The reactions of P/S-precursors with coinage metal alkoxides and carboxylates offer new perspectives for the synthesis of complex metal aggregates.

We report on the synthesis of novel coinage metal NHC (N-heterocyclic carbene) compounds of the germanium-rich metalloid clusters [Ge9R3] and [Ge9R2] with R = Si(Pr)3 and RI = Si(TMS)3. NHCCu{η-Ge9R3} with R = Si(Pr)3 (1) represents a less bulky silyl group-substituted derivative of the known analogous compounds with R = Si(Bu)3 or Si(TMS)3. The coordination of the [NHCDippCu]+ moiety to the cl...

The interactions present in cyclic trinuclear coinage metal pyrazolates were studied computationally. Cuprophilic interaction was found to bind the singlet ground state of the dimer of trimers [[Cu(Pz)](3)](2), overcoming electrostatic repulsion. The large variation in intertrimer separations found in the literature for coinage metal pyrazolates is consistent with the relatively weak metallophi...

Department of Applied Physics, AMITY School of Engineering and Technology, An Affiliated Institute of Guru Gobind Singh Indraprastha University, Bijwasan, New Delhi-110 061, India; *E-mail: [email protected] Ultrasonic attenuation for the longitudinal and shear waves due to phonon-phonon interaction and due to thermoelastic relaxation mechanisms have been evaluated in bimetallic alloys of ...

The important intermediate phenyl-coinage metal complexes (Ag(m)C6H5(-), Au(m)C6H5(-)), which are produced from the reactions between coinage metal clusters formed by laser ablation and the benzene molecules seeded in argon carrier gas, are studied by PES (photoelectron spectroscopy) and DFT (density functional theory). The EAs (adiabatic electron affinities) of these complexes are obtained fro...

Three closely related organometallic "spoke-wheel" complexes featuring coinage metal ions, Au(I), Ag(I), and Cu(I), bonded to three norbornene molecules in trigonal planar fashion have been isolated and completely characterized using several methods including X-ray crystallography.