Grafting of phosphorus-containing tetrahydroxy(thia)calixarenes on silica enhances europium(III) adsorption

被引：2

作者：

Boiko, Yuriy ^{[1
,2
]}

Belikov, Konstantin ^{[3
,4
]}

Bryleva, Ekaterina ^{[3
]}

Bunina, Zinaida ^{[3
]}

Varchenko, Victoria ^{[3
]}

Rozhenko, Alexander B. ^{[1
,5
]}

Drapailo, Andriy ^{[1
]}

Rodik, Roman ^{[1
]}

Golub, Alexander ^{[2
]}

Katz, Alexander ^{[6
]}

Kalchenko, Vitaly ^{[1
,7
]}

机构：

[1] NAS Ukraine, Inst Organ Chem, Kiev, Ukraine

[2] Natl Univ Kyiv Mohyla Acad, Kiev, Ukraine

[3] NAS Ukraine, State Sci Inst Inst Single Crystals, Kharkiv, Ukraine

[4] Kharkov Natl Univ, Kharkiv, Ukraine

[5] Natl Tech Univ Ukraine Igor Sikorsky Kyiv Polytech, Kiev, Ukraine

[6] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA USA

[7] NAS Ukraine, Inst Organ Chem, UA-02660 Kiev, Ukraine

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2023年 / 198卷 / 09期

关键词：

Calixarenes; organophosphorus ligands; silica gel; sorbents; europium; BASIS-SETS; ENERGY; CALIXARENES; APPROXIMATIONS; EXTRACTION; AMERICIUM;

D O I：

10.1080/10426507.2023.2208705

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

One pot sequential reactions of silica gel with tetrachlorosilane/triethylamine mixture and after with the conical upper rim tetraphosphorylated tetrahydroxy(thia)calixarenes yielded porous organo-inorganic sorbents modified by spatially ordered phosphonate, phosphinate or phosphine oxide groups capable of co-operative binding of metal cations. The grafting improves efficacy of europium(III) sorption by the silica gels. DFT calculations of the calixarene-Eu3+ complexes predict a calixarene flattened cone conformation with the coordination of Eu3+ cation to three of four P = O oxygen atoms and one of the aromatic systems. Adding three water molecules excludes completely cation-pi interactions.

引用

页码：715 / 722

页数：8

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