Structure of potassium triaqua(ethylenediaminetetraacetato)neodymate(III) pentahydrate

Abstract

Abstract. K[Nd(CIoH12N2Os) (

Synthesis, Crystal Structure, and Vibrational Spectra of Five Novel Peroxidocerates(IV) and the Occurrence of a New Complex Unit in K8[Ce2(O2)3(NTA)2]2·20H2O

“…[53] Along the a axis the anionic complex and the potassium cations are alternating and therefore they are creating a coordination chain ( Figure 5), wherein potassium shows an sevenfold coordination sphere. Figure 6 shows also an alternation of the anionic complex and [Co(NH 3 ) 6 ] 3+ cations along the c axis, wherein these complexes are connected through hydrogen bonds of the carboxylic groups, peroxide group, water, and amine groups. Hydrogen www.zaac.wiley-vch.de 4-unit and ten water molecules, which are involved in a hydrogen bonding network.…”

“…Structures containing alkali, [6][7][8] d-block elements or bismuth, [9][10][11][12] and lanthanides in nitrilotriacetatic and ethylenediamine-tetraacetatic complexes are also known and their structures were investigated by X-ray structure analysis. [6][7][8][9][10][11][12] Some lanthanide carbonates have been investigated structurally by X-ray diffraction analysis.…”

“…Structures containing alkali, [6][7][8] d-block elements or bismuth, [9][10][11][12] and lanthanides in nitrilotriacetatic and ethylenediamine-tetraacetatic complexes are also known and their structures were investigated by X-ray structure analysis. [6][7][8][9][10][11][12] Some lanthanide carbonates have been investigated structurally by X-ray diffraction analysis. [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] The mentioned literature only deals with lanthanides in oxidation state of rather three than two in case of europium.…”

Syntheses, Characterization and Structural Determination of Nine Coordinated (C6H5N2H4)3[Ce(OOC-C5H3N-COO)3].4H2O and (C6H5N2H4)3[Nd(OOC-C5H3N-COO)3].4H2O

“…Pyridine-2,6-dicarboxylicacid (PDCA) is also a strong chelating agent which was reported to form chelates with transition metals and rare earth metal(III) ions. [8][9][10][11] Though hydrazinium complexes of PDC were reported with transition and rare earth metal(III) ions, corresponding phenyl hydrazinium complexes were not reported except for cobalt complex. The presence of heavier phenyl hydrazinium moiety instead of hydrazinium cation is expected to change the mode of coordination of the PDCA dramatically and hence such complexes are to have interesting structures and biological activities.…”

“…Furthermore, the ions in the outer sphere are also results in changes in coordination number and structure. Though several articles have been published with K C , Na C , NH 4 C etc., as counter ions, [5][6][7][8][9][10][11] the hydrazinium and phenylhydrazinium complexes are scarce in the literature. [12][13][14] Among a few positively charged ligands, hydrazinium and phenyl hydrazinium cations not only behave as counter ions but also capable of coordinating with metal ions.…”