New CuTe Clusters

Transition‐Metal‐Induced Rearrangement of [(PhSn)4S6] Towards Ternary CuI/Sn/S or CuII/Sn/S Clusters

“…[(PhSn) 4 S 6 ], [14] [Cu(PPh 3 ) 3 Cl], [15] and [Cu(PPh 3 ) 2 Cl 2 ] [16] were prepared according to literature procedures. 1 HNMR and 13 Cs pectroscopy was carried out at 25 8Cu sing a Bruker DRX 300 MHz spectrometer.T he chemical shifts are given in ppm relative to the residual protons of deuterated solvent for 1 H and the solvent signal in 13 CNMR. Yields are based on the amount of Sn and refer to the amount of product isolated as single crystals.…”

“…In similar reactionse mploying [Cu(PPh 3 ) 2 Cl 2 ], reduction of the copperi ons to the + Io xidations tate was alwayso bserved, [4e] although there are examples for mixed-valent copperc halcogenidec lusters, predominantly with telluriuma toms acting as bridging ligands. [13] The observation of the copper ions in their originalo xidation state, despite the reductivee nvironment of sulfidei ons and phosphine molecules, may be due to the immatureness of the cluster; apparently,i th as just passed the first step of cluster growth, such that reduction has not yet occurred,b ut would be the next step. Furtheri ncorporation of Cu II -hence furtherclustergrowth without reduction-seems unlikely,a st his would causea na ccumulationo fp ositive charges that clearly reducest he overall nucleophilicity of the growing cluster.…”

Mono- and bis-silylated tellurium reagents in silver–telluride cluster synthesis: characterisation of Ag30Te21 and Ag46Te29 complexes

“…6 The Ag-Te framework in 1 is less spherical in nature than those observed in related CuTe systems. 7 The latter crystallise with parallel Cu n Te m layers yielding a rather close packed arrangement. In 1, the AgTe planes defined by Te(4)Te(18)-Te(9)Te(17)/Ag( 7)Ag(8)Ag( 27)Ag(28) and Te( 7 As in 1, the metal core is stabilised with PR 3 ligands and aromatic groups bonded to the outer tellurium atoms.…”

Exploring Cu/Al cluster growth and reactivity: from embryonic building blocks to intermetalloid, open-shell superatoms

“…Alternatively, a Cu 4 butterfly structural motif can be distinguished in the structure of 1 , which is known from other molecular Cu clusters like [Cu 4 Te 4 ](PiPr) 4 (ref. 45 ) and [Cu 4 ](PPh 3 ) 2 (mt) 4 (ref. 46 ) (mt = 2-mercaptothiazoline).…”