Construction of bimodal silsesquioxane-based porous materials from triphenylphosphine or triphenylphosphine oxide and their size-selective absorption for dye molecules

Phosphorus-containing porous materials from octavinylsilsesquioxane possessed unique bimodal structure and exhibited an excellent size-selective absorption for dye molecules.

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Selective Absorption of Hydrophobic Cations in Nanostructured Porous Materials from Crosslinked Hydrogen-Bonded Columnar Liquid Crystals

Advanced Materials Interfaces ◽

10.1002/admi.201500022 ◽

2015 ◽

Vol 2 (7) ◽

pp. 1500022 ◽

Cited By ~ 14

Author(s):

Gerardus M. Bögels ◽

Huub P. C. van Kuringen ◽

Ivelina K. Shishmanova ◽

Ilja K. Voets ◽

Albertus P. H. J. Schenning ◽

...

Keyword(s):

Liquid Crystals ◽

Porous Materials ◽

Selective Absorption ◽

Hydrogen Bonded

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Спектрально-люминесцентные свойства разнолигандных комплексных соединений европия(III) с n-метилбензойной кислотой

Журнал технической физики ◽

10.21883/os.2019.11.48512.71-19 ◽

2019 ◽

Vol 127 (11) ◽

pp. 765

Author(s):

И.В. Калиновская ◽

А.Н. Задорожная

Keyword(s):

Electronic Absorption Spectra ◽

Excitation Energy Transfer ◽

Luminescent Properties ◽

Triphenylphosphine Oxide ◽

Luminescence Spectra ◽

Nitrogen And Phosphorus ◽

Excitation Spectra ◽

Stark Structure ◽

Phosphorus Containing ◽

Neutral Ligands

Abstract The spectral-luminescent properties of europium(III) complexes with p -methylbenzoic acid and nitrogen- and phosphorus-containing neutral ligands of compositions [Eu( p -MBA)_3 · D]_2 · x H_2O and [Eu( p ‑MBA)_3 · 2H_2O]_ n , where p -MBA is the anion of p -methylbenzoic acid and D is 1,10-phenanthroline (phen), 2,2' dipyridyl (dipy), triphenylphosphine oxide (tppo) ( х = 0), hexamethylphosphortriamide (hmpa) ( x = 1), or benzotriazole (bt) ( x = 2) are studied. The electronic absorption spectra, the luminescence excitation spectra, and the Stark structure of ^5 D _0−^7 F _ j ( j = 0–2) electronic transitions in low-temperature luminescence spectra of complex europium(III) p -methylbenzoates are analyzed. It is found that the excitation energy transfer to europium ions occurs from the levels of both p -methylbenzoic acid and neutral ligands.

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Спектрально-люминесцентные свойства разнолигандных комплексных соединений европия(III) c o-метоксибензойной кислотой и фосфорсодержащими нейтральными лигандами

Журнал технической физики ◽

10.21883/os.2020.06.49397.352-19 ◽

2020 ◽

Vol 128 (6) ◽

pp. 692

Author(s):

И.В. Калиновская

Keyword(s):

Electronic Absorption Spectra ◽

Mixed Ligand Complex ◽

Triphenylphosphine Oxide ◽

Luminescence Spectra ◽

Ligand Complex ◽

Excitation Spectra ◽

Hexamethylphosphoric Triamide ◽

Europium Ion ◽

Phosphorus Containing ◽

Methoxybenzoic Acid

The spectral and luminescent properties of complex compounds of europium (III) with o-methoxybenzoic acid and island-containing phosphorus-containing neutral ligands of the composition Eu (MOBA) 3 • 3Н2О and Eu (MOBA) 3 • L, where MOBA is o-methoxybenzoic acid, D is studied (hexamethylphosphoric triamide), tppo (triphenylphosphine oxide), Et6pa (hexaethylphosphotriamide). It was found that the excitation energy is transferred to the europium ion both from the levels of o-methoxybenzoic acid and from the levels of phosphorus-containing neutral ligands.The electronic absorption spectra, the luminescence excitation spectra, and the Stark structure of 5D0-7Fj (j = 0-2) electronic transitions in the luminescence spectra of mixed-ligand complex europium (III) complex o-methoxybenzoates are analyzed. Europium (III) methoxybenzoate with triphenylphosphine oxide has the highest luminescence intensity.

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Разнолигандные комплексные соединения европия (III) с o-метоксибензойной кислотой и фосфорсодержащими нейтральными лигандами

Журнал технической физики ◽

10.21883/os.2020.05.49318.310-19 ◽

2020 ◽

Vol 128 (5) ◽

pp. 612

Author(s):

И.В. Калиновская

Keyword(s):

Triphenylphosphine Oxide ◽

Complex Compounds ◽

Endothermic Effect ◽

Ligand Molecule ◽

Electronic Excitation Energy ◽

Hexamethylphosphoric Triamide ◽

Europium Ion ◽

Phosphorus Containing ◽

Neutral Ligands ◽

Methoxybenzoic Acid

The luminescent coordination multi-ligand compounds of europium (III) with o-methoxybenzoic acid and island-containing phosphorus-containing neutral ligands of the composition Eu (MOBA) 3 • 3Н2О and Eu (MOBA) 3 • L, where MOBA is o-methoxybenzoic acid, D is hmpa (D hexamethylphosphoric triamide), tppo (triphenylphosphine oxide), Et6pa (hexaethylphosphotriamide). The composition, structure, and thermal properties of complex multi-ligand compounds of europium (III) were studied. It was shown that during thermolysis, detachment of a neutral ligand molecule occurs in one stage with an endothermic effect, complex compounds are stable up to 280 С.Based on the data of IR spectroscopy, it was found that in the europium (III) o-methoxybenzoates, the o-methoxybenzoic acid is coordinated to the europium (III) o-methoxybenzoic ion in a bidentate manner. The low luminescence intensity of multi-ligand europium (III) compounds is explained by the inefficient transfer of electronic excitation energy from o-methoxybenzoic acid and phosphorus-containing neutral ligands to the europium ion.

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Quantitative Freeze Fracture Studies of Gap Junctions in Somatic Cell Hybrids, Their Parents, and Revertants

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010009107x ◽

1976 ◽

Vol 34 ◽

pp. 218-219

Author(s):

W. J. Larsen ◽

R. Azarnia ◽

W. R. Loewenstein

Keyword(s):

Gap Junctions ◽

Striated Muscle ◽

Freeze Fracture ◽

Cell Movement ◽

Dye Molecules ◽

Somatic Cell Hybrids ◽

Cell Coupling ◽

Normal Cells ◽

Mediate Cell ◽

Almost All

Although the physiological significance of the gap junction remains unspecified, these membrane specializations are now recognized as common to almost all normal cells (excluding adult striated muscle and some nerve cells) and are found in organisms ranging from the coelenterates to man. Since it appears likely that these structures mediate the cell-to-cell movement of ions and small dye molecules in some electrical tissues, we undertook this study with the objective of determining whether gap junctions in inexcitable tissues also mediate cell-to-cell coupling.To test this hypothesis, a coupling, human Lesh-Nyhan (LN) cell was fused with a non-coupling, mouse cl-1D cell, and the hybrids, revertants, and parental cells were analysed for coupling with respect both to ions and fluorescein and for membrane junctions with the freeze fracture technique.

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