Insights into the Spin Dynamics of Mononuclear Cerium(III) Single-Molecule Magnets.

Four novel CeIII mononuclear complexes of formulas [Ce(ntfa)3(MeOH)2] (1), [Ce(ntfa)3(5,5'-Me2bipy)] (2), [Ce(ntfa)3(terpy)] (3), and [Ce(ntfa)3(bipy)2] (4), where ntfa = 4,4,4-trifluoro-1-(naphthalen-2-yl)butane-1,3-dionato, 5,5'-Me2bipy = 5,5'-dimethyl-2,2'-dipyridyl, terpy = 2,2':6',2″-terpyridine, and bipy = 2,2'-bipyridine, have been synthesized and structurally characterized with CeIII displaying coordination numbers of 8, 8, 9, and 10, respectively. Magnetic measurements indicate that all the complexes show a field-induced single-ion magnet behavior under a small applied dc field. The magnetic analysis shows the relevance of the different spin relaxation mechanisms in the magnetic relaxation of the CeIII compounds, with special emphasis on the local-mode process. Multiconfigurational calculations were also performed to get more information on the axiality of the compounds.

Magnetic and Luminescence Properties of 8-Coordinate Holmium(III) Complexes Containing 4,4,4-Trifluoro-1-Phenyl- and 1-(Naphthalen-2-yl)-1,3-Butanedionates.

A new series of mononuclear Ho3+ complexes derived from the ß-diketonate anions: 4,4,4-trifluoro-1-phenyl-1,3-butanedioneate (btfa-) and 4,4,4-trifuoro-1-(naphthalen-2-yl)-1,3-butanedionate (ntfa-) have been synthesized, [Ho(btfa)3(H2O)2] (1a), [Ho(ntfa)3(MeOH)2] (1b), (1), [Ho(btfa)3(phen)] (2), [Ho(btfa)3(bipy)] (3), [Ho(btfa)3(di-tbubipy)] (4), [Ho(ntfa)3(Me2bipy)] (5), and [Ho(ntfa)3(bipy)] (6), where phen is 1,10-phenantroline, bipy is 2,2'-bipyridyl, di-tbubipy is 4,4'-di-tert-butyl-2,2'-bipyridyl, and Me2bipy is 4,4'-dimethyl-2,2'-bipyridyl. These compounds have been characterized by elemental microanalysis and infrared spectroscopy as well as single-crystal X-ray difraction for 2-6. The central Ho3+ ions in these compounds display coordination number 8. The luminescence-emission properties of the pyridyl adducts 2-6 display a strong characteristic band in the visible region at 661 nm and a series of bands in the NIR region (excitation wavelengths (λex) of 367 nm for 2-4 and 380 nm for 5 and 6). The magnetic properties of the complexes revealed magnetically uncoupled Ho3+ compounds with no field-induced, single-molecule magnet (SMMs).

Predetermined Ferromagnetic Coupling via Strict Control of M-O-M Angles.

An imidazolidine-phenolate ligand HL yields quadruple-bridged (µ-NCNimidazolidine)2(µ-Ophenolate)2 ferromagnetic dinuclear nickel and cobalt complexes. Both kinds of bridges contribute to the ferromagnetic coupling, but the ferromagnetism of these samples is mainly ascribed to the double µ-Ophenolate links, on the basis of density functional theory calculations. These studies demonstrate not only that the short M-O-M angles of the M2O2 cores favors the parallel alignment of the electrons but also that these angles are the optimal ones for maximizing the ferromagnetic contribution in these complexes. And these acute angles, close to 90°, are predetermined by the geometrical constrictions imposed by the ligand itself. Thus, HL is an uncommon polydentate donor that induces ferromagnetism per se in its metal complexes by strict control of one geometric parameter, the M-O-M angle.

Dinuclear enantiopure Ln3+ complexes with (S-) and (R-) 2-phenylbutyrate ligands. Luminescence, CPL and magnetic properties.

The reaction of Ln(NO3)2·6H2O (Ln = Nd, Sm, Eu, Tb, Dy, Tm and Yb) with the respective enantiopure (R)-(-)-2-phenylbutyric or (S)-(+)-2-phenylbutyric acid (R/S-2-HPhBut) and 4,7-diphenyl-1,10-phenanthroline (Bphen) allows the isolation of chiral dinuclear compounds of the formula [Ln2(µ-R/S-2-PhBut)4(R/S-2PhBut)2(Bphen)2] where Ln = Nd3+ (R/S-Nd-a), Sm3+ (R/S-Sm-a), Eu3+ (R/S-Eu-a), Tb3+ (R/S-Tb-a and R/S-Tb-b), Dy3+ (R/S-Dy-a and R/S-Dy-b), Tm3+ (R/S-Tm-b) and Yb3+ (R/S-Yb-b). Single crystal X-ray diffraction was performed for compounds S-Eu-a and S-Tm-b. Powder crystal X-ray diffraction was performed for all complexes. From the crystallographic data two different structural motifs were found which are referred to as structure type a and structure type b. In structure type a, the Ln3+ atoms are bridged through four R or S-2-PhBut ligands with two different kinds of coordination modes whereas in structure type b the two Ln3+ atoms are bridged through four R or S-2-PhBut ligands showing only one kind of coordination mode. For those lanthanide ions exhibiting both structure types, Tb3+ and Dy3+, a difference in the luminescence and magnetism behavior is observed. All compounds (except R/S-Tm-b) exhibit sensitized luminescence, notably the Eu3+ and Tb3+ analogues. Circular Dichroism (CD) and Circular Polarized Luminescence (CPL) in the solid state and in 1 mM dichloromethane (DCM) solutions are reported, leading to improved chiroptical properties for the DCM solutions. The asymmetry factor (glum) in 1 mM DCM is ±0.02 (+ for R-Eu-a) for the magnetically allowed transition 5D0 → 7F1 and ±0.03 (+ for R-Tb-a and R-Tb-b) for the 5D4 → 7F5 transition. Magnetic properties of all compounds were studied and the Dy3+ compound with the structural motif b (R-Dy-b) shows Single Molecular Magnet (SMM) behavior under a 0 T magnetic field. However, R-Dy-a is a field-induced SMM.

New series of mononuclear ß-diketonate cerium(III) field induced single-molecule magnets.

Five new ß-diketonate Ce3+ mononuclear complexes, [Ce(Btfa)3(H2O)2] (1), [Ce(Btfa)3(phen)] (2), [Ce(Btfa)3(bipy)] (3), [Ce(Btfa)3(terpy)] (4) and [Ce(Btfa)3(bathophen)(DMF)] (5), where Btfa- = 4,4,4-trifluoro-1-phenyl-1,3-butanedionate, phen = 1,10-phenanthroline, bipy = 2,2'-bipyridyl, terpy = 2,2':6',2''-terpyridine and bathophen = 4,7-diphenyl-1,10-phenanthroline, have been synthesized and structurally characterized through X-ray diffraction of single crystals. The central Ce3+ atom displays a coordination number of 8 for 1, 2 and 3 and of 9 for 4 and 5. Under a 0 T external magnetic field, none of the given compounds exhibits single molecule magnet (SMM) behaviour. However, a small magnetic field, between 0.02 and 0.1 T, is enough for all the compounds to exhibit slow relaxation of the magnetization. A comprehensive magnetic analysis, with experimental magnetic data and ab initio calculations, was undertaken for all the complexes, and the study highlights the significance of the different spin relaxation mechanisms that must be considered for a Ce3+ lanthanide ion.

Luminescence, CPL and magnetic properties of 1D enantiopure Ln3+ complexes with (S-) and (R-) α-methoxyphenylacetate ligand.

The reaction of Ln(NO3)2·6H2O (Ln = Eu, Tb, Dy and Sm) with (R)-(-)-α-methoxyphenylacetic acid (R-HMPA) and 1,10-phenanthroline (phen) in EtOH/H2O allows the isolation of 1D chiral compounds of formula [Ln(µ-R-MPA)(R-MPA)2(phen)]n in which Ln = Eu (R-Eu), Tb (R-Tb), Dy (R-Dy) and Sm (R-Sm). The same synthesis by using (S)-(+)-α-methoxyphenylacetic acid (S-HMPA) instead of (R)-(-)-α-methoxyphenylacetic acid allows the isolation of the enantiomeric compounds with formula [Ln(µ-S-MPA)(S-MPA)2(phen)]n where Ln = Eu (S-Eu), Tb (S-Tb), Dy (S-Dy) and Sm (S-Sm). Single crystal X-Ray diffraction measurements were performed for compounds R/S-Eu, R/S-Tb, S-Dy and S-Sm. The luminescence and the circular dichroism measured in the solid state are reported. All compounds show sensitized luminescence, notably the Eu3+ and Tb3+ ones, whose emission color can be perceived by the naked eye. For the Eu3+ and Tb3+ derivatives the quantum yield and the circular polarized luminescence have been measured. For the magnetic allowed transition 5D0 → 7F1 of the Eu3+ compound, the anisotropy factor glum is ±0.013 (+for S-Eu). Also, magnetic properties of all compounds were studied with the Dy3+ analogue showing slow relaxation of the magnetization under a direct current magnetic field of 1000 Oe.

Hexanuclear copper(II) cages built on a central {µ3-O···H···µ3-O} moiety, 1,3-bis(dimethylamino)-2-propanolato and capping R-phosphonates: crystal structures, magnetic behavior, and DFT studies.

The syntheses, structural characterization, and magnetic behavior of two new hexanuclear copper(II) complexes derived from R-phosphonic acids and 1,3-bis(dimethylamino)-2-propanol (Hbdmap) with formulas [Cu(6)(µ-bdmap)(3)(µ(3)-Ph-PO(3))(2)(µ(3)-O···H···µ(3)-O)(ClO(4))(2)(H(2)O)]·5H(2)O (1) and [Cu(6)(µ-bdmap)(3)(µ(3)-t-Bu-PO(3))(2)(µ(3)-O···H···µ(3)-O)(µ(1,3)-dca)(dca)(H(2)O)]·6H(2)O (2) (Ph-H(2)PO(3) = phenylphosphonic acid, t-Bu-H(2)PO(3) = tert-butylphosphonic acid, dca = dicyanamide) are reported. Compounds 1 and 2 are hexanuclear 3.111 R-phosphonate(2-)/1,3-bis(dimethylamino)-2-propanolato(1-) cages including in the center the [µ(3)-O···H···µ(3)-O](3-) unit. The temperature dependence of the magnetic properties of 1 and 2 clearly indicates an overall strong antiferromagnetic coupling confirmed by DFT calculations.

[Effectiveness of the correct use of inhalation devices in patients with COPD: randomized clinical trial]. / Eficacia de la utilización correcta de los dispositivos de inhalación en pacientes con enfermedad pulmonar obstructiva crónica: ensayo clínico aleatorizado.

BACKGROUND AND OBJECTIVE: We aimed yo assess whether an educational intervention on the use of inhalational devices improve the functional status of patients with COPD. PATIENTS AND METHOD: Randomized controlled trial with parallel design and simple blind trial performed in a clinic with 94 patients diagnosed with COPD and who used inhaled devices. Participants were randomized into 2 groups: the intervention group held a training session on the use of inhalers at baseline and one month and strengthening the control group with routine monitoring. The main outcome measure was the change in the synthetic index BODE (Body-Mass Index, Airflow Obstruction, Dyspnea and Exercise Capacity). RESULTS: Patients in the intervention group (n=48) experienced an improvement in the sensation of breathlessness decreasing by 0.85 points (95% CI -1.14 to -0.56) on the MMRC dyspnea scale, while the control group (n=46) did not show any significant change p<0.0001. On the walking test the intervention group walked 6.19 meters (95% CI -4.02 to 16.40) while the control group walked 20.55 meters lower (95% CI -37.80 to -3.28), significant differences with p=0.009. The BODE index decreased (improved) -0.82 points in the intervention group (95% CI -1.16 to -0.46) and increased (worsened) 0.20 in control group (95% CI -0.16 to 0.56) p<0.0001. CONCLUSIONS: Patients with COPD who receive specific training on inhaler use as compared with those with regular monitoring experience improvement in their functional state.

New topology in azide-bridged cobalt(II) complexes: the weak ferromagnet [Co(2)(N(3))(4)(Hexamethylenetetramine)(H(2)O)](n).

A new polynuclear azido-bridged Co(II) compound with formula [Co(2)(N(3))(4)(HMTA)(H(2)O)](n) (1) (HMTA = hexamethylenetetramine) has been structurally and magnetically characterized. The compound 1 crystallizes in the monoclinic system C2/m space group, and consist of a complex three-dimensional system in which end-to-end and end-on azido bridging ligands between the Co(II) atoms coexist. The HMTA ligand is also linking three different Co(II) atoms. The network analysis shows for 1 a three- and six-connected network topology not previously reported. The magnetic properties of 1 are also reported, and it was found that the magnetic interactions define another new three- and four-connected net assigned as a (6.8(2))(6(4).10(2))-tfo net. In the high temperature region the chi(M) versus T plot can be fitted by using the Curie-Weiss law, and the best fit theta value is -26.6 K. For 1 magnetic ordering and spontaneous magnetization is achieved below T(c) = 15.6 K.

El corporativismo médico en el cine / Medical corporatism in cinema

Realizamos una búsqueda sistemática de películas utilizando los términos corporativismo y medicina en sitios web especializados sin importar la duración, nacionalidad, género o año de producción. Excluimos las películas animadas y series de television. Tras visionar 24 películas, seleccionamos seis de ellas buscando que fueran films de calidad, que no fueran muy conocidos y que el corporativismo formara parte importante del guion. En todos ellos y en diferentes formatos (comedia, drama, …) el corporativismo se presenta como una forma de corrupción en la que pueden caer los médicos, teniendo estos que anteponer siempre la salud del paciente y no sus intereses y prebendas. El análisis y comentario de todas estas películas puede ser de gran utilidad para la enseñanza de las ciencias de la salud, ayudando a evitar situaciones indeseables que tengan como responsable al corporativismo.(AU)

We carry out a systematic search for films on specialized websites regardless of duration, nationality, genre or year of production. The exclusion criteria were: animated films and television series. After viewing 24 films, we selected six of them looking for quality films, not very well-known and for corporatism to form an important part of the script. In all of them and in different formats (comedy, drama, …) corporatism is presented as a form of corruption that doctors can fall into, having to always put the patient's health first and not his interests and perks. The analysis and commentary of all these films can be very useful for the teaching of health sciences, helping to avoid undesirable situations that have corporatism as responsible.(AU)

Chiral dinuclear Ln(iii) complexes derived from S- and R-2-(6-methoxy-2-naphthyl)propionate. Optical and magnetic properties.

The reaction of LnCl3·6H2O with (S)-(+)-2-(6-methoxy-2-naphthyl)propionic acid (S-HL), best known as naproxen, and 1,10-phenanthroline (phen) in EtOH allows the isolation of dinuclear chiral compounds S-1-4 of the formula [Ln2(S-L)6(phen)2]·3DMF·H2O [Ln(iii) = Eu (1), Gd (2), Tb (3) and Dy (4)]. The use of the R-enantiomeric species of the HL ligand led to complexes R-1-4 with the formula [Ln2(R-L)6(phen)2]·3DMF·H2O. Compounds R- andS-1, 3 and 4 show strong sensitized metal-centred luminescence in the visible region. Moreover, Dy(iii) complexes R- andS-4 display field-induced single-molecule magnet (SMM) behaviour. For chiral and emissive compounds circularly polarized luminescence (CPL) measurements have also been performed.

2D copper(II) complex built from N-methyl-1,3-diamino-2-propanolate and azide ligands: structure, magnetic, and DFT studies.

The synthesis, structural characterization, and magnetic behavior of a new 2D copper(II) compound with formula {[Cu2(mu-O2CMe)(mu-MedapO)(mu1,1-N3)2]n (CH3OH)n} 1, in which MedapOH is N-methyl-1,3-diamino-2-propanol is reported herein. 1 crystallizes in the triclinic system, space group P1, with unit cell parameters a = 6.688(5) A, b = 10.591(6) A, c = 12.100(7) A, alpha = 113.01(3) degrees, beta = 105.08(4) degrees, gamma = 93.93(3) degrees, Z = 2. The structure of 1 consists of neutral alternate 1D chains formed by the sequence of [Cu(1)-(mu1,1-N3)2-Cu(1)-(MedapO/acetate)-Cu(2)-(mu1,1-N3)2-Cu2)]. Each dinuclear [Cu(1)-Cu(2)] unit interacts with similar dinuclear units of neighbor chains in basis to large Cu-N(azido) distances to give a 2D arrangement. The magnetic behavior of 1 has been checked giving a net ferromagnetic coupling. The fit of the chiM versus T data as dinuclear compound affords a J value of 53.0 cm(-1) as a consequence of the orbital countercomplementarity phenomenon. The exchange pathways have been justified by density functional calculations.

Los celos patológicos en el discurso cinematográfico / Pathological jealousy in cinematographic discourse

Realizamos una selección de películas sobre los celos patológicos buscando films de calidad, de distinta procedencia y época de realización.Finalmente analizamos ocho películas procedentes de Estados Unidos (4), México, Italia, Francia y Corea del Sur, de directores muy distintos realizadas desde 1927 a 2005, pero todas ellas nos presentan las características del enfermo de celos, sus desencadenantes y reacciones típicas de ansiedad, acoso, vigilancia, persecución, episodios violentos, en ocasiones ideas delirantes y alucinaciones y un final muchas veces trágico.La visualización y el análisis de estas películas pueden ser útiles para la docencia en ciencias de la salud pudiendo también ayudar a conocer y prevenir situaciones derivadas de los celos enfermizos. (AU)

We make a selection of films about pathological jealousy looking for quality films, from different sources and times of production.Finally, we analyze eight films from the United States (4), Mexico, Italy, France and South Korea, by very different directors made from 1927 to 2005, but all of them present us with the characteristics of jealousy with their triggers and typical reactions of anxiety, harassment, surveillance, persecution, violent episodes, sometimes delusions and hallucinations and often with a tragic ending.The visualization and analysis of these films can be useful for teaching in health sciences and can also help to know and prevent situations derived from unhealthy jealousy. (AU)

La enfermedad de los celos en el cine / The disease of jealousy in the cinema

Objetivo: Estudiar los celos enfermizos en el cine. Diseño: Análisis descriptivo tas revisión sistemática de películas. Método: Selección de films en webs especializadas con independencia del metraje, nacionalidad,género o año de producción. Siendo criterios de exclusión films de animación y series de TV.Análisis de films seleccionados obteniendo variables de interés respecto del tema estudiado. Resultados: 79 películas seleccionadas y analizadas de cuyo estudio se obtiene como informaciónmás relevante: la mayor parte de los films proceden de Estados Unidos y Francia, realizados en lasdécadas de 1940-50. Pocos films basados en hechos reales. Suicidio como desenlace mayoritariodel celópata. Irrelevancia de la clase social o profesión del celópata. Escasa patología concomitante.Prevalencia de una celotipia estrictamente sentimental. Violencia generalizada del celópata enforma de agresión física como signo más evidente del comportamiento celotípico. Discusión: Rara conciencia de enfermedad del celópata que convierte en irrelevante su condiciónsocial. Violencia y maltrato que desembocan en el asesinato de la persona amada. Comorbilidadpor abuso de alcohol por ser una droga de fácil acceso. Ausencia de violencia de género vicaria.Prevalencia del hombre como paciente celópata por su rol familiar preponderante. Ausencia defactores de riesgo en el desarrollo de personalidades celotípicas. (AU)

Objective: To study unhealthy jealousy in the cinema. Design: Descriptive analysis after a systematical review of films. Method: Selection of films on specialized websites regardless of the footage, nationality, genreor year of production. Being exclusion criteria animation films and TV series. Analysis of selectedfilms obtaining variables of interest regarding the subject studied. Results: 79 films selected and analyzed from whose study the most relevant information isobtained: most of the films come from the United States and France, made in the 1940s and 1950s.Few films based on real events. Suicide as the majority outcome of the cellopath. Irrelevance ofthe social class or profession. Little concomitant pathology. Prevalence of a strictly sentimentaljealousy. Generalized cellopathic violence in the form of physical aggression as the most obvioussign of celotypic behavior. Discussion: Rare awareness of cellopathic disease that makes their social status irrelevant. Violenceand mistreatment that lead to the murder of the loved one. Comorbidity from alcohol abusebecause it is an easily accessible drug. Absence of vicarious gender violence. Male prevalence as acellopathic patient due to his preponderant family role. Absence of risk factors in the developmentof zealotypic personalities. (AU)

Circularly polarized luminescence on dinuclear Tb(iii) and Eu(iii) complexes with (S-) and (R-) 2-phenylpropionate.

The reaction of Ln(NO3)2·6H2O (Ln = Tb and Eu) with (S)-(+)-2-phenylpropionic acid (S-HL) and 1,10-phenanthroline (phen) in EtOH/H2O allows the isolation of the dinuclear chiral compounds of the formula [Ln2(S-L)6(phen)2]·2.5·S-HL in which Ln = Tb (S-1), Ln = Eu (S-2). The same synthesis by using (R)-(-)-2-phenylpropionic acid (R-HL) instead of (S)-(+)-2-phenylpropionic acid allows the isolation of the enantiomeric compounds with the formula [Ln2(R-L)6(phen)2]·2.5·R-HL where Ln = Tb (R-1), Ln = Eu (R-2). All compounds show sensitized luminescence. The luminescence study, including the circularly polarized luminescence spectra of the four compounds, is reported. The magnetic behavior of S-1 and S-2 is also reported.

A new 2D network built from potassium sandwiches {K[Cu(II)3(bdap)3]2} and {(micro(1,3)-SCN)3Cu(I)(NCS)} anions: structure and magnetic behaviour.

The addition of a solution of excess K(SCN) to an aqueous solution containing Cu(NO3)2.6H2O and 1,3-bis(amino)-2-propanol (bdapH) yields a novel 2D mixed Cu(I)-Cu(II) complex; X-ray diffraction and magnetic studies are reported herein.

µ1,1-R-phenylcyanamido bridges as a new safe synthetic strategy for ferromagnetic molecular clusters.

The reaction of Ni(NO3)2·6H2O with di-2-pyridyl ketone, (py)2CO, and the R-phenylcyanamides 4Cl-3CF3-PhHNCN and 4F-3CF3-PhHNCN in CH3OH or CH3CH2OH allows the isolation of the tetranuclear compounds [(Ni4(µ-py2COOCH3)2(µ3-py2COOH)2(µ1,1-4Cl-3CF3-PhNCN)2(4Cl-3CF3-PhNCN)2]·CH3OH (1), [(Ni4(µ-py2COOCH2CH3)2(µ3-py2COOH)2(µ1,1-4Cl-3CF3-PhNCN)2(4Cl-3CF3-PhNCN)2]·2EtOH (2) and [(Ni4(µ-py2COOCH3)2(µ3-py2COOH)2(µ1,1-4F-3CF3-PhNCN)2(4F-3CF3-PhNCN)2]·4CH3OH (3). {(py)2C(OH)O}(-) and {(py)2C(OR)O}(-) are the monoanions of the gem-diol and hemiketal (R = CH3, CH2CH3) forms of (py)2CO. X-ray diffraction analysis reveals defective double-cubane tetrameric entities in which the Ni(II) atoms are linked by µ1,1-R-phenylcyanamido bridges and two kinds of O-bridges. The molar magnetic susceptibility measurements of 1-3 in the 2-300 K range indicate bulk ferromagnetic coupling.

A two-dimensional azido-based topologic ferrimagnet.

The reported Mn(II)-azide system is the first example of a two-dimensional homometallic ferrimagnet, in which the magnetic properties are due exclusively to topological reasons related with the coordination mode of the bridging ligands; it is also the first case in which a system of this kind exhibits long range order comparable to the classical heterospin ferrimagnets.

Different topologies in three manganese-µ-azido 1D compounds: magnetic behavior and DFT-quantum Monte Carlo calculations.

The syntheses and structural characterization of three new monodimensional azido-bridged manganese(ii) complexes with empirical formulae [Mn(N3)2(aminopyz)2]n (1), [Mn(N3)2(4-azpy)2]n (2) and [Mn(N3)2(4-Bzpy)2]n (3) (pyz = pyrazine (1,4-diazine)), 4-azpy = 4-azidopyridine and 4-Bzpy = 4-benzoylpyridine) are reported. 1 is a monodimensional compound with double EO azido bridges, 2 is an alternating monodimensional compound with double end-on and double end-to-end azido bridges in the sequence di-EO-di-EE and 3 is a monodimensional compound with double end-on and double end-to-end azido bridges in the sequence di-EO-di-EO-diEO-di-EO-di-EE. The magnetic properties of 1-3 are reported. Periodic DFT calculations were performed to estimate the J values and quantum Monte Carlo simulations were carried out using the calculated J values to check their accuracy in comparison with the experimental magnetic measurements. From this theoretical analysis, two appealing features of the di-EO Mn(ii) compounds can be extracted: first, the exchange coupling becomes more ferromagnetic when the Mn-N-Mn bridging angle becomes larger and the spin density of the bridging nitrogen atoms has an opposite sign to that of the Mn(II) centers.

[M(N3)2(L)]n: building 3-D MII-azido networks with new topologies.

Novel 3D topologies combining diazine and azido bridges between MnII magnetic centres have been obtained and characterised by low-temperature magnetic measurements.