EPR and magnetic studies of a novel copper metal organic framework (STAM-I)

H. El Mkami; M. I.H. Mohideen; C. Pal; A. McKinlay; O. Scheimann; R. E. Morris

doi:10.1016/j.cplett.2012.06.012

EPR and magnetic studies of a novel copper metal organic framework (STAM-I)

H. El Mkami
, M. I.H. Mohideen
, C. Pal
, A. McKinlay
, O. Scheimann
, R. E. Morris

Chemistry

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

The magnetic interaction between dinuclear copper (II) in a new copper carboxylate compound, STAM-1, has been investigated by means of EPR and SQUID measurements. The powder EPR spectra, measured at 9.80 and 34.5 GHz and at different temperatures, show the typical lines of the triplet state (S = 1), attributed to Cu ²⁺-Cu ²⁺ dimers, in addition of a temperature dependent central lines. The zero field splitting parameters obtained are |D _obs| = 0.337 cm ^-1 and E ∼ 0. Magnetic susceptibility data, performed in the range 1.8-300 K, shows a strong antiferromagnetic exchange coupling between the Cu ²⁺ centers in the paddle-wheel units with the exchange coupling constant 2J = -334 ± 4 cm ^-1.

Original language	British English
Pages (from-to)	17-21
Number of pages	5
Journal	Chemical Physics Letters
Volume	544
DOIs	https://doi.org/10.1016/j.cplett.2012.06.012
State	Published - 20 Aug 2012

Access to Document

10.1016/j.cplett.2012.06.012

OpenUrl availability

Full text

Cite this

@article{525f988104164da999946421af60fa8f,

title = "EPR and magnetic studies of a novel copper metal organic framework (STAM-I)",

abstract = "The magnetic interaction between dinuclear copper (II) in a new copper carboxylate compound, STAM-1, has been investigated by means of EPR and SQUID measurements. The powder EPR spectra, measured at 9.80 and 34.5 GHz and at different temperatures, show the typical lines of the triplet state (S = 1), attributed to Cu 2+-Cu 2+ dimers, in addition of a temperature dependent central lines. The zero field splitting parameters obtained are |D obs| = 0.337 cm -1 and E ∼ 0. Magnetic susceptibility data, performed in the range 1.8-300 K, shows a strong antiferromagnetic exchange coupling between the Cu 2+ centers in the paddle-wheel units with the exchange coupling constant 2J = -334 ± 4 cm -1.",

author = "\{El Mkami\}, H. and Mohideen, \{M. I.H.\} and C. Pal and A. McKinlay and O. Scheimann and Morris, \{R. E.\}",

year = "2012",

month = aug,

day = "20",

doi = "10.1016/j.cplett.2012.06.012",

language = "British English",

volume = "544",

pages = "17--21",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - EPR and magnetic studies of a novel copper metal organic framework (STAM-I)

AU - El Mkami, H.

AU - Mohideen, M. I.H.

AU - Pal, C.

AU - McKinlay, A.

AU - Scheimann, O.

AU - Morris, R. E.

PY - 2012/8/20

Y1 - 2012/8/20

N2 - The magnetic interaction between dinuclear copper (II) in a new copper carboxylate compound, STAM-1, has been investigated by means of EPR and SQUID measurements. The powder EPR spectra, measured at 9.80 and 34.5 GHz and at different temperatures, show the typical lines of the triplet state (S = 1), attributed to Cu 2+-Cu 2+ dimers, in addition of a temperature dependent central lines. The zero field splitting parameters obtained are |D obs| = 0.337 cm -1 and E ∼ 0. Magnetic susceptibility data, performed in the range 1.8-300 K, shows a strong antiferromagnetic exchange coupling between the Cu 2+ centers in the paddle-wheel units with the exchange coupling constant 2J = -334 ± 4 cm -1.

AB - The magnetic interaction between dinuclear copper (II) in a new copper carboxylate compound, STAM-1, has been investigated by means of EPR and SQUID measurements. The powder EPR spectra, measured at 9.80 and 34.5 GHz and at different temperatures, show the typical lines of the triplet state (S = 1), attributed to Cu 2+-Cu 2+ dimers, in addition of a temperature dependent central lines. The zero field splitting parameters obtained are |D obs| = 0.337 cm -1 and E ∼ 0. Magnetic susceptibility data, performed in the range 1.8-300 K, shows a strong antiferromagnetic exchange coupling between the Cu 2+ centers in the paddle-wheel units with the exchange coupling constant 2J = -334 ± 4 cm -1.

UR - https://www.scopus.com/pages/publications/84864654112

U2 - 10.1016/j.cplett.2012.06.012

DO - 10.1016/j.cplett.2012.06.012

M3 - Article

AN - SCOPUS:84864654112

SN - 0009-2614

VL - 544

SP - 17

EP - 21

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

EPR and magnetic studies of a novel copper metal organic framework (STAM-I)

Abstract

Access to Document

OpenUrl availability

Other files and links

Fingerprint

Cite this