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Issue 14, 2012
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Spectroscopic and adsorptive studies of a thermally robust pyrazolato-based PCP

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Abstract

The pyrazolato-based PCP [Ni84-OH)44-OH2)24-PBP)6] (NiPBP, H2PBP = 4,4′-bis(1H-pyrazol-4-yl)biphenyl), whose 3-D architecture is built upon octametallic hydroxo clusters reciprocally connected by organic spacers, is a very promising candidate for gas adsorption applications, owing to its remarkable thermal stability (up to 400 °C in air) and its high void volume (70%). As such, NiPBP was selected as a proof-of-concept material to demonstrate how an optimized set of solid state techniques can concur to create a comprehensive and coherent picture, relating (average and local) structural features to adsorptive properties. To this aim, the response of NiPBP toward different gases, retrieved by gas adsorption measurements (N2 at 77 K, in the low pressure region; H2 at 77 K, in the high pressure region), was explained in terms of local-level details, as emerged by coupling electronic, X-ray (absorption and emission), and variable temperature IR spectroscopy.

Graphical abstract: Spectroscopic and adsorptive studies of a thermally robust pyrazolato-based PCP

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Article information


Submitted
05 Nov 2011
Accepted
16 Jan 2012
First published
01 Mar 2012

Dalton Trans., 2012,41, 4012-4019
Article type
Paper

Spectroscopic and adsorptive studies of a thermally robust pyrazolato-based PCP

L. Mino, V. Colombo, J. G. Vitillo, C. Lamberti, S. Bordiga, E. Gallo, P. Glatzel, A. Maspero and S. Galli, Dalton Trans., 2012, 41, 4012
DOI: 10.1039/C2DT12121B

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