TOWARDS ONE-DIMENSIONAL CARBON WIRES CONNECTING SINGLE METAL CENTERS - A CUMULENIC C-5 CHAIN THAT MEDIATES CHARGE-TRANSFER BETWEEN RHENIUM AND MANGANESE TERMINI
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The longest Cn bridge known between two single metal centers is found in the bimetallic complex 1. The structure of 1 is best described by the cumulene resonance form +ReCCCCCMn. A very intense rheniumtomanganese charge transfer band at 480 nm ( = 60 500M1 cm1) suggests that the C5 ligand acts as a molecular wire. Counterion: BF4 (Figure Presented.) Copyright 1994 by VCH Verlagsgesellschaft mbH, Germany