A facile synthesis for {cyclo-(P4tBu3)}2 (1) is reported making the phosphane available for follow-up chemistry. Octaphosphane 1 reacts with [AuCl(tht)] (tht = tetrahydrothiophene) to give a monometallic {[AuCl(1-κ2P2,P4')], 2}, bimetallic {[(AuCl)2(1-κ2P2,P4',κP2')], 3} and trimetallic complex {[(AuCl)3(1-κ2P2,P4',κP2',κP4)], 4} in which up to four phosphorus atoms of the ligand are involved in coordination. In each of these complexes one gold(I) atom is chelated in an unusual distorted T-shaped coordination mode which undergoes a rapid exchange between both donor atoms in solution. This mode of coordination in combination with the flexibility of the phosphane ligand moreover gives rise to an interesting dynamic behavior of the monometallic complex 2 which was elucidated by NMR spectroscopy, X-ray crystallography and DFT calculations.

Dynamic Gold(I) Complexes of Hexa-tert-butyl-octaphosphane / T. Grell, E. Hey-Hawkins. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 2020:9(2020 Mar 08), pp. 732-736. [10.1002/ejic.201901300]

Dynamic Gold(I) Complexes of Hexa-tert-butyl-octaphosphane

T. Grell;
2020

Abstract

A facile synthesis for {cyclo-(P4tBu3)}2 (1) is reported making the phosphane available for follow-up chemistry. Octaphosphane 1 reacts with [AuCl(tht)] (tht = tetrahydrothiophene) to give a monometallic {[AuCl(1-κ2P2,P4')], 2}, bimetallic {[(AuCl)2(1-κ2P2,P4',κP2')], 3} and trimetallic complex {[(AuCl)3(1-κ2P2,P4',κP2',κP4)], 4} in which up to four phosphorus atoms of the ligand are involved in coordination. In each of these complexes one gold(I) atom is chelated in an unusual distorted T-shaped coordination mode which undergoes a rapid exchange between both donor atoms in solution. This mode of coordination in combination with the flexibility of the phosphane ligand moreover gives rise to an interesting dynamic behavior of the monometallic complex 2 which was elucidated by NMR spectroscopy, X-ray crystallography and DFT calculations.
Fluxionality; Gold; Oligophosphanes; Phosphanes; Phosphorus
Settore CHIM/03 - Chimica Generale e Inorganica
8-mar-2020
10-gen-2020
Article (author)
File in questo prodotto:
File Dimensione Formato  
Grell et al., Eur. J. Inorg. Chem. 2020, 732.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 3.43 MB
Formato Adobe PDF
3.43 MB Adobe PDF Visualizza/Apri
ejic201901300-sup-0001-supmat.pdf

accesso aperto

Tipologia: Altro
Dimensione 2.57 MB
Formato Adobe PDF
2.57 MB Adobe PDF Visualizza/Apri
Grell,Hey-Hawkins_Accepted Article_Manuscript_AAM.pdf

accesso aperto

Descrizione: file ad accesso apterto con embargo fino al 21/04/2021
Tipologia: Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione 696.67 kB
Formato Adobe PDF
696.67 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/906753
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 7
social impact