Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds

Maxym V. Vasylyev, Sylvain Gatard, Itsik Bar-Nahum, Leonid Konstantinovski, Ellen J. Wachtel, Ronny Neumann

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Organic-inorganic hybrid compounds were prepared by the reaction of a tin chloride-substituted polyoxometalate, [PSn(Cl)W11O39] 4- with tris(2-aminoethyl)amine, and poly(propylene)imine (DAB-Am) tetraamine and octaamine dendrimers. Translational diffusion coefficients of the hybrid compounds were measured in DMSO-d6 by the stimulated echo diffusion (STE) NMR technique. Molecular radii were derived from the diffusion coefficients by the Stokes-Einstein equation and appeared to be incorrect because of fast exchange on the NMR time scale of the counter cation in the solution, which led to an averaging of the NMR signal and high diffusion coefficients. An effective hydrodynamic diameter of the [PSn(Cl)W 11O39]4--polypropylenimine octaamine hybrid adduct was measured in a light scattering experiment.

Original languageEnglish
Pages (from-to)235-243
Number of pages9
JournalJournal of Cluster Science
Volume17
Issue number2
DOIs
Publication statusPublished - Jun 2006

Fingerprint

Dendrimers
diffusion coefficient
nuclear magnetic resonance
Nuclear magnetic resonance
synthesis
dendrimers
Einstein equations
polypropylene
imines
adducts
tin
echoes
amines
counters
light scattering
Hydrodynamics
Dimethyl Sulfoxide
chlorides
hydrodynamics
Light scattering

Keywords

  • Dendrimers
  • Light scattering
  • Organic-inorganic hybrid compounds
  • PGSE- H-NMR experiments
  • Polyoxometalates

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds. / Vasylyev, Maxym V.; Gatard, Sylvain; Bar-Nahum, Itsik; Konstantinovski, Leonid; Wachtel, Ellen J.; Neumann, Ronny.

In: Journal of Cluster Science, Vol. 17, No. 2, 06.2006, p. 235-243.

Research output: Contribution to journalArticle

Vasylyev, MV, Gatard, S, Bar-Nahum, I, Konstantinovski, L, Wachtel, EJ & Neumann, R 2006, 'Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds', Journal of Cluster Science, vol. 17, no. 2, pp. 235-243. https://doi.org/10.1007/s10876-006-0057-x
Vasylyev, Maxym V. ; Gatard, Sylvain ; Bar-Nahum, Itsik ; Konstantinovski, Leonid ; Wachtel, Ellen J. ; Neumann, Ronny. / Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds. In: Journal of Cluster Science. 2006 ; Vol. 17, No. 2. pp. 235-243.
@article{449d24a6f6a74489844cf8eb6e1a93e2,
title = "Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds",
abstract = "Organic-inorganic hybrid compounds were prepared by the reaction of a tin chloride-substituted polyoxometalate, [PSn(Cl)W11O39] 4- with tris(2-aminoethyl)amine, and poly(propylene)imine (DAB-Am) tetraamine and octaamine dendrimers. Translational diffusion coefficients of the hybrid compounds were measured in DMSO-d6 by the stimulated echo diffusion (STE) NMR technique. Molecular radii were derived from the diffusion coefficients by the Stokes-Einstein equation and appeared to be incorrect because of fast exchange on the NMR time scale of the counter cation in the solution, which led to an averaging of the NMR signal and high diffusion coefficients. An effective hydrodynamic diameter of the [PSn(Cl)W 11O39]4--polypropylenimine octaamine hybrid adduct was measured in a light scattering experiment.",
keywords = "Dendrimers, Light scattering, Organic-inorganic hybrid compounds, PGSE- H-NMR experiments, Polyoxometalates",
author = "Vasylyev, {Maxym V.} and Sylvain Gatard and Itsik Bar-Nahum and Leonid Konstantinovski and Wachtel, {Ellen J.} and Ronny Neumann",
year = "2006",
month = "6",
doi = "10.1007/s10876-006-0057-x",
language = "English",
volume = "17",
pages = "235--243",
journal = "Journal of Cluster Science",
issn = "1040-7278",
publisher = "Springer New York",
number = "2",

}

TY - JOUR

T1 - Synthesis and characterization of polyoxometalate-polyamino dendritic hybrid compounds

AU - Vasylyev, Maxym V.

AU - Gatard, Sylvain

AU - Bar-Nahum, Itsik

AU - Konstantinovski, Leonid

AU - Wachtel, Ellen J.

AU - Neumann, Ronny

PY - 2006/6

Y1 - 2006/6

N2 - Organic-inorganic hybrid compounds were prepared by the reaction of a tin chloride-substituted polyoxometalate, [PSn(Cl)W11O39] 4- with tris(2-aminoethyl)amine, and poly(propylene)imine (DAB-Am) tetraamine and octaamine dendrimers. Translational diffusion coefficients of the hybrid compounds were measured in DMSO-d6 by the stimulated echo diffusion (STE) NMR technique. Molecular radii were derived from the diffusion coefficients by the Stokes-Einstein equation and appeared to be incorrect because of fast exchange on the NMR time scale of the counter cation in the solution, which led to an averaging of the NMR signal and high diffusion coefficients. An effective hydrodynamic diameter of the [PSn(Cl)W 11O39]4--polypropylenimine octaamine hybrid adduct was measured in a light scattering experiment.

AB - Organic-inorganic hybrid compounds were prepared by the reaction of a tin chloride-substituted polyoxometalate, [PSn(Cl)W11O39] 4- with tris(2-aminoethyl)amine, and poly(propylene)imine (DAB-Am) tetraamine and octaamine dendrimers. Translational diffusion coefficients of the hybrid compounds were measured in DMSO-d6 by the stimulated echo diffusion (STE) NMR technique. Molecular radii were derived from the diffusion coefficients by the Stokes-Einstein equation and appeared to be incorrect because of fast exchange on the NMR time scale of the counter cation in the solution, which led to an averaging of the NMR signal and high diffusion coefficients. An effective hydrodynamic diameter of the [PSn(Cl)W 11O39]4--polypropylenimine octaamine hybrid adduct was measured in a light scattering experiment.

KW - Dendrimers

KW - Light scattering

KW - Organic-inorganic hybrid compounds

KW - PGSE- H-NMR experiments

KW - Polyoxometalates

UR - http://www.scopus.com/inward/record.url?scp=33751539290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751539290&partnerID=8YFLogxK

U2 - 10.1007/s10876-006-0057-x

DO - 10.1007/s10876-006-0057-x

M3 - Article

VL - 17

SP - 235

EP - 243

JO - Journal of Cluster Science

JF - Journal of Cluster Science

SN - 1040-7278

IS - 2

ER -