Strained bonds in [Re4Q4X12]4- cluster complexes (Q = S, Se, Te; X = F, CN-) according to AIM and ELF data

The electron density distribution in [Re(4)Q(4)X(12)](4-) cubane-like clusters (Q = S, Se, Te; X = F, CN) was investigated by the AIM and ELF topological quantum-chemical methods. The Re-Re, Re-Q, and Re-X interatomic interactions are characterized by bcp type critical binding points and are strained.