Synthesis, characterization, and x-ray crystal structure of tris-isothiocyanato complexes of the yttrium(III) and europium(III) ions with a six-nitrogen-donor macrocyclic ligand

Bomibieri, G.; Benetollo, Franco; Polo, A.; Cola, Luisa De; Hawkins, William; Vallarino, L. M.

doi:10.1016/s0277-5387(00)80351-4

Cited by 39 publications

(11 citation statements)

References 18 publications

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“…Similarly the Ce N distances range between 2.543(2) and 2.732(2)Å with a mean value of 2.671Å. These distances are comparable with those found in the complex: [36]. The C N and C S distances are 1.160(4) and 1.635(4)Å and compare quite well with similar bond lengths found in related compounds [37][38][39].…”

Section: General Characteristicssupporting

confidence: 81%

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Paschalidis

Gdaniec

2004

Struct Chem

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Three new lanthanide(III) complexes of the type [Ln(PBH) 2 (NO 3 )(NCS)(H 2 O)]NO 3 ·nH 2 O (PBH = 2-pyridinecarboxaldehyde benzoyl-hydrazone) have been prepared from the complexes [Ln(PBH) 2 (NO 3 ) 3 ]·CH 3 COCH 3 ·2H 2 O by anion metathesis reaction and studied by elemental analyses, IR and UV-Vis spectra. The crystal structure of the [Ce(PBH) 2 (NO 3 )(NCS)(H 2 O)]NO 3 ·2.35H 2 O complex was determined by X-ray diffraction. The crystals of the compound isothiocyanato-nitrato-aquo-bis[N -(2-pyridinylmethylene)-Nbenzoyl-hydrazino]-cerium(III) nitrate 2.35 hydrate are monoclinic with crystallographic P2 1 /n symmetry. The coordination sphere consists of two tridentate 2-pyridinecarboxaldehyde benzoylhydrazone, one bidentate nitrate, one isothiocyanate, and one water molecule as ligands. The coordination polyhedron around the cerium atom can be described as a distorted bicapped square antiprism. The coordination of the hydrazone ligand to the metal atom is accomplished through the pyridine nitrogen, the azomethine nitrogen, and the carbonyl oxygen.

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Section: General Characteristicssupporting

confidence: 81%

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Paschalidis

Gdaniec

2004

Struct Chem

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“…This fact, in combination with the applications of lanthanide macrocyclic complexes emerging from biology and medicine have boosted research on these areas [2]. A large number of articles have been published on lanthanide complexes with the hexadentate Schiff base derived by the condensation of 2,6-diacetylpyridine and ethylenediamine [3][4][5][6][7][8][9][10][11][12][13][14]. These complexes are stable enough under physiological conditions.…”

mentioning

confidence: 99%

Interactions of trivalent lanthanide cations with tetradentate Schiff bases: New lanthanide(III) complexes from (1S,2S,N1E,N2E)–N,N′-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine

Tsiouri

Hadjiliadis

Arslan

et al. 2006

Inorganic Chemistry Communications

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“…The final coordination number in these species is determined by the lanthanide cation and the coordinating anions and/or solvent molecules. [12][13][14][15] However, less information is found for the structural characterization of hexaaza macrocyclic lanthanide(III) complexes, derived from 2,6-pyridinedicarbaldehyde and a diamine, and the corresponding correlation with their optical properties. [2,16] This paper reports a study related to terbium(III) and yttrium (III) macrocyclic complexes, with ligands derived from 2,6pyridinedicarbaldehyde and the following diamines: ethylenediamine (L 1 ), o-phenylenediamine (L 2 ), and 1,3-diaminepropane (L 3 ).…”

Section: Introductionmentioning

confidence: 99%

“…Several structures of hexaaza macrocyclic lanthanide(III) complexes have been derived from the condensation of 2,6‐diacetylpyridine and different diamines. The final coordination number in these species is determined by the lanthanide cation and the coordinating anions and/or solvent molecules [12–15] . However, less information is found for the structural characterization of hexaaza macrocyclic lanthanide(III) complexes, derived from 2,6‐pyridinedicarbaldehyde and a diamine, and the corresponding correlation with their optical properties [2,16] …”

Section: Introductionmentioning

confidence: 99%

Thermal Dependence of the Luminescent Properties of Mononuclear Tb^III Macrocyclic Complexes

et al. 2021

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A family of six terbium(III) complexes with hexaaza macrocyclic ligands, together with the isostructural yttrium(III) species, is reported and the thermal dependence of the photophysical properties of the terbium(III) complexes is analysed. The coordination number is defined by the anions, nitrate or isothiocyanate, which act as secondary ligands. While complexes with nitrate anions are decacoordinated species, presenting a N 6 O 4 first coordination sphere, complexes derived from isothiocyanate are nonacoordinated with exclusively nitrogen donor atoms. Regarding the optical properties, only the macrocyclic ligands derived from aliphatic amines act as sensitizers for the terbium(III) cations, and the complexes emit in the green region, according to the obtained CIE coordinates. The isothiocyanato ligand plays a detrimental role on the luminescence of the corresponding complexes, since their emission is weaker as compared to that of the nitrato counterparts. The greater achieved thermal sensitivity for one of the studied terbium(III) complexes was 3.2 %K À 1 at 300 K.

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Synthesis, characterization, and x-ray crystal structure of tris-isothiocyanato complexes of the yttrium(III) and europium(III) ions with a six-nitrogen-donor macrocyclic ligand

Cited by 39 publications

References 18 publications

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Interactions of trivalent lanthanide cations with tetradentate Schiff bases: New lanthanide(III) complexes from (1S,2S,N1E,N2E)–N,N′-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine

Thermal Dependence of the Luminescent Properties of Mononuclear Tb^III Macrocyclic Complexes

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Synthesis, characterization, and x-ray crystal structure of tris-isothiocyanato complexes of the yttrium(III) and europium(III) ions with a six-nitrogen-donor macrocyclic ligand

Cited by 39 publications

References 18 publications

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Synthesis, Spectroscopic Characterization, and Crystal Structure of the Lanthanide(III) Complex [Ce(hydrazone)2(NO3)(NCS)(H2O)]NO3�2.35H2O

Interactions of trivalent lanthanide cations with tetradentate Schiff bases: New lanthanide(III) complexes from (1S,2S,N1E,N2E)–N,N′-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine

Thermal Dependence of the Luminescent Properties of Mononuclear TbIII Macrocyclic Complexes

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Thermal Dependence of the Luminescent Properties of Mononuclear Tb^III Macrocyclic Complexes