Spin-Density Maps for an Oxamido-Bridged Mn(II)Cu(II) Binuclear Compound. Polarized Neutron Diffraction and Theoretical Studies

1996 ◽  
Vol 118 (47) ◽  
pp. 11822-11830 ◽  
Author(s):  
Valery Baron ◽  
Béatrice Gillon ◽  
Olivier Plantevin ◽  
Alain Cousson ◽  
Corine Mathonière ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Spin Density ◽  
Theoretical Studies ◽  
Density Maps ◽  
Polarized Neutron

Spin Density Maps for the Ferrimagnetic Chain Compound MnCu(pba)(H2O)3·2H2O (pba = 1,2-Propylenebis(oxamato)):  Polarized Neutron Diffraction and Theoretical Studies

1997 ◽  
Vol 119 (15) ◽  
pp. 3500-3506 ◽  
Author(s):  
Valéry Baron ◽  
Béatrice Gillon ◽  
Alain Cousson ◽  
Corine Mathonière ◽  
Olivier Kahn ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Spin Density ◽  
Theoretical Studies ◽  
Density Maps ◽  
Polarized Neutron ◽  
Chain Compound

scholarly journals Polarized Neutron Diffraction study of the molecular magnetic anisotropy

2014 ◽  
Vol 70 (a1) ◽  
pp. C278-C278
Author(s):  
Karl Ridier ◽  
Béatrice Gillon ◽  
Arsen Gukasov ◽  
Gregory Chaboussant ◽  
Ana Borta ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Anisotropy ◽  
Spin Density ◽  
Single Molecule ◽  
Structural Parameters ◽  
Inorganic Compounds ◽  
Accurate Determination ◽  
Magnetization Distribution ◽  
Theoretical Studies ◽  
Polarized Neutron

The magnetic anisotropy is a prerequisite for a metal complex to behave as a single-molecule magnet (SMM). Unfortunately, today we do not fully understand the relationships between the local structural parameters and the magnetic anisotropy that results at the molecular level. This is an issue that has become recursive in this area. Out of the synthesis work which is still important, but generates a multiplication of SMMs with frustrating properties, there are various studies to understand these relationships among which most are theoretical studies. In this context, we believe that polarized neutron diffraction (PND) can provide an experimental and complementary point of view to these theoretical studies. PND is indeed well known to allow an accurate determination of the spin density in magnetic compounds and in the field of molecular magnetism it has provided unique information on the pathways and the nature of intra- or intermolecular magnetic coupling [1]. In the case of highly anisotropic paramagnetic materials, where local magnetic moments cannot be aligned by an external magnetic field, that is more tricky, but a method based on local magnetic susceptibility tensor, has been recently developed that allows now analysing the data in this case and obtaining the magnetization distribution [2]. This approach was first used for inorganic compounds. Our idea has been to use this approach to go beyond the reconstruction of spin density to study the magnetic anisotropy in molecular systems. In this paper, we present the results of such an approach applied for the first time to metal complexes that are simple mono and dinuclear cobalt(II) complexes.

Spin density maps in nitroxide-copper(II) complexes. A polarized neutron diffraction determination

1993 ◽  
Vol 115 (9) ◽  
pp. 3610-3617 ◽  
Author(s):  
Eric Ressouche ◽  
Jean Xavier Boucherle ◽  
Beatrice Gillon ◽  
Paul Rey ◽  
Jacques Schweizer
Keyword(s):  
Neutron Diffraction ◽  
Spin Density ◽  
Density Maps ◽  
Diffraction Determination ◽  
Polarized Neutron

The Spin Density Distribution in the Tetracyanoethylene Radical Anion, [TCNE]??, by Single-Crystal Polarized Neutron Diffraction

1994 ◽  
Vol 33 (13) ◽  
pp. 1397-1399 ◽  
Author(s):  
Andrey Zheludev ◽  
Andr� Grand ◽  
Eric Ressouche ◽  
Jacques Schweizer ◽  
Brian G. Morin ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Density Distribution ◽  
Single Crystal ◽  
Spin Density ◽  
Radical Anion ◽  
Spin Density Distribution ◽  
Polarized Neutron
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