[Hg4Te8(Te-2)(4)](8-) : A Heavy Metal Porphyrinoid Embedded in a Lamellar Structure

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http://hdl.handle.net/10138/309478

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Donsbach , C , Reiter , K , Sundholm , D , Weigend , F & Dehnen , S 2018 , ' [Hg4Te8(Te-2)(4)](8-) : A Heavy Metal Porphyrinoid Embedded in a Lamellar Structure ' , Angewandte Chemie (International Edition) , vol. 57 , no. 28 , pp. 8770-8774 . https://doi.org/10.1002/anie.201803233

Title: [Hg4Te8(Te-2)(4)](8-) : A Heavy Metal Porphyrinoid Embedded in a Lamellar Structure
Author: Donsbach, Carsten; Reiter, Kevin; Sundholm, Dage; Weigend, Florian; Dehnen, Stefanie
Contributor: University of Helsinki, Department of Chemistry
Date: 2018-07-09
Language: eng
Number of pages: 5
Belongs to series: Angewandte Chemie (International Edition)
ISSN: 1433-7851
URI: http://hdl.handle.net/10138/309478
Abstract: The use of ionic liquids (C(n)C(1)Im)[BF4] with long alkyl chains (n=10,12) in the ionothermal treatment of Na-2[HgTe2] led to lamellar crystal structures with molecular macrocyclic anions [Hg8Te16](8-) (1), the heaviest known topological relative of porphyrin. [Hg8Te16](8-) differs from porphyrin by the absence of an electronic pi-system, which prevents a global aromaticity. Quantum chemical studies reveal instead small ring currents in the pyrrole-type five-membered rings that indicate weak local (sigma) aromaticity. As a result of their lamellar nature, the compounds are promising candidates for the formation of sheets containing chalcogenidometalate anions.
Subject: chalcogenidometalates
dimensional reduction
inorganic macrocylces
ionothermal synthesis
ring currents
LOW THERMAL-CONDUCTIVITY
HGTE QUANTUM-WELLS
IONIC LIQUIDS
BASIS-SETS
MERCURY TELLURIDES
ROOM-TEMPERATURE
CHALCOGENIDE
TRANSITION
DESIGN
STATE
116 Chemical sciences
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