Preparation and Crystal Structures of the Ce(IV) beta-diketonates, [Ce(tmhd)4] and [Ce(pmhd)4] (tmhd = 2,2,6,6-tetramethylheptane-3,5-dionate and pmhd = 1-phenyl-5-methylhexane-1,3-dionate)
| dc.contributor.author | I. Baxter, | en |
| dc.contributor.author | J. A. Darr, | en |
| dc.contributor.author | J. C. Plakatouras, | en |
| dc.contributor.author | M. B. Hursthouse, | en |
| dc.contributor.author | K. M. Abdul Malik, | en |
| dc.contributor.author | D. M. P. Mingos, | en |
| dc.contributor.author | J. C. Plakatouras | en |
| dc.date.accessioned | 2015-11-24T16:45:21Z | |
| dc.date.available | 2015-11-24T16:45:21Z | |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8919 | |
| dc.rights | Default Licence | - |
| dc.subject | Cerium(IV) | en |
| dc.subject | b-diketonate | en |
| dc.subject | volatility | en |
| dc.subject | crystal structure | en |
| dc.title | Preparation and Crystal Structures of the Ce(IV) beta-diketonates, [Ce(tmhd)4] and [Ce(pmhd)4] (tmhd = 2,2,6,6-tetramethylheptane-3,5-dionate and pmhd = 1-phenyl-5-methylhexane-1,3-dionate) | en |
| heal.abstract | The cerium(IV) p-diketonate compounds [Ce(p-diket)4] [where p-diket = tmhd (2,2,6,6-tetramethylheptane-3,5-dionate) 1, pmhd (l-phenyl-5-methylhexane-1,3-dionate) 21 were prepared by reacting cerium(IV) ammonium nitrate [CAN; Ce(NH4)2(NO3)6] with the respective Na(p-diket) compound in ethanol, and structurally characterized by single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic space group P1 with a = 12.472(4), b = 19.972(5), c = 21.436(3) A, a = 97.05(7), p = 90.16(2), y = 106.55(3)Β°, V = 5076(2) A3, Z = 4, T = 150(2) K. Compound 2 crystallizes in the monoclinic space group P21/n. with a =14.817(6), b = 17.123(6), c = 19.146(3) A, P = 105.46(4)Β°, V = 4682(3) A3, Z = 4, T = 150(2) K. Crystals of 1 contain two independent [Ce(tmhd)4] molecules, with four chelating tmhd ligands bonded to each metal in a distorted dodecahedral arrangement; the cerium atom in 2 is also bonded to four chelating pmhd ligands but in this case the coordination geometry is closer to square antiprism. Both complexes are air and moisture stable. Sublimation studies reveal that 1 sublimes almost quantitatively, while 2 is comparatively involatile. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.journalName | J. Chem. Crystallogr. | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1998 | - |
| heal.publisher | Plenum Publishing | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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