SOLID-STATE STUDIES .14. MIXED-CRYSTAL AND CO-13 ISOTOPIC STUDIES ON INTER-MOLECULAR VIBRATIONAL COUPLING IN THE NU(CO) REGION OF M2(CO)10, M=MN,RE

The ν(CO) Raman spectra of crystalline M2(CO)10 (M = Mn,Re) are interpretable on a molecular basis. Data from mixed Mn/Re crystal and statistical and nonstatistical 13CO-doped crystals of Mn 2(CO)10 are used to establish that intermolecular vibrational coupling occurs in these crystals, showing that such a molecular description is not appropriate. © 1979 American Institute of Physics.