Synthesis and Optical Absorption Properties of Yttrium (III) Acylaminocarboxylates Complexes

Zhang, Ying; Gerile, Naren; Zhang, Jin Kang; Bao, Ta Na; Tegus, O.

doi:10.4028/www.scientific.net/ssp.310.34

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…218 nm, attributed to the absorption peak from the n‐π* electronic transition of the C=O chromophore in the ligands. For the Pr(oct‐phe) 3 complex (Figure 5(b)), the strong band at 241 nm can be assigned to the π‐π* electronic transition of the benzene chromophore [15] . The weak bands observed in the 400–650 nm region are characteristic of the f – f excitation of the Pr 3+ ions.…”

Section: Resultsmentioning

confidence: 98%

Synthesis, Characterization, and DFT studies of Praseodymium (III) Octanoyl‐DL‐aminocarboxylate Complexes

et al. 2022

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Rare‐earth amino acid complexes have attracted much attention for their unique properties and potential applications in various fields. In this study, we synthesized and characterized the praseodymium(III) complexes with octanoyl‐DL‐alaninates (Pr(oct‐ala)3), octanoyl‐DL‐phenylalaninate (Pr(oct‐phe)3), and octanoyl‐DL‐serinates (Pr(oct‐ser)3) ligands. Elemental analysis, NMR, and FT‐IR spectra confirmed the elemental content, and functional groups information in the synthesized complexes. The XRD profile demonstrated the amorphous structure of praseodymium(III) complexes. Polarized optical microscopy gave insight into the liquid crystal properties of the praseodymium(III) complexes. UV‐Vis and PL emission spectra illustrated the excellent optical absorption properties and emitted white light. DFT calculation confirming the chelating bidentate mode of praseodymium(III) complexes. The atoms in molecules theory calculated the topological properties of praseodymium(III) complexes. The ▿2ρ and ρc values are in the range of 0.1966–0.2019 a.u and 0.0583–0.0608 a.u, respectively, illustrating closed‐shell interactions between ligands and Pr3+.

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Section: Resultsmentioning

confidence: 98%

Synthesis, Characterization, and DFT studies of Praseodymium (III) Octanoyl‐DL‐aminocarboxylate Complexes

et al. 2022

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“…The chemical structures of the OCD were confirmed using 1 H NMR and FTIR spectroscopy. As displayed in 1 H NMR spectra (Figure B), compared with β-CD, OCD showed additional peaks at 2.38–1.02 and 0.84 ppm, which were assigned to the alkyl and −CH 3 protons of OSA, respectively. , Meanwhile, the DS of OSA on β-CD was determined using the 1 H NMR spectrum of OSA according to the equation DS = I CH 3 3 I normalH 1 , where I CH 3 and I H 1 are the 1 H NMR integrations of −CH 3 protons of OSA (0.84 ppm) and H 1 protons of β-CD (4.82 ppm), respectively . With increasing adding amount of OSA (1, 2, and 3%), the DS of OCD1, OCD2, and OCD3 were calculated as 0.0167, 0.0223, and 0.0344, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…As displayed in 1 H NMR spectra (Figure 1B), compared with β-CD, OCD showed additional peaks at 2.38−1.02 and 0.84 ppm, which were assigned to the alkyl and −CH 3 protons of OSA, respectively. 30,31 Meanwhile, the DS of OSA on β-CD was determined using the 1 H NMR spectrum of OSA according to the equation…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Development of Emulsion Gels Stabilized by Chitosan and Octenyl Succinic Anhydride-Modified β-Cyclodextrin Complexes for β-Carotene Digestion and 3D Printing

Li,

Hao,

Gao

2023

J. Agric. Food Chem.

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β-cyclodextrin (β-CD)-based emulsion gels encapsulated with nutrition for three-dimensional (3D) printing are promising, while obstacles such as low bioaccessibility of bioactive compounds and the molding process in food manufacturing hinder their application. This study intended to develop stable composite emulsion gels using the complexes of chitosan (CS) and octenyl succinic anhydride (OSA)-modified β-CD (OCD) to conquer these challenges. The esterification of OSA generated more negatively charged OCD and ester groups, which aided in the combination of OCD and CS through enhanced electrostatic and hydrogen bonding interactions. The addition of CS improved the emulsification properties of the complexes and acted as a bridge link in the aqueous phase, thereby increasing the gel strength of the composite emulsion gels. Moreover, the encapsulation of βcarotene destabilized the strength of the emulsion gels by lowering the interfacial tension. The emulsion gel stabilized by OCD3/CS-0.75% at an initial pH not only successfully encapsulated β-carotene and presented the highest bioaccessibility of 41.88 ± 0.87% in the in vitro digestion but also showed excellent 3D printability. These results provided a promising strategy to enhance the viscoelasticity of β-CD-based emulsion gels and accelerate their application in bioactive compound delivery systems and 3D food printing.

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“…They have demonstrated the luminescence mechanism and luminescence properties of organic rare earth complexes through multiple approaches of experimental verification. It can be proved from the reference [10][11][12] that the acyl group improves the solubility of amino acids, and different substituents (the hydroxyl group and the benzene ring) have a significant impact on the photophysical properties of complexes. In particular, the benzene ring expands the light absorption range of the complexes as well as the conjugation system of the structure, and thus improves the liquid crystal properties and luminescence ability of the complexes.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Structure, and Photophysical Behavior of Europium (III) Complexes of Decyl Alanine and Lauryl Alanine

Han¹,

Gerile²,

Zhang³

et al. 2023

KEM

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Two Ligands (H (dec-ala) and H (dod-ala)) prepared from decyl chloride, lauroyl chloride, and amino acids (DL-alanine), reacted with Europium chloride in methanol solution, leading to two Europium (III) complexes of Eu (dec-ala)3 and Eu (dod-ala)3.Elemental analysis, NMR, and FT-IR spectra proved the elemental content, structural information of the synthesized Europium (III) complexes. The light absorption and luminescence properties were characterized by UV-vis and PL spectra analysis. Both complexes have excellent absorption capacity in the range of 200 nm-300 nm. The ideal excitation wavelengths of these complexes are at 394 nm, and the principal emission peaks are at 590 nm, 610 nm, 650 nm, and 698 nm, which correspond to 5D0 → 7F1, 5D0 →7F2, 5D0→7F3, 5D0→7F4, respectively.

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Synthesis and Optical Absorption Properties of Yttrium (III) Acylaminocarboxylates Complexes

Cited by 3 publications

References 8 publications

Synthesis, Characterization, and DFT studies of Praseodymium (III) Octanoyl‐DL‐aminocarboxylate Complexes

Synthesis, Characterization, and DFT studies of Praseodymium (III) Octanoyl‐DL‐aminocarboxylate Complexes

Development of Emulsion Gels Stabilized by Chitosan and Octenyl Succinic Anhydride-Modified β-Cyclodextrin Complexes for β-Carotene Digestion and 3D Printing

Preparation, Structure, and Photophysical Behavior of Europium (III) Complexes of Decyl Alanine and Lauryl Alanine

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