Seri Bima Sembiring, Stephen B. Colbran, R. Bishop
Jan 15, 1995
Citations
0
Influential Citations
15
Citations
Journal
Inorganica Chimica Acta
Abstract
The X-ray single crystal structures of two p-hydroquinonylphosphine complexes, trans-[PdCl2(pphgH2)2] (1) and trans-[PtCl2(pphgH2)2] (2)A and one p-hydroquinonyldimethyletherphosphine complex, trans-[PdCl2(pphqMe2)2] (3), are described. 1 co-crystallizes with two molecules of lattice-included acetone ((1)·(acetone)2) in the monoclinic space group C2/m with Z = 2 and cell constants a = 13.857(6) b = 13.589(3) c = 11.863(5)A β = 104.68(2)°. Intermolecular hydrogen bonding between molecules of 1 leads to channels that run parallel to the c axis and which include the acetone guest molecules. Complex 2 co-crystallizes with four molecules of dimethylformamide solvent ((2)· (DMF)4) in the triclinic space group P1 with Z = 1 and cell constants a = 10.500(6), b = 11.927(8), c = 12.225(6) A α = 64.65(5), β = 66.74(5) γ = 78.84(5)°. Each dimethylformamide molecule in (2)·(DMF)4 is hydrogen bonded to one of the four OH groups of 2. Complex 3 crystallizes in the triclinic space group P1 with Z = 1 and cell constants a = 9.063(5), b = 10.548(7), c = 11.596(8)A α = 111.57(3), β = 111.26(3)A γ = 90.09( 4)°. It is shown that there is a close relationship between the molecular structures and the co-crystalline behavior of 1 and 2 and the molecular structures and inclusion properties of organic ‘wheel-and-axle’ host molecules. The analogy is extended to provide some guidelines for the design of new inorganic host molecules.