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Open AccessArticle

Cobaloximes as Building Blocks in Halogen-Bonded Cocrystals

1
Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102A, 10 000 Zagreb, Croatia
2
Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(10), 2370; https://doi.org/10.3390/ma13102370
Received: 29 April 2020 / Revised: 16 May 2020 / Accepted: 18 May 2020 / Published: 21 May 2020
In this work, we explore the halogen-bonded cocrystallization potential of cobaloxime complexes in the synthesis of cocrystals with perhalogenated benzenes. We demonstrate a strategy for synthesizing halogen-bonded metal–organic cocrystals by utilizing cobaloximes whose pendant bromide group and oxime oxygen enable halogen bonding. By combining three well-known halogen bond donor molecules differing in binding geometry and composition with three cobaloxime units, we obtained a total of four previously unreported cocrystals. Single crystal X-ray diffraction experiments showed that the majority of obtained cocrystals exhibited the formation of the targeted I···O and I···Br motives. These results illustrate the potential of cobaloximes as halogen bond acceptors and indicate that this type of halogen bond acceptors may offer a novel route to metal–organic halogen-bonded cocrystals. View Full-Text
Keywords: halogen bonding; cobaloximes; coordination compounds; cocrystals; mechanochemistry halogen bonding; cobaloximes; coordination compounds; cocrystals; mechanochemistry
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MDPI and ACS Style

Bedeković, N.; Martinez, V.; Topić, E.; Stilinović, V.; Cinčić, D. Cobaloximes as Building Blocks in Halogen-Bonded Cocrystals. Materials 2020, 13, 2370.

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