A rare isostructural series of 3d–4f cyanido-bridged heterometallic squares obtained by assembling [FeIII{HB(pz)3}(CN)3]− and LnIII ions: synthesis, X-ray structure and cryomagnetic study

2021 ◽  
Author(s):  
Maria-Gabriela Alexandru ◽  
Diana Visinescu ◽  
Beatrice Cula ◽  
Sergiu Shova ◽  
Renato Rabelo ◽  
...  
Keyword(s):  
Magnetization Relaxation ◽  
X Ray ◽  
Heterobimetallic Complexes

A rare isostructural series of cyanido-bridged {FeIIILnIII}2 square-shaped heterobimetallic complexes were obtained, in which TbIII, DyIII and ErIII derivatives show slow magnetization relaxation under zero and non-zero static fields.

Heterobimetallische 3d-4f-Komplexe mit Bis(1,2-dithiooxalato)nickelat(II) als planarem Brückenbaustein / Heterobimetallic 3d-4f-Complexes with Bis(1,2-dithiooxalato)nickelate(II) as Planar Bridging Block

2005 ◽  
Vol 60 (11) ◽  
pp. 1149-1157 ◽  
Author(s):  
Matthias Siebold ◽  
Alexandra Kelling ◽  
Uwe Schilde ◽  
Peter Strauch
Keyword(s):  
Room Temperature ◽  
Magnetic Moments ◽  
Lanthanide Ions ◽  
Water Molecules ◽  
Unit Cell Parameters ◽  
Ionic Radii ◽  
X Ray ◽  
Cell Parameters ◽  
Heterobimetallic Complexes ◽  
The Individual

Planar bis(1,2-dithiooxalato)nickelates(II) react in aqueous solutions of lanthanide ions to form pentanuclear, heterobimetallic complexes of the general composition [{Ln(H2O)n}2- {Ni(dto)2}3]・xH2O (Ln = Y3+, La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+; n = 4 or 5; x = 9 - 12). With [{Nd(H2O)5}2{Ni(S2C2O2)2}3]・xH2O (x = 10 - 12) (1) and [{Er(H2O)4}2{Ni(S2C2O2)2}3]・xH2O (x = 9 - 10) (2) we were able to isolate two complexes of this series as single crystals, which were characterized by X-ray structure analysis. Depending on the individual ionic radii of the lanthanide ions, the compounds crystallize in two different crystal systems with the following unit cell parameters: 1, monoclinic in P21/c with a = 11.3987(13), b = 11.4878(8), c = 20.823(2) Å , β = 98.907(9)° and Z = 2; 2, triclinic in P1̅ with a = 10.5091(6), b = 11.0604(6), c = 11.2823(6) Å , α = 107.899(4)°, β = 91.436(4)°, γ = 112.918(4)° and Z = 1. The channels and cavities appearing in the packing of the molecules are occupied by uncoordinated water molecules. High magnetic moments up to 14.65 BM./f.u. have been observed at room temperature due to the combined moments of the individual lanthanide ions.

Cyanide-Bridged Heterobimetallic Complexes of the Group 6 Metal Carbonyls and Copper(I). X-ray Structures of (CO)5MCNCu(PPh3)3(M = Cr, W) Derivatives

1996 ◽  
Vol 35 (16) ◽  
pp. 4764-4769 ◽  
Author(s):  
Donald J. Darensbourg ◽  
Jeffrey C. Yoder ◽  
Matthew W. Holtcamp ◽  
Joseph H. Reibenspies
Keyword(s):  
Metal Carbonyls ◽  
X Ray ◽  
Heterobimetallic Complexes ◽  
Group 6

Cycloheptatrinyl bridged heterobimetallic complexes: synthesis, fluxional behaviour and X-ray crystal structure of syn-[(μ-η3;η2-C7H7)Fe(CO)3Pt(η2, σ1-C8H12C5H5)]

1995 ◽  
Vol 229 (1-2) ◽  
pp. 461-468 ◽  
Author(s):  
Marta Airoldi ◽  
Tiziana Beringhelli ◽  
Giulio Deganello ◽  
Giuseppe Gennaro ◽  
Massimo Moret ◽  
...  
Keyword(s):  
Crystal Structure ◽  
X Ray ◽  
Heterobimetallic Complexes

Novel heterobimetallic complexes with S2CPR3(κ-S,S′)(κ-S,C,S′) bridges. X-Ray structure of [MnMo(CO)6(μ-Br)-(μ-S2CPiPr3)]

1991 ◽  
Vol 420 (2) ◽  
pp. C12-C15 ◽  
Author(s):  
Daniel Miguel ◽  
Julio A. Pérez-Martinínez ◽  
Víctor Riera ◽  
Santiago García-Granda
Keyword(s):  
X Ray ◽  
Heterobimetallic Complexes
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