Basic beryllium acetate

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Basic beryllium acetate
Beacetate.png
Names
Systematic IUPAC name
Hexakis(μ-acetato)-μ(sup 4)-oxotetraberyllium
Other names
Beryllium oxyacetate
Beryllium oxide acetate
Identifiers
19049-40-2 N
ChemSpider 2299653 N
EC number 242-785-4
PubChem 3035396
Properties
C
12
H
18
Be
4
O
13
Molar mass 406.3122 g/mol
Appearance colorless
Melting point 285 °C (545 °F; 558 K)
Boiling point 330 °C (626 °F; 603 K)
Solubility in chloroform soluble
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Basic beryllium acetate is the chemical compound with the formula Be4O(O2CCH3)6. Although this compound has no applications and has been only lightly studied, it adopts a distinctive structure. The compound is a colourless solid that is soluble in organic solvents.

Preparation[edit]

It can be prepared by treating basic beryllium carbonate with hot acetic acid.

2 Be
2
CO
3
(OH)
2
+ 6 AcOH → Be
4
O(AcO)
6
+ 5 H
2
O
+ 2 CO
2

Basic beryllium acetate is insoluble in water but soluble in chloroform, consistent with it being nonpolar. It melts and sublimes in a vacuum without decomposition.[1]

Structure[edit]

"Basic acetates" consist of an ensemble of metal centres bound to a central oxide ion, and an collection of acetate ligands. Basic beryllium acetate has a tetrahedral Be4O6+ core with acetates (CH3CO2) spanning each of the pairs of Be2+ centres.[2][3] It is diamondoid, consisting of interlocking six-membered Be2O3C rings. The structure is relevant to its considerable stability (the compound is distillable at 330 °C).

Schematic structure of basic beryllium acetate

See Also[edit]

References[edit]

  1. ^ Moeller, T. (1950). "Basic Beryllium Derivatives of Organic Acids". In Audrieth, L. F. Inorganic Syntheses, Volume 3. John Wiley & Sons. p. 4. doi:10.1002/9780470132340.ch2. ISBN 978-0-470-13234-0. 
  2. ^ Bragg, W. H. (1923). "Crystal Structure of Basic Beryllium Acetate". Nature 111 (2790): 532. Bibcode:1923Natur.111..532B. doi:10.1038/111532a0. 
  3. ^ Pauling, L.; Sherman, J. (1934). "The Structure of the Carboxyl Group. II. The Crystal Structure of Basic Beryllium Acetate". Proceedings of the National Academy of Sciences 20 (6): 340. Bibcode:1934PNAS...20..340P. doi:10.1073/pnas.20.6.340.