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Journal articles on the topic 'Spectral studies of lanthanide( III)'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Arora Mukesh Sharma, Kishor, Mukesh Sharma, and K. P. Sharma. "Studies of Some Lanthanide(III) Nitrate Complexes of Schiff Base Ligands." E-Journal of Chemistry 6, s1 (2009): S201—S210. http://dx.doi.org/10.1155/2009/149837.

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The studies of 16 new lanthanide(III) nitrate complexes of Schiff base ligands are discussed. Schiff bases were obtained by the condensation of 2–methyl–4–N,N–bis–2' –cyanoethyl aminobenzaldehyde with aniline and 3 different substituted anilines. Lanthanide(III) nitrates,viz. gadolinium(III) nitrate, lanthanum(III) nitrate, samarium(III) nitrate and cerium(III) nitrate were chosen to synthesize new complexes. The complexes were characterized on the basis of physicochemical studiesviz. elemental analysis, spectral,viz. IR and electronic spectral and magnetic studies. TGA studies of some of the

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2

Chaudhary, Sakshi. "SYNTHETIC AND SPECTRAL STUDIES OF COMPLEXING BEHAVIOR OF ISOTHIO CYANATO COMPLEXES OF 4 [N-4-ETHOXY BENZALIDINE AMINO] ANTIPYRINE (C20H21N3O2)." Green Chemistry & Technology Letters 2, no. 3 (2016): 144–50. http://dx.doi.org/10.18510/gctl.2016.234.

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Trivalent Lanthanides behave as hard acid and thus are expected to form stronger stable complexes with ligands having N-donor atoms. Coordination number less than six are uncommon for the lanthanides. Substituted Pyrazolones have been reported to posses’ strong pharmaceutical properties.Complexes were prepared by adding 40 ml hot ethanolic solution of ligand (3M mol) to ethanolic solution of lanthanide (III) isothiocyanate (1M mol). Molar conduction, molecular weight, magnetic susceptibility, infrared and electronic spectroscopy were used to characterization of newly synthesized complexes

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3

Shyni, B., J. P. Remiya, and T. S. Sikha. "Synthesis, Characterization and Applications of Some Lanthanide(III) Complexes with Schiff Base Derived from L-Valine and Vanillin." Asian Journal of Chemistry 36, no. 7 (2024): 1549–58. http://dx.doi.org/10.14233/ajchem.2024.31646.

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Three lanthanide complexes of Sm(III), Nd(III) and Dy(III) with Schiff base ligand, potassium 2-((4-hydroxy-3-methoxybenzylidene)amino)-3-methylbutanoate derived from the condensation of vanillin and L-valine have been successfully synthesized by solid-state method. The elemental analysis, and spectral studies, such as CHN analysis, FT-IR & FIR, UV-Visible, HR-MS, TG/DTG analysis, photoluminescent spectra and conductivity measurements, were employed for the comprehensive characterization of these compounds. These data indicate that the synthesized Schiff base ligand act as tridentate (ONO)

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4

R., K. AGARWAL, AGARWAL HIMANSHU, and PRASAD RAM. "Synthesis, Magnetic and Spectral Studies of Lanthanide(III) Chloride Complexes of Hydrazones of Isonicotinic Acid Hydrazide." Journal of Indian Chemical Society Vol. 73, Nov 1996 (1996): 605–7. https://doi.org/10.5281/zenodo.5918056.

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Department of Chemistry. Lajpat Rai Post-Graduate College, Sahibabad-201 005 (Ghaziabad) <em>Manuscript received 9 June 1994. revised 27 October 1994. accepted 22 March 1995</em> Synthesis, Magnetic and Spectral Studies of Lanthanide(III) Chloride Complexes of Hydrazones of Isonicotinic Acid Hydrazide.

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5

Carac, Andreea, Rica Boscencu, Geta Carac, and Simona Gabriela Bungau. "Spectral Study of Some Lanthanides Complexes with Quaternary Pyridinium Ligands." Revista de Chimie 68, no. 10 (2017): 2265–69. http://dx.doi.org/10.37358/rc.17.10.5868.

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Some lanthanides complexes with two N-heterocyclic ligands derived from 4,4`-bipyridinium and 1,2-bis-(4-pyridinium) ethane (noted BP and BPE) were studied in presence of triethylamine and methanol in view of their application as cytotoxic agents. Absorption spectra have been recorded by UV-Vis spectroscopy during the complexation process in solution. The ligands demonstrate preferential arrangements in lanthanide�s electronic structure which is identified much clearly in ultraviolet range. La(III)-BP solution indicates absorption at lmax= 206 nm while La(III)-BPE at lmax of 208 nm. The soluti

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6

Anoop, M. R., P. S. Binil, K. R. Jisha, S. Suma, and M. R. Sudarsanakumar. "Synthesis, Spectral and Thermal Studies of Lanthanide(III) Complexes of Phenylbutazone." Journal of the Korean Chemical Society 55, no. 4 (2011): 612–19. http://dx.doi.org/10.5012/jkcs.2011.55.4.612.

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7

Hussein, Kameran Basim. "Preparation and characterization of Trivalent lanthanide ion complexes with tridentate mono azo Ligand." Journal of Wasit for Science and Medicine 1, no. 2 (2022): 31–43. http://dx.doi.org/10.31185/jwsm.7.

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The lanthanide complexes of 4-(2-pyridylazo)-resorcinol are prepared in solid state. All compounds have been characterized by means of elemental analysis (C.H.N) molar conductance, magnetic susceptibility and analytical spectral studies IR and UV-Visible spectral techniques. While the complexes have additionally been characterized by differential thermal analysis data and are formulated as [Ln(C11H8N3O2)3].H2O Ln = Pr3+ , Nd3+ and Sm3+ ; [Ln(C11H8N3O2)3] Ln = Eu3+, Er3+ and Yb3+ . The results of these studies on the synthesis and structural characterization, suggest neutral lanthanide complexe

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8

Geethalakshmi, V., N. Nalini, S. S. Sabithamala, D. Tamilselvi, and C. T. Theivarasu. "Synthesis and Spectral Studies of Piprazine Schiff Base Lanthanide(III) Complexes and their Microbial and Anticancer Activity." Asian Journal of Chemistry 34, no. 1 (2021): 155–61. http://dx.doi.org/10.14233/ajchem.2022.23460.

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A novel Schiff base ligand has been synthesized by the condensation reaction of 1-(2-amino ethyl)piprazine with o-vanillin in methanol solution. Using lanthanide(III) metal ions (Ln3+ = La3+, Ce3+, Pr3+, Nd3+, Sm3+ and Gd3+) in methanol, six complexes of piprazine Schiff base were synthesized. All the lanthanide(III) complexes were characterized by IR, UV, NMR, TG-DTA, X-ray diffraction analysis and photoluminence. According to the spectral analysis piprazine act as a bidentate monobasic donor coordinating through the azomethine nitrogen and a phenyl oxygen atom. Antimicrobial studies of the s

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9

Naik, Ganesh N., Raghavendra P. Bakale, Aishakhanam H. Pathan, Shashikala G. Ligade, Shreenivas A. Desai, and Kalagouda B. Gudasi. "2,4-Dichlorophenoxyacetic Acid Derived Schiff Base and Its Lanthanide(III) Complexes: Synthesis, Characterization, Spectroscopic Studies, and Plant Growth Activity." Journal of Chemistry 2013 (2013): 1–13. http://dx.doi.org/10.1155/2013/810892.

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2,4-Dichlorophenoxyacetic acid derived Schiff base (HL) and its lanthanide [La(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Dy(III), Y(III)] complexes were synthesized and characterized by various spectroscopic (1H,13C, DEPT and 2D HMQC NMR, FT-IR, UV-Vis, and mass) techniques and other analytical methods. HL exhibits “E” and “Z” isomerism and was confirmed by variable temperature1H NMR studies. The spectral and analytical data reveals the bidentate coordination of HL to lanthanide(III) ion, through carboxylic acid group via deprotonation. Fluorescence spectrum of europium complex shows

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10

Athira, Janardhanan, Yesodharan Sindhu, Susamma Sujamol, and Kochukittan Mohanan. "Synthesis and spectroscopic characterization of some lanthanide(III) nitrate complexes of 3-[3-carboxyethyl-4,5- dimethylthiophene-2-yl)azo]pent-2,4-dione." Journal of the Serbian Chemical Society 76, no. 2 (2011): 249–61. http://dx.doi.org/10.2298/jsc100414025a.

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3-[3-Carboxyethyl-4,5-dimethylthiophene-2-yl)azo]pent-2,4-dione was synthesized by coupling diazotized 2-amino-3-carboxyethyl- 4,5-dimethylthiophene with acetylacetone. Based on various spectral studies and elemental analysis, an intramolecularly hydrogen bonded azoenol structural form was assigned for the ligand. This ligand is versatile in forming a series of lanthanide(III) complexes viz, lanthanum(III), cerium(III), praseodymium(III), neodymium(III), samarium(III) and gadolinium(III), which were characterized through various spectral studies, elemental analysis, magnetic susceptibility mea

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11

Tripathi, Priti, Akhilesh Kumar Srivastava, Om Prakash Pandey, and Soumitra Kumar Sengupta. "SYNTHESIS, SPECTRAL CHARACTERIZATION AND ANTIFUNGAL STUDIES ON LANTHANUM (III) AND PRASEODYMIUM (III) COMPLEXES WITH N2O2DIAZADIOXAMACROCYCLES." International Journal of Advanced Research 8, no. 11 (2020): 01–10. http://dx.doi.org/10.21474/ijar01/11973.

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A novel series of N2O2diazadioxamacrocyclic complexes of type [Ln(mac)Cl3] has been synthesized via the condensation reactions of a 3-(phenyl/substituted phenyl)-4-amino-5-hydrazino-1,2,4-triazoles with salicylaldehyde and 1,4-dibromobutane in the presence of lanthanum(III) chloride and praseodymium(III) chloride in ethanol. All the newly synthesized compounds were characterized by elemental analysis, electronic absorption, IR, 1HNMR. The particle size of the complexes have been calculated from XRD spectral using Debye-Scherrer formula and these are found to be in 29-31 nm range. In order to e

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12

Philip, Surya, Soosan Thomas та K. Mohanan. "Synthesis, fluorescent studies, antioxidative and α-amylase inhibitory activity evaluation of some lanthanide(III) complexes". Journal of the Serbian Chemical Society 83, № 5 (2018): 561–74. http://dx.doi.org/10.2298/jsc180918010p.

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A novel heterocyclic ligand, viz. 1,2-dihydro-1,5-dimethyl-4-[[1-2- -oxo-2H-1-benzopyran-3-yl)ethylidene]amino]-2-phenyl-3H-pyrazol-3-one, was prepared by condensing 3-acetylcoumarin with 4-aminoantipyrine. This ligand is versatile in forming complexes with lanthanum(III), praseodymium(III), samarium(III), gadolinium(III) and dysprosium(III) ions. The ligand and the metal complexes were characterized through various physicochemical and spectral studies. The spectral studies revealed that the ligand is coordinated to the metal ion in a bidentate fashion, through the azomethine nitrogen and the

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13

Agarwal, R. K., Kishor Arora, and R. K. Sarin. "Magneto and Spectral Studies of Lanthanide(III) Nitrate Complexes of 4-Vinylpyridine." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 24, no. 5 (1994): 735–47. http://dx.doi.org/10.1080/00945719408001298.

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14

Keshavan, B., P. G. Chandrashekara, and N. M. Made Gowda. "Synthesis, characterization, and spectral studies of lanthanide(III) nitrate complexes of promethazine." Journal of Molecular Structure 553, no. 1-3 (2000): 193–97. http://dx.doi.org/10.1016/s0022-2860(00)00551-2.

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15

Kurpiel-Gorgol, R., and Wanda Brzyska. "Spectral and thermal studies of Y(III) and heavy lanthanide 4-chlorophthalates." Journal of Thermal Analysis and Calorimetry 82, no. 2 (2005): 389–94. http://dx.doi.org/10.1007/s10973-005-0907-z.

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16

Shubh, laxmi, S.N. Jatolia, N. Bhojak, and O.P Regar. "Variation in Spectral Parameter of Gd (III) ion with Bioactive N, O-Containing -Heterocyclic Aromatic Ligand." International Journal of Novel Research in Physics Chemistry & Mathematics 9, no. 2 (2022): 1–5. https://doi.org/10.5281/zenodo.6575560.

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<strong>Abstract:</strong> The importance and versatility of derivatives of quinolines is well established in many forms of drugs, potential use of lanthanide complexes as diagnostic molecule have also been reported in literature but studies on biological aspects of complexes of lanthanides related with bioactive species are lesser.  The constructions and characterizations of lanthanide complexes are currently of great interest because of their unique physico-chemical properties and various applications in medical field. The present work describes the synthesis, spectral and biological in

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17

Cristóvão, Beata, Wieslawa Ferenc, J. Sarzyński, and Halina Głuchowska. "Synthesis and magnetic studies of copper(II)-lanthanide(III) 5-bromosalicylideneglycylglycine." Eclética Química Journal 34, no. 1 (2018): 25. http://dx.doi.org/10.26850/1678-4618eqj.v34.1.2009.p25-30.

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The physico-chemical properties of the new 3d-4f heteronuclear complexes with general formula LnCu3(C11H8N2O4Br)3·13H2O (where Ln = Pr, Eu, Gd, Tb, Er, Yb and H3(C11H8N2O4Br) – 5-bromosalicylideneglycylglycine) were studied. The compounds were characterized by elemental, spectral and thermal analyses and magnetic measurements. The formation of Schiff base is evidenced by a strong band at ca. 1646–1650 cm–1 attributable to C=N stretching mode. The presence of water molecules is confirmed by broad absorptions with maximum at 3360 – 3368 cm-1. The Cu(II)–Ln(III) complexes are stable up to ca. 318

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18

Binil, P. S., M. R. Anoop, K. R. Jisha, S. Suma, and M. R. Sudarsanakumar. "Synthesis, spectral characterization, thermal and biological studies of lanthanide(III) complexes of oxyphenbutazone." Journal of Rare Earths 32, no. 1 (2014): 43–51. http://dx.doi.org/10.1016/s1002-0721(14)60032-6.

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19

Kostova, Irena, and Georgi Momekov. "Synthesis, spectral and pharmacological studies on lanthanide(III) complexes of 3,5-pyrazoledicarboxylic acid." Journal of Coordination Chemistry 61, no. 23 (2008): 3776–92. http://dx.doi.org/10.1080/00958970802155321.

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20

Yaraşır, Meryem N., Mehmet Kandaz, Atıf Koca, and Bekir Salih. "Functional alcohol-soluble double-decker phthalocyanines: synthesis, characterization, electrochemistry and peripheral metal ion binding." Journal of Porphyrins and Phthalocyanines 10, no. 08 (2006): 1022–33. http://dx.doi.org/10.1142/s1088424606000375.

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In this study we report the preparation, physical characterization and electrochemistry of peripherally functionalized substituted ionophore double-decker lanthanide phthalocyanines, lanthanide bis-[(4,4″,4″,4‴)-tetrakis-(6-hydroxyhexylthio)phthalocyaninates], { M [ Pc ( S - C 6 H 13 OH )4]2} ( M = Pr III, Yb III, and Lu III). All benzenes on the double-decker phthalocyanines are functionalized with hydroxyhexylsulfanyl moieties for potential use as metal ion binding and surface anchors. The double-decker phthalocyanines synthesized from the anhydrous metal salts { Ln ( acac )3} and the corres

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21

Gudasi, Kalagouda B., Vidyadhar C. Havanur, Siddappa A. Patil, and Basavaraj R. Patil. "Antimicrobial Study of Newly Synthesized Lanthanide(III) Complexes of 2-[2-hydroxy-3-methoxyphenyl]-3-[2-hydroxy-3-methoxybenzylamino]-1,2-dihydroquinazolin-4(3H)-one." Metal-Based Drugs 2007 (February 13, 2007): 1–7. http://dx.doi.org/10.1155/2007/37348.

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New lanthanide(III) complexes with 2-[2-hydroxy-3-methoxyphenyl]-3-[hydroxyl-3-methoxybenzylamino]-1,2-dihydroquin-azoline-4(3H)-one (Hmpbaq) have been synthesized and characterized by elemental analysis, conductance measurements, magnetic susceptibilities, spectroscopic (IR, NMR, UV, EPR), and thermal studies. Molar conductance studies indicate 1 : 1 electrolytic behavior for these complexes. IR spectra indicate that Hmpbaq acts as a tridentate ligand coordinating through carbonyl oxygen, benzyl amine nitrogen, and deprotonated phenolic oxygen. TG and DTA studies of La(III) and Pr(III) comple

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22

Raju, B., and B. N. Sivasankar. "Spectral, thermal and X-ray studies on some new Bis-hydrazine lanthanide(III) glyoxylates." Journal of Thermal Analysis and Calorimetry 94, no. 1 (2008): 289–96. http://dx.doi.org/10.1007/s10973-007-8953-3.

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23

Shrestha, Prem Kumar, and Pawan Raj Shakya. "Synthesis and Spectral Studies of Some Homo Dinuclear Lanthanide(III) Complexes of a Mesogenic Schiff Base." Acta Chimica Slovenica 68, no. 4 (2021): 904–12. http://dx.doi.org/10.17344/acsi.2021.6887.

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A mesogenic Schiff base, N,N’-di(4-decyloxysalicylidene)-1’,8’-diamino-3’,6’-dioxaoctane (H2L) and a series of homo dinuclear lanthanide(III) complexes of the type [Ln2(LH2)3(NO3)4](NO3)2, (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, and Ho) were synthesized and characterized by elemental analysis, mass spectrometry, FTIR, and NMR spectral techniques. The IR and NMR spectral evidences imply bonding of a neutral bidentate H2L species through two phenolate oxygen atoms in its zwitterionic form to LnIII, rendering the overall geometry of the complexes as a seven-coordinate polyhedron – possibly distorte

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24

Naik, Vinayak M., and Nirmalkumar B. Mallur. "Synthesis and Characterization of Lanthanide(III) Nitrate Complexes with Terdentate ONO Donor Hydrazone Derived from 2-Benzimidazolyl Mercaptoaceto Hydrazide and o-Hydroxy Aromatic Aldehyde." E-Journal of Chemistry 8, no. 4 (2011): 1900–1910. http://dx.doi.org/10.1155/2011/743948.

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A few eight coordinated complexes of lanthanide(III) nitrate with 2-benzimidazolyl mercaptoaceto hydrazone ligand (LH2) with the general formula [Ln(LH)2NO2]H2O (where Ln = La, Pr, Nd, Sm and Gd) have been synthesized and characterized by elemental analysis, magnetic susceptibility, molar conductance, UV-Visible, IR and1H NMR spectral studies. The experimental data sustain stoichiometry of 1:2 (metal/ligand) for the complexes. The spectral data shows that the ligand reacts in keto form and behaves as monobasic terdentate in nature. The nitrate appears to coordinate in the bidentate fashion to

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25

Zhukov, Igor V., Lyudmila A. Lapkina, Yuliya G. Gorbunova, Vladimir E. Larchenko, and Aslan Yu Tsivadze. "Electrochemical and spectral properties of tris[tetra(15-crown-5)phthalocyaninato]dilutetium(III)." Journal of Porphyrins and Phthalocyanines 09, no. 01 (2005): 1–6. http://dx.doi.org/10.1142/s1088424605000022.

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Tris[tetra(15-crown-5)phthalocyaninato]dilutetium(III) ( R 4 Pc )3 Lu 2, whose structure had been confirmed earlier by X-ray analysis, was further examined by physicochemical studies. The redox properties of this complex were investigated by cyclic voltammetry. The spectroelectrochemical study of this compound has been performed for the first time. Based on the results obtained and analysis of literature data, an electrochemical criterion related to double- and triple-decker structure of lanthanide phthalocyanines has been proposed. IR and 1 H NMR data are also reported.

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26

B., Keshavan, and G. Chandrashekara P. "Synthesis, characterization and spectral studies of lanthanide(III) nitrate complexes of 1 0-[ (1-methyl-3-piperidyl)methyl] phenothiazine." Journal of Indian Chemical Society Vol. 76, Apr 1999 (1999): 182–84. https://doi.org/10.5281/zenodo.5848112.

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Department of Studies in Chemistry, University of Mysore, Mysore-570 006, India <em>Manuscript received 17 August 1998, accepted 8 December 1998</em> Eight coordinated lanthanide(III) nitrate complexes with 10-[(1-methyl-3-piperidyl)methyl)phenothiazine (Mepazine) having the general formula [Ln(MZ)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> (where Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and MZ = Mepazine), have been prepared and characterized by analytical, conductance, infrared, .electronic and magnetic studies. The complexes show 1 : 1 electrolytic behavi

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27

Sulekh, Chandra, Raizada Smriti, and Rani Soni. "Lanthanide complexes of tetradentate macrocyclic ligand Synthesis and spectroscopic investigation." Journal of Indian Chemical Society Vol. 85, Aug 2008 (2008): 783–91. https://doi.org/10.5281/zenodo.5819416.

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Department of Chemistry, Zakir Husain College (University of Delhi), JLN Marg, New Delhi-11 0 002, India Department of Chemistry, M. M. H. College, Ghaziabad-20 1 001, Uttar Pradesh, India <em>E-mail :</em> schandra _ OO@yahoo. com; soni _ teotia81 @yahoo. co. in       Fax : 91-11-23215906 <em>Manuscript received 15 October 2007, revised 13 May 2008, accepted 16 May 2008</em> In the present paper, the lanthanide complexes derived from (1,5,8,12-tetraaza-2,4,9,11-tetramethyl cyclotetraaza-1,4,8,11-tetraene) were synthesized. The general composition of the complexes is [Ln(L)

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Basheer Hussein, Kamaran, and Sangar Sabah Sabir. "Synthesis and Biological Activity of Dysprosium Lanthanide Complex with Azo Ligand." Diyala Journal of Medicine 25, no. 1 (2023): 147–58. http://dx.doi.org/10.26505/djm.25017161220.

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Background: The present study describes complex reaction between 4-(2-Thiazolylazo)resorcinol (TAR) and Dy(III) metal ion. The TAR compound is known to form coloured chelates with various lanthanide metal ions . Researches done in the field of azo complexes is relatively little. Objective: To Dysprosiumchloride was selected as a metallic salt, coordination complex of Dy(III) with TAR ligand were prepared, Dysprosium metal ion get chelates as it react with TAR. It’s been recognized for along interval of time that the azo group has the ability to develop a coordinate fitting with metal ions. Dy(

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Attia, M. S., M. H. Khalil, M. S. A. Abdel-Mottaleb, M. B. Lukyanova, Yu A. Alekseenko, and Boris Lukyanov. "Effect of complexation with lanthanide metal ions on the photochromism of (1,3,3-trimethyl-5′-hydroxy-6′-formyl- indoline-spiro2,2′-[2h]chromene) in different media." International Journal of Photoenergy 2006 (2006): 1–9. http://dx.doi.org/10.1155/ijp/2006/42846.

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Complexation of lanthanide ions {Ln(III) ions [Tb(III), Eu(III), or Sm(III)]} with the spiropyran-derived merocyanine obtained in dark and under steady irradiation of indoline spiropyran (1,3,3-trimethyl-5′-hydroxy-6′-formyl-indoline-spiro-2,2′-[2H]chromene) induces a noticeable hypsochromic shift of about 10–110 nm of its visible absorption band concomitant with hypochromic effect and influences its thermal bleaching in the dark. The effect of lanthanide ions and medium on photochromic, spectral-and-kinetic, and luminescence properties of the spiropyran and its complexes in solution and polym

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E., M. Jincy, K. Rejimon P., and K. Muraleedharan Nair M. "SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL STUDIES OF SOME LANTHANIDE (III) COMPLEXES WITH A TRIDENTATE ONO DONOR SCHIFF BASE LIGAND." International Journal of Applied and Advanced Scientific Research 2, no. 2 (2017): 246–51. https://doi.org/10.5281/zenodo.1066089.

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Some new lanthanide(III) complexes- La(III), Ce(III), Pr(III) and Nd(III) have been synthesised from Schiff base ligand 4-{[(2-hydroxyphenyl)imino]methyl}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (L<sub>1</sub>) whose precursors are 4-antipyrine carboxaldehyde   and 2-aminophenol. The metal to ligand ratio (1:2) and the general formula [Ln(L<sub>1</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> were established by elemental analysis, conductivity measurements, spectral techniques such as IR, UV-Visible, <sup>1</sup>H NMR as well as magnetic susceptibility meas

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31

Singh, Longjam Jaideva, and Rajkumar Hemakumar Singh. "Synthesis and Characterization of Heteronuclear Copper(II)-Lanthanide(III) Complexes of N,N′-1,3-Propylenebis(Salicylaldiminato) Where Lanthanide(III) = Gd or Eu." International Journal of Inorganic Chemistry 2013 (May 28, 2013): 1–9. http://dx.doi.org/10.1155/2013/281270.

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Three complexes, namely, [Cu(salbn)] (1), [Cu(salbn)Gd(NO3)3·H2O] (2), and [Cu(salbn)Eu(NO3)3·H2O] (3) where salbn = N,N′-1,3-propylenebis (salicylaldiminato) have been synthesized and characterized by elemental analyses, ICP-AES, IR, UV, NMR, MS, EDX, powder XRD, and EPR spectroscopies. The EDX results suggest the presence of two different metal ions in heteronuclear complexes (2) and (3). The ligand(salbn), complex (1), and complex (3) crystallize in triclinic system while complex (2) crystallizes in monoclinic system. The EPR studies suggest that [Cu(salbn)] complex is tetragonally coordina

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32

Agarwal, R. K., and S. K. Gupta. "Magneto, spectral and thermal studies of lanthanide(III) chloride complexes of 5,6-benzoquinoline N-oxide." Thermochimica Acta 99 (March 1986): 357–62. http://dx.doi.org/10.1016/0040-6031(86)85298-4.

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33

Cao, Xiaoyan, Norah Heinz, Jun Zhang, and Michael Dolg. "The first water coordination sphere of lanthanide(iii) motexafins (Ln-Motex2+, Ln = La, Gd, Lu) and its effects on structures, reduction potentials and UV-vis absorption spectra. Theoretical studies." Physical Chemistry Chemical Physics 19, no. 30 (2017): 20160–71. http://dx.doi.org/10.1039/c7cp02861j.

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34

Qurratul, Ain, Prakash Pandey Om, and Kumar Sengupta Soumitra. "Synthesis, spectral characterization, thermal and antimicrobial studies of neodymium(III) and samarium(III) complexes with 1,2,4-triazole Schiff bases." Journal of Indian Chemical Society Vol. 91, Oct 2014 (2014): 1899–907. https://doi.org/10.5281/zenodo.5733854.

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Chemistry Department, D. D. U. Gorakhpur University, Gorakhpur-273 009, Uttar Pradesh, India <em>E-mail</em> : sengupta@hotmail.co.uk <em>Manuscript received online 03 April 2014, accepted 27 May 2014</em> A series of metal complexes of Nd<sup>III</sup> and Sm<sup>III</sup> of type [Ln(L)Cl(H<sub>2</sub>O)<sub>2</sub> ] have been synthesized with some biologically active ligands (LH<sub>2</sub> ). These ligands were prepared by the reactions of 3-[2-(1<em>H</em>-indol-3-yl)ethyl]-5-hydrazinyl-4<em>H</em>-1,2,4-triazole-4-amine with aryl aldehyde/ketone. The structures of the complexes have bee

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35

R., K. Dubey, and Mariya Ayesha. "Synthesis and structural {IR, 1H NMR, FAB-MS, XRD and magnetic} studies of some lanthanide complexes with salicylidene-2-aminopyridine." Journal of Indian Chemical Society Vol. 89, Jan 2012 (2012): 51–56. https://doi.org/10.5281/zenodo.5751274.

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Synthetic Inorganic and Metallo-organic Research Laboratory, Department of Chemistry, University of Allahabad, Al\ahabad-211 002, Uttar Pradesh, India <em>E-mail</em> : rajalkoxy@yahoo.com <em>Manuscript received 18 November 2010, revised 29 March 2011, accepted 20 May 2011</em> Lanthanide complexes of the type [(CI)<sub>2</sub>Ln(L)(H<sub>2</sub>0)<sub>4</sub>] (1-3) and [(CI)Ln(L)<sub>2</sub>(H<sub>2</sub>0)<sub>3</sub>] (4-6) [where Ln = Gd<sup>III</sup>, Sm<sup>III</sup> and Y<sup>III</sup> , L = Schiff base ligand; salicylidene-2-aminopyridine (sap<em>H</em>)] were synthesized and charact

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36

Chiriac, Florentina L., Monica Iliş, Augustin Madalan, Doina Manaila-Maximean, Mihail Secu, and Viorel Cîrcu. "Thermal and Emission Properties of a Series of Lanthanides Complexes with N-Biphenyl-Alkylated-4-Pyridone Ligands: Crystal Structure of a Terbium Complex with N-Benzyl-4-Pyridone." Molecules 26, no. 7 (2021): 2017. http://dx.doi.org/10.3390/molecules26072017.

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This work focuses on the investigation of the liquid crystalline behavior and luminescence properties of the lanthanide complexes of Eu(III), Sm(III) and Tb(III) with N-biphenyl-alkylated-4-pyridone ligands. The organic ligands having a biphenyl group attached via a long flexible spacer with either 9 or 10 carbon atoms were synthesized by the reaction between 4-hydroxypyridine and the corresponding bromide compounds. The chemical structures of the organic and lanthanide complexes were assigned based on elemental analysis, single-crystal X-ray diffraction, 1H, 13C NMR and IR spectroscopies, and

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37

Emandi, Anca, Mariana Balasoiu, and Tudor Rosu. "New Complexes of Pr(III), Sm(III), Gd(lll), Gd(III), La(III) 1-(2-Benzthyazolyl)-3-methyl-4-azo-(4-nitrophenyl)-Pyrazolyn-5-one." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 6, no. 6 (1998): 53–62. http://dx.doi.org/10.48141/sbjchem.v6.n6.1998.55_1998.pdf.

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1-(2-Benzthyazolyl)-3-methyl-4-azo-(4-nitrophenyl)-Pyrazolyn-5-one (HL) possesses a chelating behavior. Its chelates with a number of trivalent lanthanide ions Pr(III), Sm(III),Gd(III), Ho(III), La(III) of the type Na3[Ln(L)2(OH)4] have been isolated and characterized on the basis of their elemental analyses, IR and visible spectra, magnetic and molar conductance studies, thermal and X-ray analysis and molecular weight determinations. All chelates have a monomeric octa-coordinated stn1cture and square antiprismatic (C2) symmetry.

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38

Shrestha, Prem, and Pawan Shakya. "Ligational aspects of some 4f metal complexes of a mesogenic Schiffbase, N,N’- di-(4-dodecyloxysalicylidene)-1’,3’-diaminopropane: Synthesis and spectral studies." Journal of Nepal Chemical Society 43, no. 1 (2022): 114–23. http://dx.doi.org/10.3126/jncs.v43i1.46958.

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A liquid crystalline (smectic-F and smectic-A phases)Schiff base, N,N′-di-(4-dodecyloxysalicylidene)-1′,3′-diaminopropane(abbreviated as H2L) and a series of lanthanide (III) complexes of the type [Ln2(LH2)3(NO3)4](NO3)2, (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Ho) have been synthesized and characterized by elemental analysis, mass spectrometry, FTIR, and UV-Vis spectral techniques. The IR spectral data imply bidentate chelation of the Schiff base in its zwitterionic form (as LH2) to the LnIII ions through two phenolate oxygens, rendering the overall geometry of the complexes possibly to dist

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39

K., Mohanan, and Thankamony M. "Studies on lanthanide(III) complexes of 2-(N-benzoin)amino-3-carboxyethyl4,5,6, 7-tetrahydrobenzo[b]thiophen." Journal of Indian Chemical Society Vol. 89, Feb 2012 (2012): 155–61. https://doi.org/10.5281/zenodo.5752366.

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Department of Chemistry. University of Kerala, Kariavattom Campus, Trivandrum-695 581, Kerala, India <em>E-mail </em>: drkmohanan@rediffmail.com Department of Chemistry, Sree Narayana College, Punalur-691 305, Kerala, India <em>Manuscript received 09 June 2010, revised 31 May 2011, accepted 20 June 2011</em> Condensation of 2-amino-3-carboxyethyl-4,5,6,7-tetrahydrobenzo[b)thiophene with benzoin yielded a potentially tridentate heterocyclic Schiff base 2-(<em>N</em>-benzoin)amino-3-carboxyethyl-4,5,6, 7-tetrahydrobenzo[b )thiophene (HBAT) which formed a series of complexes with lanthanide(III)

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40

Rashmi, Singhai, K. Tiwari V., and N. Limaye S. "Trends in spectral parameters and nephelauxetic ratio values for some lanthanoid(III) tyrosine complexes. Part-III." Journal of Indian Chemical Society Vol. 81, Oct 2004 (2004): 879–80. https://doi.org/10.5281/zenodo.5832732.

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Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003, India <em>E-mail</em> : snl222@yahoo.co.in /tiwari_rashmi_chem@yahoo.com <em>Manuscript received 20 August 2003. revised 9 March 2004, accepted 11 May 2004</em> Electronic spectral studies of [Ln(III).L] complexes, where, Ln = Pr, Nd and Er with tyrosine (tyr) have been undertaken with a view to evaluate the oscillator strengths<strong> </strong>(<em>f</em><sub>JO</sub>), Judd-Ofelt parameters (τ<sub>λ</sub>), inter-electronic repulsion Racah parameters<strong> </strong>(δ<em>E</em><sup>K</sup>) and nephelauxet

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41

Xiang, Zheng, Yue-Bin Shan, Tao Li, Chang-Cang Huang, Xi-He Huang, and Mei-Jin Lin. "Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization." Acta Crystallographica Section C Structural Chemistry 75, no. 1 (2019): 38–45. http://dx.doi.org/10.1107/s2053229618017357.

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Naphthalenediimides, an attractive class of electron-deficient organic dyes with rich redox and photoredox properties, have been investigated extensively as building blocks for coordination networks or metal–organic frameworks in recent decades. However, most of the available work has focused on d-block metal cations rather than f-block lanthanide ions, whose complexes exhibit a large variability in coordination numbers. In this article, four coordination polymers composed of naphthalenediimides and lanthanide cations, namely catena-poly[[[tris(nitrato-κ2 O,O′)lanthanide]-bis{μ-N,N′-bis[(1-oxi

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42

S., Vidyasagar Babu, and Hussain Reddy K. "Synthesis, characterization, luminescence and DNA binding properties of LnIII complexes with a pentadentate Schiff base ligand." Journal of Indian Chemical Society 93, Mar 2016 (2016): 293–304. https://doi.org/10.5281/zenodo.5638876.

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Department of Chemistry, Sri Krishnadevaraya University, Anantapur-515 003, Andhra Pradesh, India <em>E-mail</em> : khussainreddy@yahoo.com <em>Manuscript received online 28 June 2015, accepted 25 August 2015</em> Schiff base ligand (<em>N</em>,<em>N</em>-bis(2-hydroxy-1-naphthylidene) 1,3-diiminopropane-2-ol) (H<sub>3</sub>L) and its lanthanide complexes [LnL(H<sub>2</sub>O)<sub>2</sub>] [Ln = La, Ce, Pr, Nd and Sm] are synthesized and characterized based on elemental analyses, molar conductance, IR, UV-Visible, cyclic voltammetry, TGA, X-ray powder diffraction and mass spectral studies.

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43

Hatzis, Alexander, and Robert Rothchild. "1H NMR Spectral Simplification with Achiral and Chiral Lanthanide Shift Reagents. Part III:* Vinclozolin." Applied Spectroscopy 40, no. 6 (1986): 743–45. http://dx.doi.org/10.1366/0003702864508359.

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The 60 MHz 1H NMR spectra of racemic vinclozolin, 1, have been studied at 28° in CDCI3 solution with the achiral reagent tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)europium(III), 2, and the chiral reagents tris[3-(trifluoromethylhydroxymethylene)- d-camphorato] europium(III), 3, and tris[3-(heptafluoropropylhydroxymethylene)- d-camphorato]europium(III), 4. Reagent 3 produced only small lanthanide-induced shifts and no observable enantiomeric shift differences, ΔΔδ, with 3:1 molar ratios as high as 1.40. In contrast, chiral reagent 4 produced substantial ΔΔδ for the proton, H

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44

Rao, Thatavarthi R., and Genda Singh. "Synthesis and spectral studies ofo-hydroxyacetophenone (N-benzoyl)glycyl hydrazone and some of its lanthanide(III) complexes." Transition Metal Chemistry 14, no. 6 (1989): 471–77. http://dx.doi.org/10.1007/bf01092593.

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45

Ghasia, S., R. Regar, and H. S. Bhandari. "Micelle Sensitized Physicochemical Studies on Erbium(III) Complexes with Hypoglycemic Sulfonylurea Drugs." Research Journal of Chemistry and Environment 27, no. 3 (2023): 64–73. http://dx.doi.org/10.25303/2703rjce064073.

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Hypoglycemic sulfonylurea derivatives ligands viz. glimepiride, glibenclamide, gliclazide and glipizide show interaction with lanthanide metal Er (III) in non-micellar and micellar medium. Anionic, cationic and non-ionic surfactant micellar media show great variation in oscillator strength of Er (III) with hypoglycemic sulfonylurea drugs as reflected in UVVisible absorption spectra. Interpretation of UVVisible absorption spectra produced that 4G11/2 ← 4I15/2 and 2H11/2 ← 4I15/2 electronic transition bands show different behavior on account of oscillator strength (P) compared to other electroni

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46

Ferenc, W., A. Walk�w-Dziewulska, and B. Bocian. "Thermal and spectral studies of 2,4,5-trimethoxybenzoates of heavy lanthanides(III) and yttrium(III)." Journal of Thermal Analysis and Calorimetry 79, no. 1 (2005): 145–50. http://dx.doi.org/10.1007/s10973-004-0576-3.

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47

Qi, Ming-Hui, and Guo-Fa Liu. "Synthesis, electrochemical, photovoltaic, and photo-physical properties on the lanthanide(III) complexes of acetylacetonate and meso-tetraalkyltetrabenzoporphyrin with electric-field induction." Journal of Porphyrins and Phthalocyanines 08, no. 10 (2004): 1187–95. http://dx.doi.org/10.1142/s1088424604000520.

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Lanthanide(III) complexes with acetylacetonate and meso-tetraalkyltetrabenzoporphyrin (TATBP) having the general formula Ln ( TATBP )acac (where Ln = Tb , Dy , Ho , Er , Tm , Yb ; A = C 12 H 25; Hacac = acetylacetone) are reported. These compexes have been studied by elemental analyses, ultraviolet visible spectra, infrared spectra, molar conductance, 1 H NMR spectra, cyclic voltammetry, surface photovoltage spectroscopy (SPS), and luminescence spectroscopy. The infrared spectral bands of the ligand and complexes were assigned. In dimethylformamide (DMF), 0.1 M tetrabutylammonium perchlorate (

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48

Lam, Sio-Hong, Hsin-Yi Hung, Ping-Chung Kuo, Daih-Huang Kuo, Fu-An Chen, and Tian-Shung Wu. "Application of Lanthanide Shift Reagent to the 1H-NMR Assignments of Acridone Alkaloids." Molecules 25, no. 22 (2020): 5383. http://dx.doi.org/10.3390/molecules25225383.

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This study investigates the application of the paramagnetic shift reagent tris(dipivaloylmethanato)-europium(III) in NMR spectral studies of permethoxyacridone alkaloids (1–3) and pyranoacridone alkaloids (4–6). The induced chemical shifts (∆δ) of all protons were observed for the same molecule, and were compared to deduce the positions resulting from the distance nearby the Eu(dpm)3. Assignment of the H-2, H-4 and H-8 of polysubstituted acridones could be distinguished based on the least-squares method of lanthanide-induced shifts plotted against the mole ratios of Eu(dpm)3 to the substrate.

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49

Ivakha, Nadiia, Oleksandra Berezhnytska, Elena Trunova, and Oleksandr Rohovtsov. "SYNTHESIS AND RESEARCH OF LANTHANIDE-CONTAINING HYBRID MATERIALS BASED ON POLYHEDRAL OLIGOMERIC SILSESQUIOXANES." Ukrainian Chemistry Journal 86, no. 6 (2020): 74–86. http://dx.doi.org/10.33609/2708-129x.86.6.2020.74-86.

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New hybrid materials were synthesized based on meteacroacetophenate neodymium (III) and erbium (III) and polyhedral oligomeric sissesquioxane POSS formula C24H72Cl8N8O12Si8. A warehouse has been put in place for a new synthesis. In the IR spectra of the synthesized hybrid materials in the range of 400–650 cm–1 there are oscillation bands that correspond to the valence oscillations of the bonds (Ln-O) and (Ln-N) and the deformation oscillations of the chelate ring. The decrease in intensity compared to the spectra of Ln(mphpd)3 complexes is due to the appearance of valence oscillations of the L

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50

Wang, Hua-Rui. "Syntheses directed by ionic liquids: structures and properties of six novel lanthanide 1,3,5-benzenetrisbenzoate frameworks." Zeitschrift für Naturforschung B 77, no. 2-3 (2022): 149–55. http://dx.doi.org/10.1515/znb-2021-0179.

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Abstract Reactions of lanthanide nitrate, 1,3,5-benzenetrisbnzoic acid (H3BTB) and [RMI]Br ionic liquids (RMI = 1-alkyl-3-methylimidazolium; R = ethyl, propyl or butyl), gave rise to six novel lanthanide–organic frameworks (LOFs) [Ln(BTB)H2O], where Ln = Nd 1, Sm 2, Gd 3, Dy 4, Ho 5 and Er 6. These compounds have been characterized by elemental analysis, IR spectra, thermogravimetric analysis, single-crystal and powder X-ray diffraction. Compounds 1–6 are isostructural and consist of infinite rod-shaped lanthanide-carboxylate building units, which are further bridged by trigonal-planar BTB lig

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