Mn(II) coordination compounds with tripodal N,N,N-tris-(2-benzimidazolylmethyl)amine (TMBA) have been synthesized and spectro-scopically characterized. The crystal structure of [Mn(TMBA) (NO3) (CH3OH)] (NO3) H2O has been determined. The compound crystallizes in the monoclinic space group P21/c with four formula units in a cell of dimensions a = 11.3825(2), b = 13.4338(2), c = 17.9548(3) Å, β = 100.026(1)°; final R = 0.0299, based on 4745 independent reflections. The structure indicates the complex ion has a heptacoordinate metal center with a coordination polyhedron best described as a capped octahedron. The octahedron is defined by three nitrogen atoms from the benzimidazole moieties (N(1A), N(1C) and N(1B)), the oxygen atom of the methanol O(41), and two oxygen atoms from the coordinating nitrate group O(11) and O(12). The capping ligating atom is the bridging N(1) from the TMBA ligand with a longer Mn-N distance of 2.551(1) Å.
|Original language||English (US)|
|Number of pages||5|
|Journal||Inorganica Chimica Acta|
|State||Published - Apr 30 1997|
Bibliographical noteFunding Information:
This research was supported by a Cottrell ColIege Science Award of the Research Corporation (Award No. C3637 to A.R.O.).A.R.O. thankstheTrusteesoftbeLongIsI versity for granting Release Time from teaching duties to perfotm this research.
- Crystal structures
- Manganese complexes
- Seven-coordinate complexes
- Tripodal ligand complexes