Tris(pentafluorophenyl)gold(<scp>III</scp>) complexes

Usón, Rafael; Laguna, Antonio; Laguna, Mariano; Fernández, Eduardo J.; Jones, Peter G.; Sheldrick, George M.

doi:10.1039/dt9820001971

Cited by 95 publications

(101 citation statements)

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“…The analog compound bis(diphenylphosphanyl)amine (dppa) and its gold derivatives [RAu(dppa)AuR] (R = Cl, C 6 F 5 , and C 6 Cl 5 ) were reported earlier [14,15,16]. As a result of this C2-symmetry, the P-phenyl rings adopt a staggered conformation along the P-P' axis.…”

Section: Resultsmentioning

confidence: 99%

Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry – Synthesis and Structures

Wiedemann

Gamer

Roesky

2008

Zeitschrift anorg allge chemie

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Substituted bisphosphanylamines as ligands in gold(I) chemistry -synthesis and structures Article, Postprint versionThis version is available at http://dx.doi.org/10.14279/depositonce-5488. This is the peer reviewed version of the following article:Wiedemann, Dennis; Gamer, Michael T.; Roesky, Peter W.: Substituted bisphosphanylamines as ligands in gold(I) chemistrysynthesis and structures. -Zeitschrift für anorganische und allgemeine Chemie. -ISSN: 1521-3749 (online), 0044-2313 (print). -635 (2009), 1. -pp. 125-129. -DOI: 10.1002 which has been published in final form at https://dx.doi.org/10.1002/zaac.200800368. This article may be used for noncommercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Terms of UseCopyright applies. A non-exclusive, non-transferable and limited right to use is granted. This document is intended solely for personal, non-commercial use.Powered by TCPDF (www.tcpdf.org) 1 Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry - Synthesis and StructuresDennis Wiedemann, [a] ‡ Michael T. Gamer, [b] and Peter W. Roesky * [b] [a] Institut für Chemie und Biochemie der Freien Universität Berlin, Berlin, Germany

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Section: Resultsmentioning

confidence: 99%

Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry – Synthesis and Structures

Wiedemann

Gamer

Roesky

2008

Zeitschrift anorg allge chemie

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“…The triflate peaks, which could also, in principle, be used to distinguish between covalent and ionic trifluoromethanesulfonate, are not very useful because unambiguous assignments are hindered by the overlap of the CF 3 , SO 3 , and PPh 3 vibrational modes. [25] The 1 H, [26] and [AuA C H T U N G T R E N N U N G (C 6 F 5 ) 3 OEt 2 ], [27] respectively. As previously observed in the analogous cyclotriphosphazene with W(CO) 5 , coordination at the pyridine moieties leads to a deshielding…”

Section: Introductionmentioning

confidence: 99%

“…The most important peaks that correspond to C 6 F 5 appear at 1062 (s), 954 (vs), and 807 cm À1 and are slightly displaced with respect to the starting complex [AuA C H T U N G T R E N N U N G (C 6 F 5 )tht]. [26] H} spectra show similar chemical shifts to those observed for the complex in which W(CO) 5 fragments are coordinated to the parent polymer II [22] (see the Experimental Section for details). All signals observed in these spectra are broad because of the polymeric nature of these complexes.…”

Section: Introductionmentioning

confidence: 99%

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Metallocyclo‐ and Polyphosphazenes Containing Gold or Silver: Thermolytic Transformation into Nanostructured Materials

Jiménez

Laguna

Benouazzane

et al. 2009

Chemistry A European J

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A cyclotriphosphazene bearing two 4-oxypyridine groups on the same phosphorus atom, gem-[N(3)P(3)(O(2)C(12)H(8))(2)(OC(5)H(4)N-4)(2)] (I), and its analogous polymer [{NP(O(2)C(12)H(8))}(0.7){NP(OC(5)H(4)N-4)(2)}(0.3)](n) (II), have been used to prepare gold or silver, cyclic and polymeric, metallophosphazenes. The following complexes, gem-[N(3)P(3)(O(2)C(12)H(8))(2)(OC(5)H(4)N-4{ML})(2)] (ML=Au(C(6)F(5)) (1) or Au(C(6)F(5))(3) (2)), [N(3)P(3)(O(2)C(12)H(8))(2)(OC(5)H(4)N-4{AuPPh(3)})(2)][NO(3)](2) (3), and [N(3)P(3)(O(2)C(12)H(8))(2)(OC(5)H(4)N-4{AgPPh(2)R})(2)][SO(3)CF(3)](2) (R=Ph (4) or Me (5)) have been obtained. Complexes 1 and 4 are excellent models for the preparation of the analogous polymers [{NP(O(2)C(12)H(8))}(0.7){NP(OC(5)H(4)N-4{ML})(2)}(0.3)](n) (ML=Au(C(6)F(5)) (P1), Ag(OSO(2)CF(3))PPh(3) (P2)). All complexes have been characterized by elemental analysis, various spectroscopic methods, and mass spectrometry. The polymers were further investigated by thermochemical methods (thermogravimetric analysis) and differential scanning calorimetry. For compounds 1-5 and for the starting phosphazene I, a mixture of different stereoisomers may be expected. The stereochemistry in solution has been studied by variable-temperature NMR spectroscopy studies, which provided evidence for interconversion processes that involve changes in the chirality of a 2,2'-dioxybiphenyl group. A single-crystal X-ray analysis of the gold complex 2 confirmed not only the proposed structure, but also S,S and R,R configurations at the two biphenoxy-substituted phosphorus centers, in contrast to those observed for the precursor I. Pyrolysis of these new metallophosphazenes was also studied. Notably, pyrolysis of the gold derivatives gave macroporous metallic gold sponges without the requirement of either an external reducing agent or a porous support. These materials were all characterized by XRD, TEM, SEM, and energy-dispersive X-ray spectroscopy.

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“…[11] N-metalation leads to an Au···N distance of 2.085(6) , similar to those found in complexes with a covalent AuÀN bond in an Au-NPPh 2 moiety. [12] The coordination geometry around the nitrogen atom is planar, with the sum of the three bond angles around N(2) being 360.0(3)8 (max deviation out of the mean plane containing the atoms Pd, P1, N2, C10, O1, and Au: 0.01 ). [13] Accordingly, the NCH 2 protons only show a doublet in the 1 H NMR spectrum as a result of coupling to the P atom.…”

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An Oriented 1D Coordination/Organometallic Dimetallic Molecular Wire with AgPd Metal–Metal Bonds

et al. 2004

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Tris(pentafluorophenyl)gold(III) complexes

Cited by 95 publications

References 10 publications

Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry – Synthesis and Structures

Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry – Synthesis and Structures

Metallocyclo‐ and Polyphosphazenes Containing Gold or Silver: Thermolytic Transformation into Nanostructured Materials

An Oriented 1D Coordination/Organometallic Dimetallic Molecular Wire with AgPd Metal–Metal Bonds

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