Issue 45, 2013

Methanol mediated crystal transformations in a solvatochromic metal organic framework constructed from Co(ii) and 4-(4-pyridyl) benzoate

Abstract

The structural transformations of compound 1 {[Co(44pba)2]4·(DMF)3·(EtOH)0.25·(H2O)4}n [44pba = 4-(4-pyridyl) benzoate] were followed during the exchange of DMF and ethanol molecules by methanol at room temperature. The new phases obtained 2 {[Co(44pba)2]·(MeOH)2.5·(H2O)}n, 3 {[Co(44pba)2(MeOH)2]2·(MeOH)2.5·(H2O)2}n and 4 {[Co(44pba)2(MeOH)2]·(MeOH)0.5·(H2O)0.5}n were studied using differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction methods. The final phase 4 reverts back to 1 upon soaking 4 in a dry DMF–ethanol mixture as evidenced by the powder diffraction data and infrared spectra.

Graphical abstract: Methanol mediated crystal transformations in a solvatochromic metal organic framework constructed from Co(ii) and 4-(4-pyridyl) benzoate

Supplementary files

Article information

Article type
Paper
Submitted
08 Jun 2013
Accepted
23 Jul 2013
First published
23 Jul 2013
This article is Open Access
Creative Commons BY license

CrystEngComm, 2013,15, 9521-9529

Methanol mediated crystal transformations in a solvatochromic metal organic framework constructed from Co(II) and 4-(4-pyridyl) benzoate

G. Mehlana, G. Ramon and S. A. Bourne, CrystEngComm, 2013, 15, 9521 DOI: 10.1039/C3CE41064A

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