Chloride Derivatives of Lanthanide Ortho-Oxomolybdates:, 3. Crystal Structures, Spectroscopic Studies, and Magnetic Properties of the LnCl[MoO4] Representatives with the Large Lanthanides (Ln = La, Ce, Pr) 

2010 ◽  
Vol 636 (7) ◽  
pp. 1183-1189 ◽  
Author(s):  
Ingo Hartenbach ◽  
Thomas Schleid ◽  
Sabine Strobel ◽  
Peter K. Dorhout
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Spectroscopic Studies ◽  
Derivatives Of

Oxalato-Bridged Dinuclear Copper(II) Complexes ofN-Alkylated Derivatives of 1,4,7-Triazacyclononane: Synthesis, X-ray Crystal Structures and Magnetic Properties

2006 ◽  
Vol 2006 (23) ◽  
pp. 4872-4878 ◽  
Author(s):  
Matthew J. Belousoff ◽  
Bim Graham ◽  
Boujemaa Moubaraki ◽  
Keith S. Murray ◽  
Leone Spiccia
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Dinuclear Copper ◽  
X Ray ◽  
Derivatives Of

Synthesis, structure, spectroscopic studies and magnetic properties of Cu2N2O4-, Cu2N2O2(S2)-, Cu2N2S4-chromophores based on aminomethylene derivatives of pyrazole-5-one(thione)

Polyhedron ◽  
2020 ◽  
Vol 188 ◽  
pp. 114623
Author(s):  
Ali I. Uraev ◽  
Sergey E. Nefedov ◽  
Konstantin A. Lyssenko ◽  
Valery G. Vlasenko ◽  
Vladimir N. Ikorskii ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spectroscopic Studies ◽  
Derivatives Of

Crystallographic and spectroscopic studies of adducts of indium (III) iodide with two cyclic ketones

2000 ◽  
Vol 78 (5) ◽  
pp. 536-541 ◽  
Author(s):  
M A Brown ◽  
D G Tuck
Keyword(s):  
Crystal Structures ◽  
Spectroscopic Studies ◽  
Solution Chemistry ◽  
Cyclic Ketones ◽  
Tetrahedral Structure ◽  
Space Group ◽  
Iodide Solution ◽  
Derivatives Of

Indium(III) iodide forms a 1:1 adduct with 9-xanthenone, of quasi-tetrahedral structure; triclinic, a = 10.805(4), b = 11.494(4), c = 7.493 (2) Å, α = 104.12(3), β = 106.35(3), γ = 91.165(3)°, V = 860.8(5) Å3, Z = 2, space group P1-. With 9-fluorenone, the adduct has 1:2 stoichiometry, and approximately D3h symmetry in the InI3O2 kernel; the structure is triclinic, a =11.212(2), b = 16.504(3), c = 7.537(2) Å, α = 94.57(2), β = 109.05(1), γ = 91.165(15)°, V = 1312.6(4) Å3, Z = 2, space group P1-. The solid structures, and the solution chemistry, are compared with those of related neutral derivatives of indium(III) halides.Key words: Indium(III) iodide, solution chemistry, crystal structures, adducts.

scholarly journals Bis(triphenylphosphine)iminium Salts of Dioxothiadiazole Radical Anions: Preparation, Crystal Structures, and Magnetic Properties

Crystals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 30 ◽  
Author(s):  
Paweł Pakulski ◽  
Mirosław Arczyński ◽  
Dawid Pinkowicz
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Magnetic Materials ◽  
Exchange Coupling ◽  
Crystal Packing ◽  
Stable Radical ◽  
Radical Anions ◽  
Iminium Salts ◽  
Redox Active ◽  
Derivatives Of

Phenanthroline dioxothiadiazoles are redox active molecules that form stable radical anions suitable for the construction of supramolecular magnetic materials. Herein, the preparation, structures and magnetic properties of bis(triphenylphosphine)iminium (PPN) salts of [1,2,5]thiadiazole[3,4-f][1,10]phenanthroline 1,1-dioxide (L), [1,2,5]thiadiazole[3,4-f][4,7]phenanthroline 1,1-dioxide (4,7-L), 5-bromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (BrL), and 5,10-dibromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (diBrL) are reported. The preparation of new bromo derivatives of the L: 5-bromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (BrL) and 5,10-dibromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (diBrL)—suitable starting materials for further derivatization—are described starting from a commercially available and cheap 1,10-phenanthroline. All PPN salts show antiferromagnetic interactions between the pairs of radical anions, which in the case of PPN(diBrL) are very strong (−116 cm−1; using Ĥ = −2JSS type of exchange coupling Hamiltonian) due to a different crystal packing of the anion radicals as compared to PPN(L), PPN(4,7-L), and PPN(BrL).

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