2006
DOI: 10.1002/zaac.200500460
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Unidimensional Self‐assembling of {HgII[NNN(PhBr)2]2} through Metal‐η4‐arene π‐Interactions: Synthesis and X‐Ray Characterization of a Bis Diaryl Symmetric‐substituted Triazenide Complex Polymer of Mercury(II)

Abstract: A solution of deprotonated 1,3-bis(4-bromophenyl)triazene reacts with Hg(CH 3 COO) 2 in methanol / tetrahydrofurane to give yellow crystalline needles of {Hg II [NNN(PhBr) 2 ] 2 } n , a triazenide complex polymer of Hg II with metal-η 2 ,η 2 -arene π-interactions, performed by coordinated single triazenide chains. The crystal structure of the new polymeric complex of Hg II belongs to the monoclinic space group P2 615[Hg II (BrPhNNNPhBr) 2 ] n can be viewed as a one-dimensional assembling of planar tectons [Hg … Show more

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Cited by 12 publications
(4 citation statements)
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“…As a restriction, the N–Hg–N angles were allowed to have values from 160° to 180° (where N is defined as any coordinated nitrogen atom). Our results show that square planar geometry around Hg­(N) 4 is rare, and there is only one report, with refcode of UDAHEN, in which the coordination geometry around Hg­(II) may be considered as square planar. In this complex, the central metal is coordinated by two 1,3-bis­(4-bromophenyl)­triazenide chelating ligands.…”
Section: Results and Discussionmentioning
confidence: 58%
“…As a restriction, the N–Hg–N angles were allowed to have values from 160° to 180° (where N is defined as any coordinated nitrogen atom). Our results show that square planar geometry around Hg­(N) 4 is rare, and there is only one report, with refcode of UDAHEN, in which the coordination geometry around Hg­(II) may be considered as square planar. In this complex, the central metal is coordinated by two 1,3-bis­(4-bromophenyl)­triazenide chelating ligands.…”
Section: Results and Discussionmentioning
confidence: 58%
“…The other distances to C(7), C(8) and C(9) are unexceptional. Whereas Hg-C arene distances shorter than 3.00 Å were found in [(C 6 Me 6 )Hg(O 2 CCF 3 ) 2 ] [16] or the mercury(I) compound [(C 6 Me 6 )HgHg][AlCl 4 ] 2 [17], the Hg(1)-C(5) and Hg(1)-C(4) distances in 2 AE CH 2 Cl 2 compare well with the Hg-C arene distances in, for example, 3.574(7) Å ] [19], and {Hg[NNN(PhBr) 2 ] 2 } n [3.297(6), 3.429(6) Å ] [20]. However, NMR spectroscopy does not provide evidence that the dimeric motif is preserved in solution.…”
Section: Resultsmentioning
confidence: 71%
“…Besides their ability to coordinate of different manners with transition metals, triazenes are also proficient to assemble unique supramolecular aggregates, because of their remarkable aptitude to attain intermolecular, secondary metal-ligand and ligand-ligand interactions. Recently we have reported some examples of this class of compounds, with one-dimensional [1][2][3][4] and two-dimensional [5][6][7] polymeric assemblies. Since most of the reported compounds were synthesized under deprotonation of the triazenes with metallic sodium, we have also investigated experimentally the generation ''in situ" of the alkali metal salt by reaction of the relatively unstable 3-(4-carboxyphenyl)-1-methyltriazene N-oxide with KOH [8].…”
Section: Introductionmentioning
confidence: 99%