-state switches to a ferrimagnetic state is ∼48 Oe for 1 and 185 Oe for 2 at about 2 K.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Decurtins, Silvio

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0897-4756

Publisher:

American Chemical Society

Language:

English

Submitter:

Silvio Decurtins

Date Deposited:

20 May 2015 10:57

Last Modified:

21 May 2015 17:27

Publisher DOI:

10.1021/cm020204+

BORIS DOI:

10.7892/boris.68542

URI:

https://boris.unibe.ch/id/eprint/68542

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