The low-temperature structure of diethyl ether magnesium oxybromide
- The crystal structure of the title compound, hexa-μ2-bromido-μ4-oxido-tetrakis[(diethyl ether)magnesium], [Mg4Br6O(C4H10O)4], determined from data measured at 173 K, differs from the previously known structure of diethyl ether magnesium oxybromide, which was determined from room-temperature data [Stucky & Rundle (1964 [triangle]). J. Am. Chem. Soc. 86, 4821–4825]. The title compound crystallizes in the tetragonal space group I An external file that holds a picture, illustration, etc. Object name is e-67-m1614-efi7.jpg, whereas the previously known structure crystallizes in a different tetragonal space group, namely P An external file that holds a picture, illustration, etc. Object name is e-67-m1614-efi7.jpg21 c. Both molecules have crystallographic An external file that holds a picture, illustration, etc. Object name is e-67-m1614-efi7.jpg symmetry and show almost identical geometric parameters for the Mg, Br and O atoms. The crystal of the title compound turned out to be a merohedral twin emulating a structure with apparent Laue symmetry 4/mmm, whereas the correct Laue group is just 4/m. The fractional contribution of the minor twin component converged to 0.462 (1).
Author: | Hannes VitzeGND, Hans-Wolfram LernerORCiDGND, Michael BolteORCiD |
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URN: | urn:nbn:de:hebis:30:3-252854 |
DOI: | https://doi.org/10.1107/S1600536811043820 |
ISSN: | 1600-5368 |
Pubmed Id: | https://pubmed.ncbi.nlm.nih.gov/22219840 |
Parent Title (English): | Acta crystallographica / Section E, Structure reports online |
Publisher: | Munksgaard |
Place of publication: | Copenhagen |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2011/10/29 |
Date of first Publication: | 2011/10/29 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2012/06/25 |
Volume: | 67 |
Issue: | m1614 |
Page Number: | 8 |
HeBIS-PPN: | 357583175 |
Institutes: | Biochemie, Chemie und Pharmazie / Biochemie und Chemie |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung 3.0 |