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Bis{μ-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}bis-[(thio-cyanato-κN)iron(III)].

ABSTRACT: The title compound, [Fe(2)(C(16)H(14)N(2)O(2))(2)(NCS)(2)], is isostructural with the Mn(III)-containing analogue. Each Fe(III) atom is chelated by a tetra-dentate 2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate ligand and by the N atom of a thio-cyanate anion, in a square-pyramidal arrangement. The complex mol-ecules form centrosymmetric dimers, with an Fe-O contact of 2.549 (3) Å, trans to each thio-cyanate anion, completing a distorted octa-hedral coordination geometry.

SUBMITTER: Hao L

PROVIDER: S-EPMC2961955 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature

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Bis{μ-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}bis-[(thio-cyanato-κN)iron(III)].

Hao Lujiang L Mu Chunhua C Kong Binbin B

Acta crystallographica. Section E, Structure reports online 20080716 Pt 8

The title compound, [Fe(2)(C(16)H(14)N(2)O(2))(2)(NCS)(2)], is isostructural with the Mn(III)-containing analogue. Each Fe(III) atom is chelated by a tetra-dentate 2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate ligand and by the N atom of a thio-cyanate anion, in a square-pyramidal arrangement. The complex mol-ecules form centrosymmetric dimers, with an Fe-O contact of 2.549 (3) Å, trans to each thio-cyanate anion, completing a distorted octa-hedral coordination geometry. ...[more]

PMID: 21203025

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Bis{μ-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}bis-[(thio-cyanato)manganese(III)].

Project description:The reported structure is a monoclinic polymorph of the title compound, [Mn(2)(C(16)H(14)N(2)O(2))(2)(NCS)(2)], which has been characterized previously in an ortho-rhom-bic form. Each Mn(III) atom is chelated by a tetra-dentate 2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate ligand and by the N atom of a thio-cyanate anion, in a square-pyramidal arrangement. The complexes form centrosymmetric dimers, with an Mn-O contact of 2.557 (3) Å trans to each thio-cyanate anion, completing a distorted octa-hedral coordination geometry.

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Bis{μ-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}dinickel(II).

Project description:The asymmetric unit of the title compound, [Ni(2)(C(16)H(14)N(2)O(2))(2)], contains an Ni(II) cation which is coordinated by two imine N atoms and by two phenolate O atoms of the salen ligand {salen = N,N'-bis-(salicyl-idene)ethane-1,2-diamine or 2,2'-[ethane-1,2-diyl-bis(nitrilo-methyl-idyne)]diphenol}, leading to a distorted square-planar conformation. When a secondary Ni-O inter-action > 2.41 Å to the neighbouring phenolate O atom is considered, two mol-ecules are linked into a centrosymmetric dimer with an overall square-pyramidal coordination for the Ni(II) cation. Weak π-π inter-actions with a shortest interplanar distance of 3.704 Å help to stabilize the crystal structure.

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Project description:The title compound, [Mn(C(16)H(14)N(2)O(2))(NCO)], is a monoclinic polymorph of the previously published ortho-rhom-bic form [Lu et al. (2006 ▶). Inorg. Chem.45, 3538-3548]. The Mn(III) ion is chelated by a tetra-dentate Schiff base ligand and coordinated by the N atom of a cyanate ligand in a distorted square-pyramidal arrangement. In the crystal, there are short inter-molecular Mn⋯O(phenolate) distances of 2.752 (3) Å between pairs of inversion-related mol-ecules.

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{4,4'-Dibromo-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}copper(II).

Project description:In the title compound, [Cu(C(16)H(12)Br(2)N(2)O(2))], the Cu(II) atom is coordinated in a slightly distorted square-planar geometry by two O and two N atoms of the tetra-dentate dianionic 4,4'-dibromo-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphen-olate Schiff base ligand.

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Project description:The title compound, [Cu(C(22)H(22)N(2)O(8))], is a tetra-dentate Schiff base complex. The Cu(II) ion has a nearly square-planar geometry, being coordinated by two N atoms and two O atoms. The two chemically equivalent halves of the mol-ecule are crystallographically independent. One of the carboxylic acid methyl ester units is located in the main plane of the mol-ecule and the other is rotated by 65.3 (5)° with respect to this unit. In the crystal structure, there are π-π stacking inter-actions between adjacent six-membered chelate rings, with centroid-to-centroid distances of 3.602 (2) Å.

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Bis(4-chloro-pyridine){2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}cobalt(III) perchlorate methanol monosolvate.

Project description:In the title complex, [Co(C(16)H(14)N(2)O(2))(C(5)H(4)ClN)(2)]ClO(4)·CH(3)OH, the Co(III) ion is in a slightly distorted octa-hedral CoN(4)O(2) coordination environment with the two 4-chloro-pyridine ligands in a trans arrangement.

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Project description:In the title complex, [Co(C(26)H(20)N(2)O(4))(NCS)]·C(4)H(10)O·CH(2)Cl(2), the penta-coordinated Co(III) atom exhibits a distorted square-pyramidal geometry with an N,N',O,O' tetra-dentate Schiff base ligand in the basal plane and one thio-cyanate ligand at the apical site. The diethyl ether mol-ecule is located in a cavity provided by four O atoms of the ligand with weak C-H?O inter-actions, generating two short O?O contact distances [2.766?(3) and 2.745?(3)?Å] between the diethyl ether mol-ecule and the ligand. The crystal structure is stabilized by the weak C-H?O and C-H?N inter-actions and ?-? inter-actions between the naphthyl ring system and the benzene ring [centroid-centroid distance = 3.657?(5)?Å] and between the two naphthyl ring systems [centroid-centroid distance = 4.305?(2)?Å].

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Aqua-{6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}nickel(II).

Project description:The title complex, [Ni(C(18)H(18)N(2)O(4))(H(2)O)], lies on a mirror plane with the Ni(II) ion coordinated by two N and two O atoms of a tetra-dentate Schiff base ligand and one water O atom in a distorted square-pyramidal enviroment. The -CH(2)-CH(2)- group of the ligand is disordered equally over two sites about the mirror plane. The dihedral angle between the mean planes of the two symmetry-related chelate rings is 37.16 (6)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link complex mol-ecules into one-dimensional chains along [100] and these chains are linked, in turn, by very weak inter-molecular C-H⋯O hydrogen bonds into a two-dimensional network.

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Aqua-{2,2-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}(3-nitro-benzoato)manganese(III).

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