Tris(1,10-phenanthroline-κ²N,N′)iron(III) trinitrate monohydrate

Abstract

In the title compound, [Fe(C12H8N2)3](NO3)3·H2O, the Fe atom lies on a twofold rotation axis and is coordinated by three planar 1,10‐phenanthroline ligands in a slightly distorted octahedral environment. One nitrate anion and the disordered water mol­ecule also lie on twofold rotation axes. The crystal structure is stabilized by partial stacking and hydrogen‐bonding interactions.

Tris(1,10-phenanthroline-κ2N,N′)iron(II) squarate octahydrate

“…The Fe II ion of (I) is bonded to three bidentate phen ligands through their N atoms in a distorted octahedral geometry. The Fe1-N bond distances range from 1.9710 (16) to 1.9803 (16) Å , and are in agreement with those observed in other [Fe(phen) 3 ] 2+ complexes (Koh et al, 1994;Hoshina et al, 2000;Odoko & Okabe, 2004). The angles subtended at the Fe atom by the phen ligands are 82.57 (7), 82.80 (7) and 82.71 (6) , in agreement with those reported for other phen-containing Fe II complexes (Deng et al, 2001;Zhang et al, 2004).…”

μ-Oxo-κ2O:O-bis[bis(1,10-phenanthroline-κ2N,N′)(sulfato-κO)iron(III)] octahydrate

“…, in which X = H 2 O (Plowman et al, 1984) or Cl (Healy et al, 1983). However, these values are significantly different from those found in our recent study of [Fe III (C 12 H 8 N 2 ) 3 ](NO 3 ) 3 ÁH 2 O (Odoko et al, 2004), in which the Fe-N bond lengths range from 1.968 (2) to 1.988 (1) Å , and the N-Fe-N bite angles are 82.43 (6) and 83.30 (7) . The Fe-O-Fe i angle in (I) [172.81 (12) ] is larger than those of the H 2 O complex [155.1 (4) ] and Cl complex [161 (1) ], and the FeÁ Á ÁFe separation in (I) [3.5552 (21) Å ] is longer than that of the Cl complex (3.46 Å ).…”

“…Fe-phen complexes have been studied for their abilities to interact with DNA (Furtado et al, 1997;Li et al, 2002;Mudasir et al, 2003). In order to clarify the coordination mode of Fe and phen, we have prepared and characterized [Fe III (C 12 H 8 N 2 ) 3 ](NO 3 ) 3 Á-H 2 O (Odoko et al, 2004). In the present study, we have synthesized another Fe III complex, [Fe III 2 (OSO 3 ) 2 (C 12 H 8 N 2 ) 4 -(-O)]Á8H 2 O, (I), and determined its crystal structure.…”

Crystal Structure of a Mononuclear Iron(III) Complex, Dichloridobis(1,10-phenanthroline-κ²<i>N,N</i>′)iron(III) Hexafluoridophosphate–acetonitrile

“…The [FeCl2(phen)2] + cation was found to be very few, [2][3][4] although [Fe(phen)3] 3+ complex cations were often observed. [5][6][7][8] Single crystals of [FeCl2(phen)2][PF6]•MeCN were prepared as follows: to a methanolic solution (2.0 mL) of iron(III) chloride hexahydrate (0.27 g, 1.0 mmol) was added a mixture composed of a methanolic solution (2.0 mL) of sodium hexafluoridophosphate (0.17 g, 1.0 mmol) and a methanolic solution (5.0 mL) of 1,10-phenanthroline (0.41 g, 2.0 mmol). After stirring for 30 min at room temperature, an orange precipitate was collected (yield, 0.40 g).…”

“…3,4 however, the Fe-N distances are longer than those in [Fe(phen)3] 3+ complex cations (1.959 -1.988 Å). [5][6][7][8] The acetonitrile molecules are free from In the crystal-packing structure (Fig. 3), the acetonitrile molecules are surrounded by 1,10-phenanthroline moieties of the complex cation.…”