Gold(I) complexes of unidentate and bidentate phosphorus-, arsenic-, antimony-, and sulphur-donor ligands

McAuliffe, Charles A.; Parish, R. V.; Randall, P. D.

doi:10.1039/dt9790001730

Cited by 127 publications

(78 citation statements)

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“…[10] The starting materials [(Ph 3 P)AuCl], [11] [(Et 3 P)AuCl], [11] [(tBuNC)AuCl], [7] and [(Ph 3 P) 2 PtCl 2 ] [12] were prepared as described in the literature. The DPP dyes 1 a ± f were made available by the groups of Prof. Dr. H. Langhals and Prof. Dr. R. Gompper (≤).…”

Section: Methodsmentioning

confidence: 99%

DPP Dyes as Ligands in Transition-Metal Complexes

Lorenz¹,

Limmert

Mayer³

et al. 2002

Chem. Eur. J.

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The DPP dyes (=diketopyrrolopyrrole) 1 are deprotonated to give the corresponding dianions 2. These are treated with two moles of the transition‐metal complexes [LnMX]=[(Ph3P)2MX] (M=Cu, Ag; X=Cl, NO3), [(Ph3P)AuCl], [(Et3P)AuCl], [(tBuNC)AuCl], [(Ph3P)2PdCl2], and [(Ph3P)2PtCl2] to give the novel bismetalated DPP dyes [LnMN{C3R1(O)}2NMLn] (4–10). In comparison with the starting materials, these compounds show better solubilities, high fluorescence quantum yields (Φ≥80 %), and bathochromic absorptions. The compounds 4 c, 5 a, 6 b, 6 c, 6 e, 7 c, and 8 c were characterized by X‐ray crystallography. The copper and silver atoms in 4 c and 5 a are trigonal planar and are surrounded by the P atoms of the phosphane ligands and the N atom of the DPP dianion 2. Both metals are somewhat forced out‐of‐plane, and the P2M plane and the phenyl planes of R1 are twisted by >70° and <25°, respectively, towards the chromophore plane. The gold atoms in 6–8 are linearly coordinated to one N and one P (6 b, c, e, 7 c) or one C atom (8 c), respectively. The gold atoms are only slightly pressed out‐of‐plane, and the P substituents are staggered so that there is enough space for the planarization of R1 into the plane of the chromophore. Compound 8 c shows intermolecular d10–d10 interactions between AuI centers of different molecules, and these interactions lead to infinite chains of parallel orientated molecules in a gauche conformation of neighbors (torsion angle=150°) in the crystal.

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Section: Methodsmentioning

confidence: 99%

DPP Dyes as Ligands in Transition-Metal Complexes

Lorenz¹,

Limmert

Mayer³

et al. 2002

Chem. Eur. J.

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show abstract

“…of HCl. [24] This process is reminiscent to the synthesis of (tht)AuCl involving the reaction of with 2 equiv. of tetrahydrothiophene (tht) in an alcoholic solution [22].…”

Section: Mechanistic Considerationsmentioning

confidence: 99%

Towards asymmetric Au-catalyzed hydroxy- and alkoxycyclization of 1,6-enynes

Chao

Genin

Toullec

et al. 2009

Journal of Organometallic Chemistry

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“…2-S-and/or 4-Spyridine group was introduced into (AuCl) 2 (l 2 -t-den) scaffold [13,25] by substituting C 5 H 4 NS À for Cl. In a 200-ml three necked round-bottom flask, a methanol solution (40 ml) of 2-pyridinethiol (120 mg, 1.25 mmol) and KOH (70 mg, 1.25 mmol) were placed and then a CH 2 Cl 2 solution (50 ml) of (Cl-Au) 2 (l 2 -t-dpen) (430 mg, 0.50 mmol) was added.…”

Section: Synthesis Of [Au(x-s-pyridine)] 2 (L 2 -T-dpen)mentioning

confidence: 99%