A hexanuclear gold carbonyl cluster.

ABSTRACT: The hexanuclear gold carbonyl cluster [PPh₄]₂[Au₆(CF₃)₆Br₂(CO)₂] (4) has been obtained by spontaneous self-assembly of the following independent units: CF₃AuCO (1) and [PPh₄][Br(AuCF₃)₂] (3). The cyclo-Au₆ aggregate 4, in which the components are held together by unassisted, fairly strong aurophilic interactions (Au···Au ∼310 pm), exhibits a cyclohexane-like arrangement with chair conformation. These aurophilic interactions also result in significant ν(CO) lowering: from 2194 cm^-1 in the separate component 1 to 2171 cm^-1 in the mixed aggregate 4. Procedures to prepare the single-brid

SUBMITTER: Martinez-Salvador S 

PROVIDER: S-EPMC5505037 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature