0. Introduction. 1. Double scissors congruence groups and polylogarithms. 2. Different versions of polylogarithmic complexes. 2.1. The B-groups: Iterative universal definition. 2.2. The B-groups: Configurations of points. 2.3. The B -groups: Explicit definition using cross ratio. 2.4. Bloch group B3 (F ) and generalized cross ratio. 3. Isomorphisms between An 6n and geometric candidates of L&n(...

Two series of lanthanide-containing metal–organic frameworks (Ln-MOFs) the general formula {[Ln(HIDA)2H2O]ClO4·H2O}n (Ln = La (1), Nd (2), Eu (3), Gd (4), Tb (5), Eu:Tb (6); H2IDA iminodiacetic acid) and [Ln(TT) (HTT) (H2O)3]n (7), (8), (9), Dy (10), (11); H2TT tartaric were synthesized by reacting Ln(ClO4)3 with acid L-tartaric acid, respectively. All compounds structurally characterized singl...

Nd3+ or Dy3+ salts and borohydride form redox-active [Ln(BH4)4]− complexes that enable room-temperature electrodeposition of neodymium- dysprosium-containing layers from organic electrolytes.

Three new hydridosilazido ligands, ?N(SiHMe2)Aryl (Aryl = Ph, 2,6-C6Me2H3 (dmp), 2,6-C6iPr2H3 (dipp)) and their rare-earth complexes Ln{N(SiHMe2)Aryl}3(THF)n (Ln Sc, Y, Lu; Aryl n 2; dmp, 1; dipp, 0) were synthesized to study the relationships among ligand steric properties, secondary Ln?H–Si bonding, reactivity of amide SiH groups. In these compounds, encumbrance aryl group was systematically ...

Lanthanide(III) complexes [Ln(pyphen)(acac)(2)(NO(3))] (1, 2), [Ln(pydppz)(acac)(2)(NO(3))] (3, 4) and [La(pydppz)(anacac)(2)(NO(3))] (5), where Ln is La(III) (in 1, 3, 5) and Gd(III) (in 2, 4), pyphen is 6-(2-pyridyl)-1,10-phenanthroline, pydppz is 6-(2-pyridyl)-dipyrido[3,2-a:2',3'-c]phenazine, anacac is anthracenylacetylacetonate and acac is acetylacetonate, were prepared, characterized and ...

The synthesis, crystal structures, and luminescence of two lanthanide polynuclear complexes with the general formula [Ln2(tda)3(H2O)5]·3H2O (Ln = Sm, Eu; tda thiodiacetato anion) are reported. compounds were obtained by direct reaction H2tda lanthanide(III) chloride in an aqueous solution. choice conditions synthesis was based on speciation studies. structure polymeric contains Ln(III) ions a t...

Liquid-liquid extraction of lanthanide ions (Ln(3+)) using N,N-dioctyldiglycolamic acid (DODGAA) was comprehensively investigated, together with fluorescence spectroscopic characterization of the resulting extracted complexes in the organic phase. DODGAA enables the quantitative partitioning of all Ln(3+) ions from moderately acidic solutions, while showing selectivity for heavier lanthanides, ...

The studies reported here focus on the extraction of La(III), Eu(III), and Yb(III) by chelating hexadentate 3-alkoxy-2-hydroxyphenyl substituted diimine ligands using system Ln(NO3)3–Zn(NO3)2–NaNO3–buffer–H2O/diimine-n-caprylic acid–CHCl3. Significant synergistic enhancement has been observed for Ln(III) from nitrate media in presence Zn(II) n-caprylic acid. These effects can be interpreted sel...

Lanthanide ions, Ln(III), are of interest in the treatment of bone density disorders because they are found to accumulate preferentially in bone (in vivo), have a stimulatory effect on bone formation, and exhibit an inhibitory effect on bone degradation (in vitro), altering the homeostasis of the bone cycle. In an effort to develop an orally active lanthanide drug, a series of 3-hydroxy-4-pyrid...