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Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes

Dijana Matak-Vinković ; Laboratory of General and Inorganic Chemistry, Faculty of Science, Ulica kralja Zvonimira 8, 10000 Zagreb, Croatia
Mladen Vinković ; PLIVA-Research Institute, Prilaz baruna Filipovića 25, 10000 Zagreb, Croatia
Miljenko Dumić ; PLIVA-Research Institute, Prilaz baruna Filipovića 25, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (281 KB) str. 541-550 preuzimanja: 122* citiraj
APA 6th Edition
Matak-Vinković, D., Vinković, M. i Dumić, M. (1999). Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes. Croatica Chemica Acta, 72 (2-3), 541-550. Preuzeto s https://hrcak.srce.hr/132236
MLA 8th Edition
Matak-Vinković, Dijana, et al. "Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes." Croatica Chemica Acta, vol. 72, br. 2-3, 1999, str. 541-550. https://hrcak.srce.hr/132236. Citirano 28.03.2020.
Chicago 17th Edition
Matak-Vinković, Dijana, Mladen Vinković i Miljenko Dumić. "Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes." Croatica Chemica Acta 72, br. 2-3 (1999): 541-550. https://hrcak.srce.hr/132236
Harvard
Matak-Vinković, D., Vinković, M., i Dumić, M. (1999). 'Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes', Croatica Chemica Acta, 72(2-3), str. 541-550. Preuzeto s: https://hrcak.srce.hr/132236 (Datum pristupa: 28.03.2020.)
Vancouver
Matak-Vinković D, Vinković M, Dumić M. Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes. Croatica Chemica Acta [Internet]. 1999 [pristupljeno 28.03.2020.];72(2-3):541-550. Dostupno na: https://hrcak.srce.hr/132236
IEEE
D. Matak-Vinković, M. Vinković i M. Dumić, "Chemistry of 1,3-Dioxepins. XIV.1 Structural Studies of 4,7-Dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin and Their Metal Complexes", Croatica Chemica Acta, vol.72, br. 2-3, str. 541-550, 1999. [Online]. Dostupno na: https://hrcak.srce.hr/132236. [Citirano: 28.03.2020.]

Sažetak
The coordination properties and conformational behaviour of 4,7- dihydro-(4,7-dihydro-1,3-dioxepin-2-yl)-1,3-dioxepin 1, bis-(1,3-dioxepin), or C10H14O4 have been investigated. The crystal and molecular structures of bis-(1,3-dioxepin) (1), bis-(1,3-dioxepin) lithiumperchlorate (2:1) (2) and bis-(1,3-dioxepin) sodium-perchlorate (1:1) (3) complexes, as well as bis-(1,3-dioxepin) hexsaaquamagnesiumperchlorate (3:1) chlatrate (4), have been determined by X-ray diffraction. The molecule of bis-(1,3-dioxepin) is a bidentate ligand in mononuclear lithium complex 2, in contrast to its bridging mode in 2D polymeric sodium complex 3. The coordination environment around lithium in 2 is distorted octahedral with C2 symmetry, while around sodium in 3 it is quasi-pentagonal bipyramidal. Out of four possible conformations of bis-(1,3-dioxepin) molecule, twist-boattwist- boat centrosymmetric (tb-tb-c), twist-boat-twist-boat non-centrosymmetric (tb-tb), twist-boat-chair (tb-ch) and chair-chair (ch-ch), three have been found in the investigated crystal structures: ch-ch in 1, tb-tb in 2 and tb-tb-c in 3 and 4.

Ključne riječi
X-ray; 1,3-dioxepin; conformation

Hrčak ID: 132236

URI
https://hrcak.srce.hr/132236

Posjeta: 213 *