Synthesis and Characterization of Gold Silyl Compounds with Different Phosphine or Phosphite Groups for Reduction Reactions

Abstract

The synthesis and structural characterization of metalloid gold clusters stabilized by sulfur ligands has increased massively in the last decade. The metalloid gold clusters are synthesized via a reduction of a gold precursor and most metalloid gold clusters are stabilized via aryl thiolate ligands. It is also possible to use thiosilyl or phosphine groups as stabilizing [a]

Synthese und Charakterisierung von drei mehrschaligen metalloiden Goldclustern der Zusammensetzung Au32(R3P)12Cl8

“…Vor kurzem haben wir eine alternative Syntheseroute zur Darstellung von Goldvorstufen der Form R 3 PAuCl (R=Et, n Pr) präsentiert . Dies war der Ausgangspunkt der folgenden Reaktionen, bei denen R 3 PAuCl in situ generiert, in EtOH gelöst und mittels NaBH 4 reduziert wurde.…”

Synthesis and Characterization of Three Multi‐Shell Metalloid Gold Clusters Au32(R3P)12Cl8

“…[15,16] This was the starting point for the following reactions,where freshly prepared R 3 PAuCl was dissolved in EtOH and reduced with NaBH 4 dispersed in EtOH. [15,16] This was the starting point for the following reactions,where freshly prepared R 3 PAuCl was dissolved in EtOH and reduced with NaBH 4 dispersed in EtOH.…”

Reactions of GeCl2 with the Thiolate LiSC(SiMe3)3: From thf Activation to Insertion of GeCl2 Molecules into C−S Bonds

“…Given the potential for combustion problems with sulfur and silica, we determined the composition of the compounds by means of energy‐dispersive X‐ray (EDX) elemental analysis (see Tables S1–S12 in the Supporting Information). The compounds (thf) 1.5 LiSC(SiMe 3 ) 3 and GeCl 2 ⋅ dioxane were synthesized according to literature procedures . Crystals of all compounds were mounted on the diffractometer at 150 K. The data were collected using a Bruker APEX II DUO diffractometer equipped with an IμS microfocus sealed tube and QUAZAR optics for monochromated Mo Kα radiation ( λ =0.71073 Å) with an Oxford Cryosystems cryostat.…”

“…The chemical shifts are given in ppm against the external standard SiMe 4 .C 6 D 6 and [D 8 ]thf were dried with 3 molecular sieves. The INEPT pulse program was used for the 29 Si NMR spectroscopic experiments. The signals of the central carbon atoms of the trisyl groups (C(SiMe 3 ) 3 )i nt he 13 CNMR spectra were too weak to be determined clearly and they are not denoted as ac onsequence.…”

“…The compounds (thf) 1.5 LiSC(SiMe 3 ) 3 and GeCl 2 ·dioxane were synthesized according to literature procedures. [29,30] Crystals of all compounds were mounted on the diffractometer at 150 K. The data were collected using aB ruker APEX II DUO diffractometer equipped with an ImSm icrofocus sealed tube and QUAZAR optics for monochromated Mo Ka radiation (l = 0.71073 )w ith an Oxford Cryosystems cryostat. As emiempirical absorption correction was applied by using the program SADABS.…”