Halogenation of Diphosphorus Complexes
journal contribution
posted on 2021-03-18, 16:39 authored by Anna Garbagnati, Michael Seidl, Gábor Balázs, Manfred ScheerA systematic study of diverse halogenation
reactions of the tetrahedral
Mo2P2 ligand complex [{CpMo(CO)2}2(μ,η2:η2-P2)] (1) is reported. By reacting 1 with
different halogenating agents, a series of complexes such as [(CpMo)4(μ4-P)(μ3-PI)2(μ-I)(I)3(I3)] (2), [{CpMo(CO)2}2(μ-PBr2)2] (3a), [{CpMo(CO)2}(CpMoBr2)(μ-PBr2)2] (4a), [{CpMo(CO)2}2(μ-PCl2)2] (3b),
and [{CpMo(CO)2}(CpMoCl2)(μ-PCl2)2] (4b) were obtained. Whereas the reaction
of 1 toward various bromine and chlorine sources leads
to similar results, a different behavior is observed in the reaction
with iodine in which 2 is formed. The products were comprehensively
characterized by spectroscopic methods and single crystal X-ray diffraction,
and the electronic structures of 2, 3a,
and 4a were elucidated by DFT calculations.
