Spectroscopic studies of trans-bis(hexafluroarsenato)tetrakis(thiazyl trifluoride)metal(<scp>II</scp>) complexes (M = Mn, Fe, Co, Ni, or Cu); crystal structure of the manganese(<scp>II</scp>) complex: an example of exceptionally short N–S bonds and of AsF<sub>6</sub><sup>–</sup>as a unidentate ligand

Buß, Bruno; Clegg, William; Hartmann, G.; Jones, Peter G.; Mews, Rüdiger; Noltemeyer, Mathias; Sheldrick, George M.

doi:10.1039/dt9810000061

Cited by 21 publications

(17 citation statements)

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“…Thet etrafluoroborate anion [BF 4 ] À [17,18] together with anions such as [ClO 4 ] À , [17,19,20] [CF 3 SO 3 ] À , [21] [MF 6 ] À (Sb, [22,23] As [24,25] ), and [Sb n F 5n+1 ] À [26][27][28][29][30][31][32] belong to the "classics" of WCAs. [33] Since the beginning,wehave learned alot about the properties and structural requirements for ap romising candidate in WCA chemistry.I nt his section, we highlight advances in the most prolific classes of WCAs, emphasizing developments in synthetic and catalytic chemistry rather than the fields of ionic liquids and electrolytes,f or which we include only the most pertinent examples.…”

Section: Exemplarily Selected Common Wca Classesmentioning

confidence: 99%

“…The tetrafluoroborate anion [BF 4 ] − [17, 18] together with anions such as [ClO 4 ] − , [CF 3 SO 3 ] − , [MF 6 ] − (Sb, As), and [Sb n F 5 n +1 ] − [26–32] belong to the “classics” of WCAs . Since the beginning, we have learned a lot about the properties and structural requirements for a promising candidate in WCA chemistry.…”

Section: Exemplarily Selected Common Wca Classesmentioning

confidence: 99%

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Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

et al. 2018

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This Review gives a comprehensive overview of the most topical weakly coordinating anions (WCAs) and contains information on WCA design, stability, and applications. As an update to the 2004 review, developments in common classes of WCA are included. Methods for the incorporation of WCAs into a given system are discussed and advice given on how to best choose a method for the introduction of a particular WCA. A series of starting materials for a large number of WCA precursors and references are tabulated as a useful resource when looking for procedures to prepare WCAs. Furthermore, a collection of scales that allow the performance of a WCA, or its underlying Lewis acid, to be judged is collated with some advice on how to use them. The examples chosen to illustrate WCA developments are taken from a broad selection of topics where WCAs play a role. In addition a section focusing on transition metal and catalysis applications as well as supporting electrolytes is also included.

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Section: Exemplarily Selected Common Wca Classesmentioning

confidence: 99%

Section: Exemplarily Selected Common Wca Classesmentioning

confidence: 99%

Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

et al. 2018

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“…See Table S1 for a complete list of geometrical parameters. 17 and is significantly less than the ideal 180°angle observed in F 5 AsNSF 3 , 3 suggesting that intra-and/or intermolecular contacts within the crystal lattice may be responsible for the bent angle. An even more severely bent angle occurs in [F 3 19 The shorter S−F bond lengths of adducted NSF 3 relative to those of free NSF 3 (1.531(1)−1.534(2) Å) are consistent with adduct formation.…”

Section: ■ Results and Discussionmentioning

confidence: 76%

Thiazyl Trifluoride (NSF₃) Adducts and Imidodifluorosulfate (F₂OSN-) Derivatives of Hg(OTeF₅)₂

2015

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Reactions of Hg(OTeF5)2 with excess amounts of NSF3 at 0 °C result in the formation of NSF3 adducts having the compositions [Hg(OTeF5)2·N≡SF3]∞ (1), [Hg(OTeF5)2·2N≡SF3]2 (2), and Hg3(OTeF5)6·4N≡SF3 (3). When the reactions are carried out at room temperature, oxygen/fluorine metatheses occur yielding the F2OSN- derivatives [Hg(OTeF5)(N═SOF2)·N≡SF3]∞ (4) and [Hg3(OTeF5)5(N═SOF2)·2N≡SF3]2 (5). The proposed reaction pathway leading to F2OSN- group formation occurs by nucleophilic attack by a F5TeO- group at the sulfur(VI) atom of NSF3, followed by TeF6 elimination. Tellurium hexafluoride formation was confirmed by (19)F NMR spectroscopy. The NSF3 molecules are terminally N-coordinated to mercury, whereas the F2OSN- ligands are N-bridged to two mercury atoms. The compound series was characterized by low-temperature single-crystal X-ray diffraction and low-temperature Raman spectroscopy. Several structural motifs are observed within this structurally diverse series. These include the infinite chain structures of the related compounds, 1 and 4; 2, a dimeric structure which possesses an (HgO(μ))2 ring at its core; 3, a structure based on a cage comprised of a (HgO(μ))3 ring that is capped on each face by μ(3)-oxygen bridged F5TeO- groups; and 5, a dimeric structure possessing two distorted (Hg3O2N) rings that are formally derived from 3 by replacement of a F5TeO- group by a F2OSN- group in each ring. Quantum-chemical calculations were carried out to gain insight into the bonding of the μ(3)-oxygen bridged teflate groups observed in structure 3. Compounds 1-5 represent a novel class of neutral transition metal complexes with NSF3, providing the first examples of NSF3 coordination to mercury. Compounds 4 and 5 also provide the only examples of F2OSN- derivatives of mercury that have been characterized by single-crystal X-ray diffraction.

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“…" Large quantity of Te4(SbF6)2 also obtained. 23 Table II All compounds crystallize in the orthorhombic system with the exception of (Te3S3)(AsF6)2 and (Te3S3)(SbF6)2 (monoclinic). bReference 6.…”

Section: Resultsmentioning

confidence: 99%

Preparation and crystal structures of compounds containing the tellurium-sulfur, TexS6-x2+ and tellurium-selenium TexSe6-x2+ cations

Burns¹,

Collins²,

Eicher³

et al. 1988

Inorg. Chem.

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Spectroscopic studies of trans-bis(hexafluroarsenato)tetrakis(thiazyl trifluoride)metal(II) complexes (M = Mn, Fe, Co, Ni, or Cu); crystal structure of the manganese(II) complex: an example of exceptionally short N–S bonds and of AsF₆^–as a unidentate ligand

Abstract: Index issue.

Cited by 21 publications

References 0 publications

Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

Thiazyl Trifluoride (NSF₃) Adducts and Imidodifluorosulfate (F₂OSN-) Derivatives of Hg(OTeF₅)₂

Preparation and crystal structures of compounds containing the tellurium-sulfur, TexS6-x2+ and tellurium-selenium TexSe6-x2+ cations

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Spectroscopic studies of trans-bis(hexafluroarsenato)tetrakis(thiazyl trifluoride)metal(II) complexes (M = Mn, Fe, Co, Ni, or Cu); crystal structure of the manganese(II) complex: an example of exceptionally short N–S bonds and of AsF6–as a unidentate ligand

Abstract: Index issue.

Cited by 21 publications

References 0 publications

Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

Taming the Cationic Beast: Novel Developments in the Synthesis and Application of Weakly Coordinating Anions

Thiazyl Trifluoride (NSF3) Adducts and Imidodifluorosulfate (F2OSN-) Derivatives of Hg(OTeF5)2

Preparation and crystal structures of compounds containing the tellurium-sulfur, TexS6-x2+ and tellurium-selenium TexSe6-x2+ cations

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Spectroscopic studies of trans-bis(hexafluroarsenato)tetrakis(thiazyl trifluoride)metal(II) complexes (M = Mn, Fe, Co, Ni, or Cu); crystal structure of the manganese(II) complex: an example of exceptionally short N–S bonds and of AsF₆^–as a unidentate ligand

Thiazyl Trifluoride (NSF₃) Adducts and Imidodifluorosulfate (F₂OSN-) Derivatives of Hg(OTeF₅)₂