New Hydride-Containing Mixed Metal-Gold Phosphine Clusters. Crystal Structures of [Pt(H)(CuCl)(AuPPh3)8](NO3) and [Pt(H)(CuCl)2(AuPPh3)8](NO3)

Abstract

The pyridine ligand of 3 can be substituted easily by Cl", Br" or SCN~ to give 4a, 4b, or 4c, respectively* The thiocyanate ligand of 4c is shown to be sulfur-coordinated to a gold atom.

Fractal Patterns in Nucleation and Growth of Icosahedral Core of [AunAg44–n(SC6H3F2)30]4– (n = 0–12) via ab Initio Synthesis: Continuously Tunable Composition Control

“…Inductively coupled plasma mass spectrometry (ICP-MS), which transfers all analytes into singly charged gaseous phase ions, can also provide useful information on the ratios of various elements in the study of heteronuclear clusters. 32,33 The ratios of Ag/Au acquired by ICP-MS are 13.6, 9.1, 7.3, 4.6 4.3 3.7, and 2.8 for 4, 6−10, and 13, respectively, which are in good agreement with the results calculated from the ESI-MS data (cf. Table S3).…”

Hydride-Doped Gold Superatom (Au9H)2+: Synthesis, Structure, and Transformation

“…Steggerda et al reported a similar growth reaction of [PtAu 8 (PPh 3 ) 8 ] 2+ using H 2 under basic conditions. , First, [Pt­(H 2 )­Au 8 (PPh 3 ) 8 ] 2+ is produced by dissociative adsorption of H 2 on [PtAu 8 (PPh 3 ) 8 ] 2+ and a proton is subsequently abstracted from [Pt­(H 2 )­Au 8 (PPh 3 ) 8 ] 2+ by the base (such as pyridine) to form [Pt­(H)­Au 8 (PPh 3 ) 8 ] + . Finally, a coinage metal cation can be introduced to form [Pt­(H)­(X) n Au 8 (PPh 3 ) 8 ] + (X = Au + , Ag + , Cu + ; n = 1, 2).…”

Gold–Heterometal Interactions and Bonds

“…For most of them the metallic frameworks can be derived from a Pt-centered Au 12 icosahedron by removing seven [41], six [555,556], four [556,558], three [548,[559][560][561], or two [556] vertices. Clusters with similar cores in which up to three gold atoms are replaced by atoms of another metal have also been reported, for example, Pt-Au 5 Pt 2 [550], Pt-Au 6 Hg [42], Pt-Au 5 Hg 2 [41], Pt-Au 8 Ag [556,562,563], Pt-Au 8 Ag 2 [563], Pt-Au 8 Cu [556,564] and Pt-Au 8 Cu 2 [564]. In another few compounds additional metal atoms are connected to an M 3 face of trimetallic frameworks derived from Pt-centered icosahedra, for example, Cu(Pt-Au 6 Cu 3 ) [565] and Ag 2 (Pt-Au 6 Recently, the first nanosized Au/Pt cluster, [(Ph 3 P) 2 Au 2 ] 2 Pt 13 (CO) 10 (PPh 3 ) 4 411, was reported; it contains a Pt-centered Pt 12 icosahedral cage capped by two (Ph 3 P)AuAu(PPh 3 ) units [567].…”

“…In the cation of 420 a difference was observed in the lengths of the heterometallic bonds, the radial Au-Cu bonds [2.564(2) -2.605 (2) Å] being significantly shorter than the tangential ones [2.706(2)-2.906(2) Å] [587]. Several other clusters with lower nuclearity display metallic frameworks which can be derived from a Pt-centered icosahedron by removing three or two vertices [556,564,565]. They include species with Pt-Au 8 Cu [556,564] and Pt-Au 8 …”

“…Several other clusters with lower nuclearity display metallic frameworks which can be derived from a Pt-centered icosahedron by removing three or two vertices [556,564,565]. They include species with Pt-Au 8 Cu [556,564] and Pt-Au 8 …”