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Correction: Magnetic properties of the seven-coordinated nanoporous framework material Co(bpy)1.5(NO3)2 (bpy = 4,4′-bipyridine)
Elena
Bartolomé
*a,
Pablo Javier
Alonso
b,
Ana
Arauzo
c,
Javier
Luzón
bd,
Juan
Bartolomé
b,
Carmen
Racles
e and
Constantin
Turta
ef
aEscola Universitària Salesiana de Sarrià, Passeig Sant Joan Bosco 74, 08017-Barcelona, Spain. E-mail: ebartolome@euss.es; Fax: +34-932806642; Tel: +34-932805244
bInstituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 13, 50009 Zaragoza, Spain
cServicio de Medidas Físicas, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
dCentro Universitario de la Defensa, Academia General Militar, Zaragoza, Spain
e“Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi, 700487, Romania
fInstitute of Chemistry, Academy of Sciences of Moldova, Academiei str., 3, MD-2028 Chisinau, Republic of Moldova
First published on 14th June 2018
Abstract
Correction for ‘Magnetic properties of the seven-coordinated nanoporous framework material Co(bpy)1.5(NO3)2 (bpy = 4,4′-bipyridine)’ by Elena Bartolomé et al., Dalton Trans., 2012, 41, 10382–10389.
In our follow-up work on the anisotropy evaluation of Co complexes, we have become aware of an error in a theoretical development included in the ESI, section B, of the aforementioned paper. Namely in the Section titled “Magnetization versus magnetic field and magnetic heat capacity in a random oriented powdered sample of an orthorhombic S = 1/2 system.”
The error stems from the underlined statement in the following text in the ESI section B, which is wrong. Therefore, to correct the text in the ESI, please delete the following lines:
On the other hand, as a consequence of the g-tensor anisotropy, the magnetization is not parallel to the magnetic field but it is directed along the
direction; the components of û′ in the (X, Y, Z) frame are.
| û′ = g−1(û)(gXuX,gYuY,gZuZ) | (B.3) |
 | (B.4) |
In this expression N is the number of paramagnetic entities (NA for the molar magnetization).
In particular, the component parallel to the applied field, M0(û), results to be:
 | (B.5) |
The correct text that should substitute this paragraph is:
On the other hand, as a consequence of the g-tensor anisotropy, the magnetization is not parallel to the magnetic field. Its components in the (X, Y, Z) frame are:
 | (B.3) |
Then the magnetization along a direction fixed by and unitary vector 
is:
 | (B.4) |
in the (X, Y, Z) frame.
In particular, the component parallel to the applied field, M0(û), results to be:
 | (B.5) |
Thus, old eqn (B.5) is substituted by the new eqn (B.5). Moreover, since old eqn (B.8) was a transcription of the wrong old eqn (B.5), after substituting (B.7), the new eqn (B.8) should read as follows:
 | (B.8) |
This error has no bearing on the calculated magnetization curve in the main text, Fig. 4 fitted curve for the M(H) measurements, since the latter fit was done using a numerical approach, and did not use the wrong analytical expression we are correcting now.
The ESI text is now correct and can be used with confidence in the evaluation of magnetization curves for powdered sample of orthorhombic S = 1/2 system.
The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.
| This journal is © The Royal Society of Chemistry 2018 |