2D sheet frameworks constructed from a diruthenium paddlewheel complex and hexamolybdenum halide clusters

The reaction of [Ru-2(O2CCMe3)(4)(H2O)(2)]BF4 with ((Bu4N)-Bu-n)(2)[(Mo6X8i)X-6(a)] (X-i, X-a = Cl, Cl; Cl, Br; Br, Cl) in CH2Cl2 afforded 2D sheet structure of [{Ru-2(O2CCMe3)(4)](2){(Mo6X8i)Xa(6)}](n)-2n CH2Cl2 (X-i, X-a= Cl, Cl (1.2 CH2Cl2); Cl, Br (2.2 CH2Cl2); Br, Cl (3.2 CH2Cl2)).1.2 CH2Cl2 and 2.2 CH2Cl2 are crystallized in isostructural triclinic unit cells and 3.2 CH2Cl2 in a monoclinic unit cell. All structures have 2D sheet of square lattices with molybdenum clusters as corners and ruthenium complexes as edges. In 1.2 CH2Cl2 and 2.2 CH2Cl2, all the Mob and Rue units in a sheet lie in a plane. Diruthenium units in 3.2 CH2Cl2 are repeatedly sited above and below the plane of Mob units along the b axis. Then the sheet structure of 1.2 CH2Cl2 and 2.2 CH2Cl2 is flat, while that of 3.2 CH2Cl2 is waved.