Aqua(dipicolinato-κ³O²,N,O⁶)(1,10-phenanthroline-κ²N,N′)manganese(II) monohydrate

Abstract

In the title compound [systematic name: aqua(1,10-phenanthroline-kappa(2)N,N')(pyridine-2,6-dicarboxylato-kappa(3)O(2),N,O(6))manganese(II) monohydrate, [Mn(C(7)H(3)NO(4))(C(12)H(8)N(2))(H(2)O)].H(2)O, the manganese(II) centre is surrounded by one bidentate phenanthroline ligand [Mn-N = 2.248 (3) and 2.278 (3) A], one tridentate dipicolinate ligand [Mn-N = 2.179 (3) A, and Mn-O = 2.237 (2) and 2.266 (2) A] and one water molecule [Mn-O = 2.117 (3) A], and it exhibits a strongly distorted octahedral geometry, with trans angles ranging from 144.12 (9) to 158.88 (11) degrees. Extensive intermolecular hydrogen-bonding interactions involving coordinated and uncoordinated water molecules and the carboxyl O atoms of the dipicolinate ligand, as well as a stacking interaction involving the phenanthroline rings, are observed in the crystal structure.

A one-dimensional nickel(II) coordination polymer containing 2,6-dipicolinate and dipyrido[3,2-a:2′,3′-c]phenazine

“…In the M/pydc/L system, the similar complexes [Cu(pydc)-(2,2 H -bipyridine)] (Bresciain-Pahor et al, 1985), [Mn(pydc)-(1,10-phenanthroline)] (Ma et al, 2002) and [Co(pydc)(1,10phenanthroline)] (Yin & Jiang, 2001) have been reported before. These complexes have simple discrete structures.…”

trans-Diaquabis(1H-imidazole-4,5-dicarboxylate-κ2N3,O4)manganese(II)

“…The Mn atom, atoms O1 and N2, and the inversion-related O/N-atom pair are strictly coplanar as a result of the Mn atom lying on the inversion centre. The two O atoms of the symmetry-related water molecules complete the octahedral coordination The MnÐO5 distance (Table 1) is comparable to those in Mn II ±water complexes (Okabe & Koizumi, 1997;Hao et al, 2000;Ma et al, 2002;Schlueter & Geiser, 2003).…”

Synthesis, crystal structure, EPR and electrochemical studies of copper(II) dipicolinate complex with 2,2′-dipyridylamine ligand

“…Having potential donor oxygen and nitrogen atoms, dipicolinic acid has attracted the scientists from the coordination chemistry, and a number of studies have been carried out with dipicolinate (dpc) ligand by both inorganic and bioinorganic chemists during the past few years [3,4]. Dipicolinates commonly coordinate to transition metals by either carboxylate bridges between metal centers, to form polymeric or dimeric complexes [5][6][7], or tridentate (O, N, O 0 ) chelation to one metal ion [8][9][10]. The dipicolinic ligand with Cu(II) ions commonly has one or two coordination modes.…”