Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>

The reaction of diazotetracyanocyclopentadiene with copper powder in the presence of NEt<sub>4</sub>Cl yields, unexpectedly, besides the known NEt<sub>4</sub>[C<sub>5</sub>H(CN)<sub>4</sub>] (3), the NEt<sub>4</sub> salt of octacyanofulvale...

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Main Authors: Patrick Nimax, Yannick Kunzelmann, Karlheinz Sünkel
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Inorganics
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Online Access:https://www.mdpi.com/2304-6740/11/2/71
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author Patrick Nimax
Yannick Kunzelmann
Karlheinz Sünkel
author_facet Patrick Nimax
Yannick Kunzelmann
Karlheinz Sünkel
author_sort Patrick Nimax
collection DOAJ
description The reaction of diazotetracyanocyclopentadiene with copper powder in the presence of NEt<sub>4</sub>Cl yields, unexpectedly, besides the known NEt<sub>4</sub>[C<sub>5</sub>H(CN)<sub>4</sub>] (3), the NEt<sub>4</sub> salt of octacyanofulvalenediide (NEt<sub>4</sub>)<sub>2</sub>[C<sub>10</sub>(CN)<sub>8</sub>] (<b>5</b>), which can be transformed via reaction with AgNO<sub>3</sub> to the corresponding Ag<sup>+</sup> salt (<b>4</b>), which in turn can be reacted with KCl to yield the corresponding K<sup>+</sup> salt <b>6</b>. The molecular and crystal structures of <b>4</b>–<b>6</b> could be determined, and show a significantly twisted aromatic dianion which uses all its nitrile groups for coordination to the metals; <b>4</b> and <b>6</b> form three-dimensional coordination polymers with fourfold coordinated Ag<sup>+</sup> and eightfold coordinated K<sup>+</sup> cations.
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spelling doaj.art-c6719e4a744c4b7186bf1032d8984d572023-11-16T21:13:32ZengMDPI AGInorganics2304-67402023-02-011127110.3390/inorganics11020071Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>Patrick Nimax0Yannick Kunzelmann1Karlheinz Sünkel2Department Chemistry, Ludwig-Maximilians University Munich, Butenandtstr. 5-13, 81377 Munich, GermanyDepartment Chemistry, Ludwig-Maximilians University Munich, Butenandtstr. 5-13, 81377 Munich, GermanyDepartment Chemistry, Ludwig-Maximilians University Munich, Butenandtstr. 5-13, 81377 Munich, GermanyThe reaction of diazotetracyanocyclopentadiene with copper powder in the presence of NEt<sub>4</sub>Cl yields, unexpectedly, besides the known NEt<sub>4</sub>[C<sub>5</sub>H(CN)<sub>4</sub>] (3), the NEt<sub>4</sub> salt of octacyanofulvalenediide (NEt<sub>4</sub>)<sub>2</sub>[C<sub>10</sub>(CN)<sub>8</sub>] (<b>5</b>), which can be transformed via reaction with AgNO<sub>3</sub> to the corresponding Ag<sup>+</sup> salt (<b>4</b>), which in turn can be reacted with KCl to yield the corresponding K<sup>+</sup> salt <b>6</b>. The molecular and crystal structures of <b>4</b>–<b>6</b> could be determined, and show a significantly twisted aromatic dianion which uses all its nitrile groups for coordination to the metals; <b>4</b> and <b>6</b> form three-dimensional coordination polymers with fourfold coordinated Ag<sup>+</sup> and eightfold coordinated K<sup>+</sup> cations.https://www.mdpi.com/2304-6740/11/2/71diazotetracyanocyclopentadieneoctacyanofulvalenediideradical chemistrycoordination polymers
spellingShingle Patrick Nimax
Yannick Kunzelmann
Karlheinz Sünkel
Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
Inorganics
diazotetracyanocyclopentadiene
octacyanofulvalenediide
radical chemistry
coordination polymers
title Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
title_full Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
title_fullStr Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
title_full_unstemmed Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
title_short Coordination Chemistry of Polynitriles, Part XII—Serendipitous Synthesis of the Octacyanofulvalenediide Dianion and Study of Its Coordination Chemistry with K<sup>+</sup> and Ag<sup>+</sup>
title_sort coordination chemistry of polynitriles part xii serendipitous synthesis of the octacyanofulvalenediide dianion and study of its coordination chemistry with k sup sup and ag sup sup
topic diazotetracyanocyclopentadiene
octacyanofulvalenediide
radical chemistry
coordination polymers
url https://www.mdpi.com/2304-6740/11/2/71
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