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Updated: Jan 23, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
New s-Block Metal Pyridinedicarboxylate Network Structures through Gas-Phase Thin-Film Synthesis
Jenna Penttinen1, Mikko Nisula1, Maarit Karppinen1
1Department of Chemistry and Materials Science, Aalto University, 00076, Aalto, Finland.
Abstract:
The combined atomic and molecular layer deposition (ALD/MLD) technique offers a unique way to build-both known and previously unknown-crystalline coordination polymer materials directly from gaseous precursors in a high-quality thin-film form. Here, we demonstrate the ALD/MLD of crystalline Li-, Na-, and K-based 3,5-pyridinedicarboxylate (3,5-PDC) thin films; the Li2 -3,5-PDC films are of the known Li-ULMOF-4 crystal structure whereas the other as-deposited crystalline films possess structures not previously reported. Another exciting possibility offered by ALD/MLD is the deposition of well-defined but amorphous metal-organic thin films, such as our Mg-, Ca-, Sr-, and Ba-based 3,5-PDC films, which can then be crystallized into water-containing structures through a post-deposition humidity treatment. All together, the new metal-organic structures realized in this study through ALD/MLD comprise a majority of the (anhydrous and water-containing) members of the s-block metal 3,5-pyridinedicarboxylate family.
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