Synthesis and optical properties of nanohybrids in the system constituted by silica and lanthanide phosphoramide complexes

Khimich, N. N.; Zub, Yu. L.; Koptelova, L. A.; Mashchenko, T. S.; Troshina, E. P.; Воронков, М. Г.

doi:10.1134/s1070427206110061

Cited by 2 publications

(4 citation statements)

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“…606 Khimich et al prepared lanthanide-doped hybrid materials by hydrolysis and condensation of a trimethoxysilyl derivative of hexamethyl phosphoric triamide (HMPA) (Figure 39). 607 Corriu and co-workers incorporated the macrocyclic cyclam (1,4,8,11-tetraazacyclotetradecane) in a silica matrix (Chart 9). 608 As expected, the resulting hybrid material showed a strong tendency for complex formation with first row transition metal ions like Cu 2+ .…”

Section: Covalently Bonded Complexesmentioning

confidence: 99%

“…In addition to Eu(NO 3 ) 3 , Er(NO 3 ) 3 and Yb(NO 3 ) 3 were incorporated into silica matrices with pendant phosphine oxide groups, but no luminescence studies on these compounds were reported . Khimich et al prepared lanthanide-doped hybrid materials by hydrolysis and condensation of a trimethoxysilyl derivative of hexamethyl phosphoric triamide (HMPA) (Figure ) …”

Section: Sol−gel Hybrid Materialsmentioning

confidence: 99%

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Lanthanide-Based Luminescent Hybrid Materials

2009

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Koen Binnemans was born in Geel, Belgium, in 1970. He obtained his M. Sc. degree (1992) and Ph.D. degree (1996) in Chemistry at the Catholic University of Leuven, under the supervision of Prof. C. Go ¨rller-Walrand. In the period 1999-2005, he was a postdoctoral fellow of the Fund for Scientific Research Flanders (Belgium). He did postdoctoral work with Prof. Jacques Lucas (Rennes, France) and Prof. Duncan W. Bruce (Exeter, U.K.). In 2000, he received the first ERES Junior Award (ERES, European Rare-Earth and Actinide Society). From 2002 until 2005, he was (parttime) associate professor. Presently, he is professor of chemistry at the Catholic University of Leuven. His current research interests are metalcontaining liquid crystals (metallomesogens), lanthanide-mediated organic reactions, lanthanide spectroscopy, luminescent molecular materials, and ionic liquids.

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Section: Covalently Bonded Complexesmentioning

confidence: 99%

Section: Sol−gel Hybrid Materialsmentioning

confidence: 99%

Lanthanide-Based Luminescent Hybrid Materials

2009

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“…The ratio Si : P is still 1:1, in spite of the fact that APTES has been taken in excess. Based upon the data of elemental and X-ray phase analysis, as well as the IR spectroscopy data, the obtained product can be described as the cross-linked polymer, containing structural fragments OP(O)N(CH 2 ) 3 Si(OEt)O, P(O)OO, Si(OEt) 2 O, Si(OEt)(OPh)O to the ratio 1 : 0.6 : 0.5 : 0.1.…”

Section: Oligomersmentioning

confidence: 99%

“…Ability of sol-gel polymerization and forming coordination compounds offers a way to obtain metal-containing gels, films [1], transparent glasses [2] on their basis. Target syntheses of such compounds are based on the reaction of 3-aminoprolyltriethoxysilane (EtO) 3 SiCH 2 CH 2 CH 2 NН 2 (APTES) with the derivatives of phosphorous oxychloride ClP(O)X 2 (X = OPh, NR 2 ).…”

Section: Introductionmentioning

confidence: 99%

Reaction of 3-aminopropyltriethoxysilane with triphenylphosphate

Semyonov¹

2015

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Interaction of 3-aminopropyltriethoxysilane RNH 2 [R = (EtO) IntroductionMolecules of triethoxysilylpropylamidophosphates (EtO) 3 SiCH 2 CH 2 CH 2 NRP(O)X 2 (R = H, All; X = OR, NR 2 ) contain the easily hydrolyzed group (EtO) 3 Si and the amidophosphate fragment NRP(O)X 2 , which can form coordination compounds with d-and f-elements. Ability of sol-gel polymerization and forming coordination compounds offers a way to obtain metal-containing gels, films [1], transparent glasses [2] on their basis. Target syntheses of such compounds are based on the reaction of 3-aminoprolyltriethoxysilane (EtO) 3 SiCH 2 CH 2 CH 2 NН 2 (APTES) with the derivatives of phosphorous oxychloride ClP(O)X 2 (X = OPh, NR 2 ). Organic bases (triethylamine, pyridine) are used as acceptors of the evolving hydrogen chloride. Voluminous precipitates of triethylamine or pyridine hydrochlorides, produced in this reaction, badly thicken the reaction mixtures and demand great amounts of solvents, which need to be carefully dewatered, as the initial compounds and the products are hydrolytically unstable. In this context finding a more convenient method of obtaining alkoxysilyl derivatives of amidophosphates seems an urgent problem. The alternative way of synthesis involves the reaction of two industrial products: APTES and triorganophosphates (RO) 3 P=O, which can lead to substitution of RO groups at the phosphorus atom and production of alcohol. Nevertheless, in recently performed study [3] it has been shown that interaction of APTES with trimethylphosphate (МеО) 3 Р=О (TMP) leads to release of ethyl (not methyl) alcohol in the first stage and production of organophosphosilicates. Replacement of methyl groups in triorganophosphate by phenyl ones has led to cardinal change of the process direction, so that release of phenol and production of silicon-containing amidophosphate oligomers has been observed. In the present paper the results in investigating APTES interaction with triphenylphosphate (PhО) 3 Р=О (TPP) are described, the comparison of the related reactions is carried out, and the explanation of possible causes for different behavior of two structurally similar compounds (PhO) 3 P=O and (МеO) 3 P=O is suggested.

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Synthesis and optical properties of nanohybrids in the system constituted by silica and lanthanide phosphoramide complexes

Cited by 2 publications

References 14 publications

Lanthanide-Based Luminescent Hybrid Materials

Lanthanide-Based Luminescent Hybrid Materials

Reaction of 3-aminopropyltriethoxysilane with triphenylphosphate

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