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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Stergiou, D. V. | en |
| dc.contributor.author | Skoulika, S. | en |
| dc.contributor.author | Evmiridis, N. P. | en |
| dc.contributor.author | Veltsistas, P. G. | en |
| dc.date.accessioned | 2015-11-24T16:53:12Z | - |
| dc.date.available | 2015-11-24T16:53:12Z | - |
| dc.identifier.issn | 0897-4756 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/9987 | - |
| dc.rights | Default Licence | - |
| dc.subject | complexes | en |
| dc.subject | acid | en |
| dc.subject | cyananilate | en |
| dc.subject | pyrazine | en |
| dc.title | Bis-(S-benzylthiuronium) chloranilate supramolecular crystal structure: Preparation and characterization | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.primary | Doi 10.1021/Em040182m | - |
| heal.identifier.secondary | <Go to ISI>://000227772100011 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/cm040182m | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.publicationDate | 2005 | - |
| heal.abstract | A novel supramolecular structure, [C8H11N2S](2)center dot(C6Cl2O4), based on hydrogen bonding of the organic S-benzylthiuronium (SBT) cation and the chloranilate dianion, is presented. Chloranilic acid or 2,5-dichlro-3.6-dihydroxy-1,4-benzoquinone, is a strong quinoidal diphenic acid (pK(1) = 1.09 and pK(2) = 2.42), with molecular formula C6Cl2O4H2 (H(2)CA). The CA-dianions and the aromatic rings of the SBT-cation; form columns along the c-axis giving an ordered pattern of dianions surrounded by densely populated areas of SBT-cations. Each CA-dianion forms eight hydrogen bonds with the amine protons of six SBT-cations, through its oxygen atoms. In this way, an extended H-bond network, containing infinite chains of alternative R-4(2)(8) and R-2(2)(9) cyclic patterns, is obtained. The whole arrangement leads to a C2/c space group crystal structure, with unit cell dimensions a = 15.109 angstrom, b = 11.606 angstrom, and c = 14.390 angstrom and with unit cell angles of alpha = gamma = 90 degrees, and beta = 97.01 degrees, and average density of 1.43 g/cm(3). Dissolution of the crystalline material in DMSO leads to the formation of associated organic ions or charge-transfer complexes as evidenced from the bathochromic shift of the absorption band of chloranilic acid from 420 to 520 nm. | en |
| heal.journalName | Chemistry of Materials | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Stergiou-2005-Bis-(S-benzylthiuron.pdf | 273.61 kB | Adobe PDF | View/Open Request a copy |
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