Effects of dimeric and polymeric structures on spectroscopy of Pr3+ and Eu3+ ions

Legendziewicz, J.

doi:10.1007/bf02606529

Cited by 22 publications

(5 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The data explain the role of Cu ion in this polymeric sample, the EPR data show Nd-Nd interaction and also the Nd-Cu one [15,16].…”

Section: Polymeric and Dimeric Systemsmentioning

confidence: 90%

“…The cooperative processes in solid ionic systems were widely investigated by many authors; in molecular systems of lanthanide carboxylates they were studied by Gudel and by us, both in polymeric and dimeric structures [16][17][18][19]. The complex structure of spectra was explained by exchange, superexchange, or phonon-mediated interaction between lanthanide ions coupled in a dimer by Ln-O-C-O-Ln bridge (on the basis of HR and Raman spectra).…”

Section: Polymeric and Dimeric Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Legendziewicz

1996

Acta Phys. Pol. A

Self Cite

View full text Add to dashboard Cite

The lecture deals with a group of lanthanide compounds in which some structural factors influence, in a special way, spectroscopic properties of the systems under investigation. The following systems were chosen: three with polymeric structure, two of the dimer type, one a pseudo-dimer system with coordination number (C.N.) = 7, and an octahedral compound of LnL 6 type. The crystal structures of the systems under consideration will be shown, their absorption and excitation spectra will be presented and confronted with X-ray data. Radiative and nonradiative processes will be considered and the role of cooperative interactions analyzed. Some aspects of dynamics in solids will be done, too.

show abstract

“…The data explain the role of Cu ion in this polymeric sample, the EPR data show Nd-Nd interaction and also the Nd-Cu one [15,16].…”

Section: Polymeric and Dimeric Systemsmentioning

confidence: 90%

Section: Polymeric and Dimeric Systemsmentioning

confidence: 99%

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Legendziewicz

1996

Acta Phys. Pol. A

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since the number of strong optical lines exceeds that expected from X-ray results, one could assume some deviation in the crystal structure with temperature lowering. The observed phenomenon could be also given b y cooperative absorption in system with dimeric structure, with two praseodymium ions being coupled [2,12,16,17]. Careful analysis of the absorption spectra of diluted crystals should help in explanation of the obtained results.…”

mentioning

confidence: 88%

Spectroscopic Studies of PrBr₃·7H₂O Monocrystal

et al. 1996

Self Cite

View full text Add to dashboard Cite

Single crystals of praseodymium tribromide heptahydrate were grown from aqueous solution. The IR, Raman, and high resolution absorption spectra were measured at room and low temperatures. The assignments of IR and Raman frequencies are reported. The temperature dependence of intensities was found and vibronic coupling in f-f transitions was analysed.Anisotropy of the intensities of optical lines was detected and taken into account in the Judd-Ofelt analysis of the f-f transitions probabilities. The results are compared to the available IR and electron spectroscopic data for other single crystals of lanthanide bromides.

show abstract

“…Intensity of 3Η4 -+ 3Ρ2 transition increases rather a little. The intensities of these transitions are low compared to other available praseodymium results[1,2,4,8].…”

mentioning

confidence: 66%

“…The metal ions in mixed binuclear complexes can help in understanding different types of interactions and their effect on radiative and nonradiative transitions. A few years ago we published spectroscopic results for lanthanide dimer systems with centro and noncentrosymumetric dimeric units [1][2][3][4]. Now we present spectroscopy and structure of a different kind of dimer: single crystals of Ln-Hg type.…”

Section: (469)mentioning

confidence: 99%

Optical Properties and Structure of Ln(NCS)(Hmpa)₄-(SCN)₂- HgCl(SCN)

et al. 1996

Self Cite

View full text Add to dashboard Cite

Praseodymium, neodymium and europium complexes of the formula Ln(NCS) (Ηmpaa) 4 -(SCΝ) 2 -HgCl(SCΝ) were synthesised from non-aqueous solutions. The structure of neodymium complexes was determined by X-ray diffraction. The crystals of the title compounds crystallise in the space group Cc, where lanthanide ions are coordinated to seven ligand groups: four of Hmpa molecules and three SCN ions. The compounds were characterised by IR, luminnescence, excitation and absorption spectra at 6, 77, and 298 K. Probabilities of electronic transitions for Pr 3+ ion were examined at 6 ^{ and at room temperatures. Vibronic components were observed and analysed on the basis of IR and Raman data. Asymmetric arrangement of Ln ions was found from X-ray analysis and its inflnence on optical properties of active centre was discussed.

show abstract

Effects of dimeric and polymeric structures on spectroscopy of Pr3+ and Eu3+ ions

Cited by 22 publications

References 37 publications

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Spectroscopic Studies of PrBr₃·7H₂O Monocrystal

Optical Properties and Structure of Ln(NCS)(Hmpa)₄-(SCN)₂- HgCl(SCN)

Contact Info

Product

Resources

About

Effects of dimeric and polymeric structures on spectroscopy of Pr3+ and Eu3+ ions

Cited by 22 publications

References 37 publications

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6

Spectroscopic Studies of PrBr3·7H2O Monocrystal

Optical Properties and Structure of Ln(NCS)(Hmpa)4-(SCN)2- HgCl(SCN)

Contact Info

Product

Resources

About

Spectroscopic Studies of PrBr₃·7H₂O Monocrystal

Optical Properties and Structure of Ln(NCS)(Hmpa)₄-(SCN)₂- HgCl(SCN)