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Synthesis and Structural Characterization of a Metal Cluster and a Coordination Polymer Based on the [Mn(6)(mu(4)-O)(2)] Unit.

Moushi EE, Tasiopoulos AJ, Manos MJ - Bioinorg Chem Appl (2010)

Bottom Line: A new 1-D coordination polymer {[Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)].2.5H(2)O}(infinity) (1.2.5H(2)O)(infinity) and the cluster [Mn(6)O(2)(O(2)(O(2)CPh)(10) (py)(2)(MeCN)(H(2)O)].2MeCN (2.2MeCN) are reported.Both compounds were synthesized by room temperature reactions of [Mn(3)(mu(3)-O)(O(2)CR)(6)(L)(2)(L')] (R = Me, L = L' = py, (1.2.5H(2)O)(infinity); R = Ph, L = py, L' = H(2)O, 2.2MeCN) in the presence of 3-hydroxymethylpyridine (3hmpH) in acetonitrile.The structures of these complexes are based on hexanuclear mixed-valent manganese carboxylate clusters containing the [Mn(4) (II)Mn(2) (III)(mu(4)-O)(2)](10+) structural core. (1.2.5H(2)O)(infinity) consists of zigzag chain polymers constructed from [Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)] repeating units linked through acetate ligands, whereas 2.2MeCN comprises a discrete Mn(6)-benzoate cluster.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, University of Cyprus, 1678 Nicosia, Cyprus.

ABSTRACT
A new 1-D coordination polymer {[Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)].2.5H(2)O}(infinity) (1.2.5H(2)O)(infinity) and the cluster [Mn(6)O(2)(O(2)(O(2)CPh)(10) (py)(2)(MeCN)(H(2)O)].2MeCN (2.2MeCN) are reported. Both compounds were synthesized by room temperature reactions of [Mn(3)(mu(3)-O)(O(2)CR)(6)(L)(2)(L')] (R = Me, L = L' = py, (1.2.5H(2)O)(infinity); R = Ph, L = py, L' = H(2)O, 2.2MeCN) in the presence of 3-hydroxymethylpyridine (3hmpH) in acetonitrile. The structures of these complexes are based on hexanuclear mixed-valent manganese carboxylate clusters containing the [Mn(4) (II)Mn(2) (III)(mu(4)-O)(2)](10+) structural core. (1.2.5H(2)O)(infinity) consists of zigzag chain polymers constructed from [Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)] repeating units linked through acetate ligands, whereas 2.2MeCN comprises a discrete Mn(6)-benzoate cluster.

No MeSH data available.


A partially labeled plot of 2. The yellow lines emphasize the [Mn4IIMn2III(μ4-O)2]10+ core. Color code: MnII, green; MnIII, dark green; O, red; N, blue; C, grey. H atoms are omitted for clarity.
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fig4: A partially labeled plot of 2. The yellow lines emphasize the [Mn4IIMn2III(μ4-O)2]10+ core. Color code: MnII, green; MnIII, dark green; O, red; N, blue; C, grey. H atoms are omitted for clarity.

Mentions: A representation of the structure of 2·2MeCN is given in Figure 4. The structure of 2·2MeCN is very similar to that of (1·2.5H2O)∞ with the main differences between them being (i) the type of terminal ligands [4H2O for (1·2.5H2O)∞; 2 py, one MeCN and one H2O for 2·2MeCN] (ii) the type of carboxylate groups (acetate for (1·2.5H2O)∞; benzoate for 2·2MeCN) and (iii) their dimensionality [(1·2.5H2O)∞ is a coordination polymer, whereas 2·2MeCN is a discrete metal cluster]. Regarding point (iii) we note that examination of the packing of 2·2MeCN revealed the existence of intermolecular hydrogen bonding interactions (O⋯O distances 2.792(4) and 2.809(4) Å) involving the terminal H2O molecule and two Obenzoate atoms of two neighboring Mn6 molecules resulting in the formation of a dimeric (2·2MeCN)2 aggregate.


Synthesis and Structural Characterization of a Metal Cluster and a Coordination Polymer Based on the [Mn(6)(mu(4)-O)(2)] Unit.

Moushi EE, Tasiopoulos AJ, Manos MJ - Bioinorg Chem Appl (2010)

A partially labeled plot of 2. The yellow lines emphasize the [Mn4IIMn2III(μ4-O)2]10+ core. Color code: MnII, green; MnIII, dark green; O, red; N, blue; C, grey. H atoms are omitted for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

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fig4: A partially labeled plot of 2. The yellow lines emphasize the [Mn4IIMn2III(μ4-O)2]10+ core. Color code: MnII, green; MnIII, dark green; O, red; N, blue; C, grey. H atoms are omitted for clarity.
Mentions: A representation of the structure of 2·2MeCN is given in Figure 4. The structure of 2·2MeCN is very similar to that of (1·2.5H2O)∞ with the main differences between them being (i) the type of terminal ligands [4H2O for (1·2.5H2O)∞; 2 py, one MeCN and one H2O for 2·2MeCN] (ii) the type of carboxylate groups (acetate for (1·2.5H2O)∞; benzoate for 2·2MeCN) and (iii) their dimensionality [(1·2.5H2O)∞ is a coordination polymer, whereas 2·2MeCN is a discrete metal cluster]. Regarding point (iii) we note that examination of the packing of 2·2MeCN revealed the existence of intermolecular hydrogen bonding interactions (O⋯O distances 2.792(4) and 2.809(4) Å) involving the terminal H2O molecule and two Obenzoate atoms of two neighboring Mn6 molecules resulting in the formation of a dimeric (2·2MeCN)2 aggregate.

Bottom Line: A new 1-D coordination polymer {[Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)].2.5H(2)O}(infinity) (1.2.5H(2)O)(infinity) and the cluster [Mn(6)O(2)(O(2)(O(2)CPh)(10) (py)(2)(MeCN)(H(2)O)].2MeCN (2.2MeCN) are reported.Both compounds were synthesized by room temperature reactions of [Mn(3)(mu(3)-O)(O(2)CR)(6)(L)(2)(L')] (R = Me, L = L' = py, (1.2.5H(2)O)(infinity); R = Ph, L = py, L' = H(2)O, 2.2MeCN) in the presence of 3-hydroxymethylpyridine (3hmpH) in acetonitrile.The structures of these complexes are based on hexanuclear mixed-valent manganese carboxylate clusters containing the [Mn(4) (II)Mn(2) (III)(mu(4)-O)(2)](10+) structural core. (1.2.5H(2)O)(infinity) consists of zigzag chain polymers constructed from [Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)] repeating units linked through acetate ligands, whereas 2.2MeCN comprises a discrete Mn(6)-benzoate cluster.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, University of Cyprus, 1678 Nicosia, Cyprus.

ABSTRACT
A new 1-D coordination polymer {[Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)].2.5H(2)O}(infinity) (1.2.5H(2)O)(infinity) and the cluster [Mn(6)O(2)(O(2)(O(2)CPh)(10) (py)(2)(MeCN)(H(2)O)].2MeCN (2.2MeCN) are reported. Both compounds were synthesized by room temperature reactions of [Mn(3)(mu(3)-O)(O(2)CR)(6)(L)(2)(L')] (R = Me, L = L' = py, (1.2.5H(2)O)(infinity); R = Ph, L = py, L' = H(2)O, 2.2MeCN) in the presence of 3-hydroxymethylpyridine (3hmpH) in acetonitrile. The structures of these complexes are based on hexanuclear mixed-valent manganese carboxylate clusters containing the [Mn(4) (II)Mn(2) (III)(mu(4)-O)(2)](10+) structural core. (1.2.5H(2)O)(infinity) consists of zigzag chain polymers constructed from [Mn(6)O(2)(O(2)CMe)(10)(H(2)O)(4)] repeating units linked through acetate ligands, whereas 2.2MeCN comprises a discrete Mn(6)-benzoate cluster.

No MeSH data available.