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Poly[[hexa-?-cyanido-manganese(II)iron(III)] penta-hydrate].

ABSTRACT: The structure of the title compound, Mn(II)[Fe(III)(CN)(6)](2/3)·5H(2)O, features a face-centered cubic -Mn-NC-Fe- framework with both Mn and Fe having site symmetry mm. Since one-third of the [Fe(CN)(6)](3-) units are missing for a given formula in order to maintain charge neutrality, each Mn atom around such a vacancy is coordinated not only by the N atoms of the CN groups but also by the O atoms of the ligand water mol-ecules. In addition to ligand water mol-ecules, two types of non-coordinated water mol-ecules, so-called zeolitic water mol-ecules, exist in the inter-stitial sites of the -Mn-NC-Fe- framework. The positions of the O atoms of the zeolitic water mol-ecules are fixed by the linkage via hydrogen bonds between ligand water and zeolitic water mol-ecules. The structure is related to a recently reported rubidium manganese hexa-cyano-ferrate. Site occupancy factors for Fe, C, N are 0.67; for two O atoms the value is 0.83 and for one O atom is 0.17.

SUBMITTER: Matsuda T

PROVIDER: S-EPMC2960286 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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Poly[[hexa-μ-cyanido-manganese(II)iron(III)] penta-hydrate].

Matsuda Tomoyuki T Tokoro Hiroko H Shiro Motoo M Hashimoto Kazuhito K Ohkoshi Shin-Ichi S

Acta crystallographica. Section E, Structure reports online 20080109 Pt 2

The structure of the title compound, Mn(II)[Fe(III)(CN)(6)](2/3)·5H(2)O, features a face-centered cubic -Mn-NC-Fe- framework with both Mn and Fe having site symmetry mm. Since one-third of the [Fe(CN)(6)](3-) units are missing for a given formula in order to maintain charge neutrality, each Mn atom around such a vacancy is coordinated not only by the N atoms of the CN groups but also by the O atoms of the ligand water mol-ecules. In addition to ligand water mol-ecules, two types of non-coordinat ...[more]

PMID: 21201245

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| S-EPMC3120535 | biostudies-literature

Poly[[diaqua-hexa-?-cyanido-cerium(III)ferrate(III)] dihydrate].

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Diaqua-bis-(1,10-phenanthroline-?N,N')manganese(II) sulfate hexa-hydrate.

Project description:In the title compound, [Mn(C(12)H(8)N(2))(2)(H(2)O)(2)]SO(4)·6H(2)O, the complex cations assemble into positively charged sheets parallel to (010) via inter-molecular ?-? stacking inter-actions with a mean interplanar distance of 3.410?(6) along [100] and 3.465?(5)?Å along [001]. The sulfate anions and uncoordinated water mol-ecules are inter-connected between these layers by hydrogen bonds, forming negatively charged layers which are linked to the positive layers through O-H?O hydrogen bonds, forming a three-dimensional architecture. Both the positive and negative sheets are stacked along [010] in an ?ABAB? sequence, the A layers being shifted by 1/2a along [100] with respect to the B layers. One of the uncoordinated water molecules is equally disordered over two positions.

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| S-EPMC2914929 | biostudies-literature

Di-?-cyanido-1:2?C:N,2:3?N:C-hexa-cyanido-1?C,3?C-tetra-kis(1,10-phenanthroline)-1?N,N';2?N,N';3?N,N'-1,3-dicobalt(III)-2-iron(II) tetra-hydrate.

Project description:The hydro-thermal reaction of CoCl(2)·6H(2)O, 1,10-phenanthroline (phen) and K(3)[Fe(CN)(6)] in deionized water yielded the title cyanide-bridged trinuclear cluster, [Co(2)Fe(CN)(8)(C(12)H(8)N(2))(4)]·4H(2)O or [{Co(III)(phen)(CN)(4)}(2){Fe(II)(phen)(2)}]·4H(2)O, which contains two Co(III) centers and one Fe(II) center linked by cyanide bridges. The combination of coordinative bonds, O-H?N and O-H?O hydrogen bonds and ?-? stacking inter-actions [centroid-centroid distance = 3.630?(2)?Å] results in the stabilization of a supra-molecular structure. All uncoordinated water molecules are disordered. Thermogravimetric analysis reveals that the title complex loses the four crystal water mol-ecules at about 333?K, then the anhydrous phase loses no further mass up to about 573?K, above which decomposition occurs.

| S-EPMC2970114 | biostudies-literature

catena-Poly[diquinolinium [[diaqua-cobaltate(II)]-?-cyclo-tetra-phosphato] hexa-hydrate].

Project description:The cyclo-tetra-phosphate anion, [P(4)O(12)](4-), forms the title complex with cobalt(II) and quinolinium, {(C(9)H(8)N)(2)[Co(P(4)O(12))(H(2)O)(2)]·6H(2)O}(n). In the complex anion, the Co(II) ion, lying on an inversion center, is surrounded by four phosphate O atoms and two water mol-ecules in a slightly distorted octa-hedral geometry. The crystal structure consists of anionic ribbons of formula {[Co(P(4)O(12))(H(2)O)(2)](2-)}(n) extending along [100]. A network of O-H?O, N-H?O and C-H?O hydrogen bonds consolidates the crystal packing.

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