Formation of Mixed Metal Cu3-xZnx(btc)(2) Frameworks with Different Zinc Contents: Incorporation of Zn2+ into the Metal-Organic Framework Structure as Studied by Solid-State NMR

Gul-E-Noor F, Jee B, Mendt M, Himsl D, Poeppl A, Hartmann M, Haase J, Krautscheid H, Bertmer M (2012)

Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2012

Journal

Journal of Physical Chemistry C American Chemical Society

Publisher: American Chemical Society

Book Volume: 116

Pages Range: 20866-20873

Journal Issue: 39

DOI: 10.1021/jp3054857

Abstract

Incorporation of Zn2+ into the Cu-3(btc)(2) metal organic framework (HKUST-1) was successfully done with Zn2+ replacing Cu2+ in the paddle wheel unit up to 21% zinc. Detailed spectroscopic characterization of the resulting binuclear Cu-Zn paddle wheel units was carried out by H-1 and C-13 solid-state nuclear magnetic resonance (SSNMR). By intensity analysis of the NMR signals a quantitative determination of the Zn2+ content incorporated into the Cu-3(btc)(2) framework is possible. X-ray and EPR data verify the analysis. Surface areas were determined for the different samples that indicate a decreasing porosity with increasing zinc content. Water molecules coordinated to the zinc atoms remain in the structure even after evacuation. Their assignment was also confirmed by calculation of the pseudocontact or dipolar shift contribution from all unpaired electrons of surrounding paddle wheels.

Authors with CRIS profile

Dieter Himsl Professur für Katalyse Martin Hartmann Professur für Katalyse

Additional Organisation(s)

Interdisziplinäres Zentrum Erlangen Catalysis Resource Center (ECRC)

Involved external institutions

Universität Leipzig DE Germany (DE)

How to cite

APA:

Gul-E-Noor, F., Jee, B., Mendt, M., Himsl, D., Poeppl, A., Hartmann, M.,... Bertmer, M. (2012). Formation of Mixed Metal Cu3-xZnx(btc)(2) Frameworks with Different Zinc Contents: Incorporation of Zn2+ into the Metal-Organic Framework Structure as Studied by Solid-State NMR. Journal of Physical Chemistry C, 116(39), 20866-20873. https://doi.org/10.1021/jp3054857

MLA:

Gul-E-Noor, Farhana, et al. "Formation of Mixed Metal Cu3-xZnx(btc)(2) Frameworks with Different Zinc Contents: Incorporation of Zn2+ into the Metal-Organic Framework Structure as Studied by Solid-State NMR." Journal of Physical Chemistry C 116.39 (2012): 20866-20873.

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