Cyano-Bridged Bimetallic Assemblies from Hexacyanometalate, [M(CN)6]3-(M = MnIIIand FeIII), and [M(N4-macrocycle)]2+(M = FeIII, NiIIand ZnII) Building Blocks. Syntheses, Multidimensional Structures, and Magnetic Properties

2001 ◽  
Vol 40 (19) ◽  
pp. 4876-4883 ◽  
Author(s):  
Enrique Colacio ◽  
Mustapha Ghazi ◽  
Helen Stoeckli-Evans ◽  
Francesc Lloret ◽  
José María Moreno ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Building Blocks

Solvothermal Syntheses, Crystal Structures of Two New Thioantimonates(III) of the Mn2(L)Sb2S5 Family with L = Diethylenetriamine and N-Methyl-1,3-Diaminopropane and a Study of the Magnetic Properties of Four Compounds of the Series

2004 ◽  
Vol 59 (8) ◽  
pp. 869-876 ◽  
Author(s):  
L. Engelke ◽  
R. Stähler ◽  
M. Schur ◽  
C. Näther ◽  
W. Bensch ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Elevated Temperatures ◽  
Exchange Interactions ◽  
Building Blocks ◽  
Monoclinic Space Group ◽  
Antiferromagnetic Materials ◽  
Distorted Octahedra ◽  
Secondary Building Units ◽  
Low Dimensional ◽  
New Compounds

AbstractThe two new compounds Mn2(L)Sb2S5 (L = diethylenetriamine = DIEN, N-methyl-1,3- diaminopropane = MDAP) were prepared under solvothermal conditions using the elements as starting materials. Both compounds crystallise in the monoclinic space group P21/c with the lattice parameters a=10.669(7), b=12.805(2), c=12.072(1)Å , β =115.786(7)°,V =1485.1(4) Å3 for L = DIEN and a = 10.1859(7), b = 12.7806(6), c = 12.1256(8)Å , β = 110.173(8)°, V = 1481.7(2) Å3 for L = MDAP and Z = 4. The primary building units are SbS3 pyramids, MnS6 and MnS4N2 distorted octahedra. These primary building blocks are interconnected to form Mn2Sb2S4 hetero-cubane units. The hetero-cubanes share common corners, edges and faces thus forming a second heterocubane. These secondary building units are joined to form layers within the (100) plane. The connection mode yields ellipsoidal pores within the layers. The amines are exclusively bound to one of the two crystallographically independent Mn2+ cations and they point into the pores and between the layers separating the layers from each other. The interlayer separation and the size of the pores depend on the sterical requirements of the amine incorporated into the network. A pronounced distortion of the MnS4N2 octahedron results from a significant elongation of one Mn-S distance from 2.866 Å (L = methylamine, MA) to 3.185 Å for L = MDAP. The magnetic susceptibility curves are typical for low-dimensional antiferromagnetic materials and the large negative values for the Weiss constant Θ indicate strong antiferromagnetic exchange interactions. The magnetic properties are significantly influenced by the change of the Mn-S bonds introduced by the different amines. The compounds decompose at elevated temperatures with a two step reaction for L = MA and ethylenediamine and in a one step reaction for the bidentate acting amine molecules.

scholarly journals Modification of Structure and Magnetic Properties in Coordination Assemblies Based on [Cu(cyclam)]2+ and [W(CN)8]3−

Crystals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Aleksandra Pacanowska ◽  
Mateusz Reczyński ◽  
Beata Nowicka
Keyword(s):  
Magnetic Properties ◽  
Coordination Polymer ◽  
Single Crystal ◽  
Structural Transformation ◽  
Water Solution ◽  
Building Blocks ◽  
Alcohol Solution ◽  
Slow Diffusion ◽  
Crystal Structural ◽  
Water Alcohol

The 1D {[CuII(cyclam)]3[WV(CN)8]2.5H2O}n (1·5H2O) (cyclam = 1,4,8,11-tetraazacyclotetradecane) coordination polymer of ladder topology can be obtained in water-alcohol solution from [Cu(cyclam)]2+ and [W(CN)8]3− building blocks. Upon dehydration, 1·5H2O undergoes a single-crystal-to-single-crystal structural transformation to the anhydrous {[CuII(cyclam)]3[WV(CN)8]2}n (1) form, which retains the same topology, but is characterized by shorter Cu-W distances and significantly more bent CN-bridges. The deformation of the coordination skeleton is reflected in magnetic properties: the predominant intra-chain interactions change from ferromagnetic in 1·5H2O to antiferromagnetic in 1. The reaction between the same building blocks in water solution under slow diffusion conditions leads to the formation of a 0D {[CuII(cyclam)(H2O)]2[CuII(cyclam)][WV(CN)8]2}.3H2O pentanuclear assembly (2·3H2O).

Halogen-bonding in a new family of tris(haloanilato)metallate(iii) magnetic molecular building blocks

2014 ◽  
Vol 43 (19) ◽  
pp. 7006-7019 ◽  
Author(s):  
Matteo Atzori ◽  
Flavia Artizzu ◽  
Elisa Sessini ◽  
Luciano Marchiò ◽  
Danilo Loche ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Dft Calculations ◽  
Crystal Structures ◽  
General Formula ◽  
Halogen Bonding ◽  
Building Blocks ◽  
New Family ◽  
Molecular Building Blocks

Here we report on new tris(haloanilato)metallate(iii) complexes with general formula [M(X2An)3]3−, their crystal structures, DFT calculations and magnetic properties.

Cyanide-bridged heterobimetallic magnetic complexes based on metalloporphyrinate and tricyanometalate building blocks

2016 ◽  
Vol 40 (1) ◽  
pp. 365-371 ◽  
Author(s):  
Feng Gao ◽  
Guang-Zhou Zhu ◽  
Liu Yang ◽  
Min-Xia Yao
Keyword(s):  
Magnetic Properties ◽  
Building Blocks

Three novel cyanide-bridged metalloporphyrinate complexes were synthesized and characterized, and their magnetic properties have also been systematically investigated.

Magnetic properties of one-dimensional CoCu(opba) systems and DFT studies of the building blocks

2008 ◽  
Vol 320 (14) ◽  
pp. e200-e203 ◽  
Author(s):  
E.F. Pedroso ◽  
C.L.M. Pereira ◽  
H.F. dos Santos ◽  
L.F.C. de Oliveira ◽  
W.C. Nunes ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Building Blocks ◽  
Dft Studies ◽  
One Dimensional

Unusual Two-Dimensional Nickel(II) Complexes Based on [Ni(dien)]2+ and [M(CN)4]2− Building Blocks (M = Ni, Pd and Pt)− Synthesis, Structural Diversity and Magnetic Properties

2004 ◽  
Vol 2004 (9) ◽  
pp. 1886-1893 ◽  
Author(s):  
Iñaki Muga ◽  
Juan M. Gutiérrez-Zorrilla ◽  
Pablo Vitoria ◽  
Pascual Román ◽  
Luis Lezama ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Structural Diversity ◽  
Building Blocks ◽  
Two Dimensional
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