Mo(4)(eta(3)-allyl)(4)Cl(2)(OH)(2)(CO)(8): the first cubane-type Mo(2+) organometallic complex with mu(3)-OH and mu(3)-Cl bridges.
The reaction between fluorenyllithium and Mo(eta(3)-C(3)H(5))Cl(NCMe)(2)(CO)(2) led to the isolation of di-mu(3)-chlorido-di-mu(3)-hydroxido-tetrakis[(eta(3)-allyl)dicarbonylmolybdenum(II)]-9-fluorenone-tetrahydrofuran (1/1/1), [Mo(4)(C(3)H(5))(4)Cl(2)(OH)(2)(CO)(8)].C(4)H(8)O.C(13)H(8)O. The tetrametallic Mo(4) unit constitutes the first example of a complex containing simultaneously two mu(3)-OH groups and two mu(3)-Cl anions capping the metallic trigonal prism. The four crystallographically independent Mo(2+) centres exhibit distorted octahedral geometry with the eta(3)-allyl groups being trans-coordinated to a mu(3)-OH group and the carbonyl groups occupying the equatorial plane. Space-filling tetrahydrofuran and 9-fluorenone molecules are engaged in strong O-H...O hydrogen-bonding interactions with Mo(4)(eta(3)-allyl)(4)Cl(2)(OH)(2)(CO)(8) complexes.
Amarante
Tatiana R
TR
Department of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal.
Gonçalves
Isabel S
IS
Almeida Paz
Filipe A
FA