Trans-Bis(methanol-?O)bis-(quinoline-2-carboxyl-ato-?N,O)manganese(II).

ABSTRACT: The title compound, [Mn(C(10)H(6)NO(2))(2)(CH(4)O)(2)], was obtained unintentionally as the product of an attempt to synthesize a polynuclear carboxyl-ate bridged manganese(III/IV) complex, using methanol to reduce the permanganate ion. The mol-ecule is centrosymmetric; the pairs of equivalent ligands coordinate trans to each other in a distorted octa-hedral geometry. Intra-molecular C-H?O bonds lying in the equatorial plane stabilize the mol-ecule. In the crystal, mol-ecules are linked by O-H?O and C-H?O hydrogen bonds, creating a three-dimensional supra-molecular structure. ?-? and C-H?? inter-actions are also observed. The dihedral angle and centroid-to-centroid distance between the pyridine ring (A) and the benzene ring (B(i)) of a symmetrically related mol-ecule [symmetry code: (i) -1 - x, -y, -z] are 1.27?(11)° and 3.974?(2)?Å, respectively. For the C-H?? inter-actions, the relevant distances and angles are: C?Cg[A(ii)] = 3.643?(2)?Å, H?Cg[A(ii)] = 2.750?(2)?Å and C-H?Cg[A(ii)] = 155?(1)° [symmetry code: (ii) x, -1 + y, z].

SUBMITTER: Dobrzynska D 

PROVIDER: S-EPMC2959585 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature