A homobimetallic vanadium d2–d2 complex (Cp2V)2(3η:4η-Me3SiC[triple bond, length half m-dash]C–C[double bond, length half m-dash]C–C[triple bond, length half m-dash]CSiMe3):structure and magnetism

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Robert Choukroun, Christian Lorber, Bruno Donnadieu, Bernard Henner, Richard Frantz and Christian Guerin


Abstract

The d2–d2 homobimetallic complex (Cp2V)2(3η:4η-Me3-SiC[triple bond, length half m-dash]C–C[double bond, length half m-dash]C–C[triple bond, length half m-dash]CSiMe3) was synthesized from Me3SiC[triple bond, length half m-dash]C–C[triple bond, length half m-dash]C–C[triple bond, length half m-dash]CSiMe3 and Cp2V and characterized by an X-ray crystal structure; magnetic moment measurements from 300 to 2 K indicated a weak antiferromagnetic J exchange coupling of –3.7 cm–1.


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