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<p><span class="autocomment">References: </span> template</p>
<p><b>New page</b></p><div>{{Chembox<br />
| Verifiedfields = changed<br />
| Watchedfields = changed<br />
| verifiedrevid = 450708458<br />
| ImageFile = Basic-beryllium-acetate-3D-balls.png<br />
| ImageSize = 240<br />
| ImageAlt = Beacetate.png<br />
| SystematicName = Hexa-μ-acetato(O,O')-μ4-oxo-tetraberyllium(II)<br />
| OtherNames = Beryllium oxyacetate<BR>Beryllium oxide acetate<BR>Basic beryllium acetate<br />
| Section1 = {{Chembox Identifiers<br />
| CASNo_Ref = {{cascite|correct|CAS}}<br />
| CASNo = 19049-40-2<br />
| UNII_Ref = {{fdacite|correct|FDA}}<br />
| UNII = NL5ZW5U7JX<br />
| PubChem = 3035396<br />
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}<br />
| ChemSpiderID = 2299653<br />
| EINECS = 242-785-4<br />
| SMILES = O1[C-](C)O[Be+2]([O-2]456)(O[C-](C)O2)O[C-](C)O[Be+2]34O[C-](C)O[Be+2]25O[C-](C)O[Be+2]16O[C-](C)O3}}<br />
| Section2 = {{Chembox Properties<br />
| Formula = {{chem|C|12|H|18|Be|4|O|13}}<br />
| MolarMass = 406.3122 g/mol<br />
| Appearance = colorless<br />
| Density = <br />
| MeltingPtC = 285<br />
| MeltingPt_notes = <br />
| BoilingPtC = 330<br />
| BoilingPt_notes = <br />
| pKa = <br />
| SolubleOther = soluble<br />
| Solvent = chloroform}}<br />
| Section3 = {{Chembox Hazards<br />
| MainHazards = highly toxic<br />
| FlashPt =<br />
| AutoignitionPt =<br />
| REL = Ca C 0.0005 mg/m<sup>3</sup> (as Be)<ref name=PGCH>{{PGCH|0054}}</ref><br />
| PEL = TWA 0.002 mg/m<sup>3</sup><br/>C 0.005 mg/m<sup>3</sup> (30 minutes), with a maximum peak of 0.025 mg/m<sup>3</sup> (as Be)<ref name=PGCH/><br />
| IDLH = Ca [4 mg/m<sup>3</sup> (as Be)]<ref name=PGCH/><br />
}}<br />
}}<br />
<br />
'''Basic beryllium acetate''' is the [[chemical compound]] with the formula Be<sub>4</sub>O(O<sub>2</sub>CCH<sub>3</sub>)<sub>6</sub>. This [[Chemical compound|compound]] adopts a distinctive structure, but it has no applications and has been only lightly studied. It is a colourless solid that is soluble in organic solvents.<br />
<br />
==Preparation==<br />
It can be prepared by treating [[basic beryllium carbonate]] with hot [[acetic acid]].<br />
<br />
: {{Chem2|2 Be2CO3(OH)2 + 6 AcOH → Be4O(AcO)6 + 5 H2O + 2 CO2}}<br />
<br />
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.<ref><br />
{{cite book<br />
|last1=Moeller |first1=T.<br />
|year=1950<br />
|chapter=Basic Beryllium Derivatives of Organic Acids<br />
|editor1-last=Audrieth |editor1-first=L. F.<br />
|title=Inorganic Syntheses, Volume 3<br />
|volume=3<br />
|pages=4–9<br />
|publisher=[[John Wiley & Sons]]<br />
|doi=10.1002/9780470132340.ch2<br />
|isbn=978-0-470-13234-0<br />
}}</ref><br />
<br />
==Structure==<br />
"Basic [[acetates]]" consist of an ensemble of metal centres bound to a central oxide ion, and a collection of acetate [[ligand]]s. Basic beryllium acetate has a tetrahedral Be<sub>4</sub>O<sup>6+</sup> core with acetates (CH<sub>3</sub>CO<sub>2</sub><sup>−</sup>) spanning each of the pairs of Be<sup>2+</sup> centres.<ref><br />
{{cite journal<br />
|last1=Bragg |first1=W. H.<br />
|year=1923<br />
|title=Crystal Structure of Basic Beryllium Acetate<br />
|journal=[[Nature (journal)|Nature]]<br />
|volume= 111|issue= 2790|pages=532<br />
|bibcode=1923Natur.111..532B<br />
|doi=10.1038/111532a0<br />
|author1-link=William Henry Bragg<br />
|doi-access=free<br />
}}</ref><ref><br />
{{cite journal<br />
|last1=Pauling |first1=L.<br />
|last2=Sherman |first2=J.<br />
|year=1934<br />
|title=The Structure of the Carboxyl Group. II. The Crystal Structure of Basic Beryllium Acetate<br />
|journal=[[Proceedings of the National Academy of Sciences]]<br />
|volume=20 |issue=6 |pages=340–5<br />
|bibcode=1934PNAS...20..340P<br />
|doi=10.1073/pnas.20.6.340<br />
|pmid=16587899<br />
|pmc=1076415<br />
|url=http://authors.library.caltech.edu/11983/1/PAUpnas34b.pdf|author1-link=Linus Pauling<br />
|doi-access=free<br />
}}</ref> It consists of interlocking six-membered Be<sub>2</sub>O<sub>3</sub>C rings. The structure is relevant to its considerable stability (the compound is distillable at 330&nbsp;°C). <br />
[[File:Beacetate.png|center|250px|Schematic structure of basic beryllium acetate]]<br />
<br />
==Uses==<br />
The solubility of the salt in organic solvents (chloroform) is useful to extract and purify beryllium rich fractions for many purposes.<br />
Basic beryllium acetate single crystals can easily be grown and are helpful to align x-ray diffractometers and also as a reference in protein crystallography.<br />
<br />
==See also==<br />
* [[Zinc acetate|Basic zinc acetate]]<br />
* [[Basic beryllium nitrate]]<br />
<br />
==References==<br />
<references/><br />
<br />
{{clear}}<br />
{{Beryllium compounds}}<br />
{{Acetates}}<br />
<br />
[[Category:Beryllium compounds]]<br />
[[Category:Acetates]]</div>
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