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Issue 22, 2016
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Two-step synthesis of heterometallic coordination polymers using a polyazamacrocyclic linker

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Abstract

A new macrocyclic linker 1,4,7,10-tetraazacyclododecane-1,7-bis(4-acetamidobenzoic)-4,10-diacetic acid (H4L1) was synthesized and characterized. This linker was used to create two heterometallic coordination polymers following a two-step synthesis. This synthesis consisted of first combining this polyazamacrocyclic linker with Ni(II) or Mn(II) ions to obtain the corresponding metallomacrocyclic complexes showing non-coordinated carboxylic groups. In a second step, these metallated macrocycles were used as building units to construct two heterometallic Ni(II)–Zn(II) and Mn(II)–Zn(II) coordination polymers when combined with Zn(II) ions. In addition, a third Zn(II)–Zn(II) coordination polymer could also be synthesized by direct mixing of H4L1 with Zn(II) ions. Interestingly, the Mn(II)–Zn(II) coordination polymer exhibits a reversible type-I “crystal-to-amorphous transformation” upon water sorption/desorption.

Graphical abstract: Two-step synthesis of heterometallic coordination polymers using a polyazamacrocyclic linker

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Supplementary files

Article information


Submitted
22 Dec 2015
Accepted
11 Feb 2016
First published
11 Feb 2016

CrystEngComm, 2016,18, 4196-4204
Article type
Paper

Two-step synthesis of heterometallic coordination polymers using a polyazamacrocyclic linker

J. Aríñez-Soriano, J. Albalad, J. Pérez-Carvajal, I. Imaz, F. Busqué, J. Juanhuix and D. Maspoch, CrystEngComm, 2016, 18, 4196
DOI: 10.1039/C5CE02520F

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