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Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies. / Markelov, D.A.; Matveev, V.V.; Ingman, P.; Lahderanta, E.; Boiko, N.I.

In: Journal of Chemical Physics, Vol. 135, No. 12, 2011, p. 124901_1-5.

Research output: Contribution to journal › Article

Harvard

Markelov, DA, Matveev, VV, Ingman, P, Lahderanta, E & Boiko, NI 2011, 'Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies', Journal of Chemical Physics, vol. 135, no. 12, pp. 124901_1-5. https://doi.org/DOI: 10.1063/1.3638177

APA

Markelov, D. A., Matveev, V. V., Ingman, P., Lahderanta, E., & Boiko, N. I. (2011). Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies. Journal of Chemical Physics, 135(12), 124901_1-5. https://doi.org/DOI: 10.1063/1.3638177

Vancouver

Markelov DA, Matveev VV, Ingman P, Lahderanta E, Boiko NI. Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies. Journal of Chemical Physics. 2011;135(12):124901_1-5. https://doi.org/DOI: 10.1063/1.3638177

Author

Markelov, D.A. ; Matveev, V.V. ; Ingman, P. ; Lahderanta, E. ; Boiko, N.I. / Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies. In: Journal of Chemical Physics. 2011 ; Vol. 135, No. 12. pp. 124901_1-5.

BibTeX

@article{27ecd29e24b040e4ac04797ce63b4e81,
title = "Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies",
abstract = "A new theoretical description of the interior mobility of carbosilane dendrimers has been tested. Experiments were conducted using measurements of the 1H NMR spin-lattice relaxation time, T1H, of two-, three- and four-generation carbosilane dendrimers with three different types of terminal groups in dilute chloroform solutions. Temperature dependences of the NMR relaxation rate, 1/T1H, were obtained for the internal CH2 – groups of the dendrimers in the range of 1/T1H maximum, allowing us to directly evaluate the average time of the internal spectrum for each dendrimer. It was found that the temperature of 1/T1H maximum is practically independent of the number of generations, G; therefore, the theoretical prediction was confirmed experimentally. In addition, the average time of the internal spectrum of carbosilane dendrimers was found to be near 0.2 ns at room temperature, and this value correlates well with the values previously obtained for other dendrimer structures using other experimental techniques.",
author = "D.A. Markelov and V.V. Matveev and P. Ingman and E. Lahderanta and N.I. Boiko",
year = "2011",
doi = "DOI: 10.1063/1.3638177",
language = "English",
volume = "135",
pages = "124901_1--5",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics",
number = "12",

}

RIS

TY - JOUR

T1 - Average relaxation time of internal spectrum for carbosilane dendrimers: Nuclear magnetic resonance studies

AU - Markelov, D.A.

AU - Matveev, V.V.

AU - Ingman, P.

AU - Lahderanta, E.

AU - Boiko, N.I.

PY - 2011

Y1 - 2011

N2 - A new theoretical description of the interior mobility of carbosilane dendrimers has been tested. Experiments were conducted using measurements of the 1H NMR spin-lattice relaxation time, T1H, of two-, three- and four-generation carbosilane dendrimers with three different types of terminal groups in dilute chloroform solutions. Temperature dependences of the NMR relaxation rate, 1/T1H, were obtained for the internal CH2 – groups of the dendrimers in the range of 1/T1H maximum, allowing us to directly evaluate the average time of the internal spectrum for each dendrimer. It was found that the temperature of 1/T1H maximum is practically independent of the number of generations, G; therefore, the theoretical prediction was confirmed experimentally. In addition, the average time of the internal spectrum of carbosilane dendrimers was found to be near 0.2 ns at room temperature, and this value correlates well with the values previously obtained for other dendrimer structures using other experimental techniques.

AB - A new theoretical description of the interior mobility of carbosilane dendrimers has been tested. Experiments were conducted using measurements of the 1H NMR spin-lattice relaxation time, T1H, of two-, three- and four-generation carbosilane dendrimers with three different types of terminal groups in dilute chloroform solutions. Temperature dependences of the NMR relaxation rate, 1/T1H, were obtained for the internal CH2 – groups of the dendrimers in the range of 1/T1H maximum, allowing us to directly evaluate the average time of the internal spectrum for each dendrimer. It was found that the temperature of 1/T1H maximum is practically independent of the number of generations, G; therefore, the theoretical prediction was confirmed experimentally. In addition, the average time of the internal spectrum of carbosilane dendrimers was found to be near 0.2 ns at room temperature, and this value correlates well with the values previously obtained for other dendrimer structures using other experimental techniques.

U2 - DOI: 10.1063/1.3638177

DO - DOI: 10.1063/1.3638177

M3 - Article

VL - 135

SP - 124901_1-5

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 12

ER -

ID: 5128966