Volume 53, Issue 37 pp. 9949-9952
Communication

Adsorption of I2 by Macrocyclic Polyazadithiophenolato Complexes Mediated by Charge-Transfer Interactions

Matthias Golecki

Matthias Golecki

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)

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Norman Beyer

Norman Beyer

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)

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Dr. Gunther Steinfeld

Dr. Gunther Steinfeld

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)

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Dr. Vasile Lozan

Dr. Vasile Lozan

Laboratory of Coordination Chemistry, Institute of Chemistry, Academy of Sciences of Moldova, Chisinau (Republic Moldova)

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Dr. Sergei Voitekhovich

Dr. Sergei Voitekhovich

Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya 14, 220030 Minsk (Belarus)

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Dr. Muhamed Sehabi

Dr. Muhamed Sehabi

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)

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Dr. Jens Möllmer

Dr. Jens Möllmer

Institut für Nichtklassische Chemie e.V., Leipzig (Germany)

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Prof. Dr. Hans-Jörg Krüger

Prof. Dr. Hans-Jörg Krüger

Fachbereich Chemie, TU Kaiserslautern (Germany)

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Prof. Dr. Berthold Kersting

Corresponding Author

Prof. Dr. Berthold Kersting

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)

Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany)Search for more papers by this author
First published: 30 July 2014
Citations: 16

We thank the Deutsche Forschungsgemeinschaft (Project KE 585/8-1) and the Universität Leipzig for funding. We are also grateful to Prof. Dr. H. Krautscheid for providing facilities for X-ray crystallographic measurements.

Graphical Abstract

Seeing I to I: The macrocyclic complex [Ni2(L)(OAc)]ClO4 (1) adsorbs up to 17 molar equivalents (>270 wt %) of iodine, although it does not exhibit permanent porosity. IR and crystallographic studies reveal that two I2 molecules are captured by means of thiophenolate→I2 charge-transfer interactions, which enable the diffusion and sorption of further I2 molecules in a polyiodide-like network.

Abstract

The macrocyclic complex [Ni2(L)(OAc)]ClO4 (1) adsorbs up to 17 molar equivalents (>270 wt %) of iodine, although it does not exhibit permanent porosity. Vibrational spectroscopic and crystallographic studies reveal that two I2 molecules are captured by means of thiophenolate→I2 charge-transfer interactions, which enable the diffusion and sorption of further I2 molecules in a polyiodide-like network. The efficient sorption and desorption characteristics make this material suitable for accommodation, sensing, and slow release of I2.

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