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Basic beryllium acetate

April 04, 2023

Basic beryllium acetate is the chemical compound with the formula Be4O(O2CCH3)6. This 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.

Basic beryllium acetate
Names
Systematic IUPAC name
Hexa-μ-acetato(O,O')-μ4-oxo-tetraberyllium(II)
Other names
Beryllium oxyacetate
Beryllium oxide acetate
Basic beryllium acetate
Identifiers
  • 19049-40-2 Y
3D model (JSmol)
  • Interactive image
ChemSpider
  • 2299653 N
ECHA InfoCard 100.038.881
EC Number
  • 242-785-4
  • 3035396
UNII
  • NL5ZW5U7JX Y
  • DTXSID80940617
  • o1c(C)[o+][Be-2]([O+2]456)([o+]c(C)o2)[o+]c(C)o[Be-2]34[o+]c(C)o[Be-2]25[o+]c(C)o[Be-2]16[o+]c(C)o3
Properties
C
12H
18Be
4O
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
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 highly toxic
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 0.002 mg/m3
C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be)[1]
REL (Recommended)
 Ca C 0.0005 mg/m3 (as Be)[1]
IDLH (Immediate danger)
 Ca [4 mg/m3 (as Be)][1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)

Preparation

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

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

Structure

"Basic acetates" consist of an ensemble of metal centres bound to a central oxide ion, and a collection of acetate ligands. Basic beryllium acetate has a tetrahedral Be4O6+ core with acetates (CH3CO2−) spanning each of the pairs of Be2+ centres.[3][4] It consists of interlocking six-membered Be2O3C rings. The structure is relevant to its considerable stability (the compound is distillable at 330 °C).

 

Uses

The solubility of the salt in organic solvents (chloroform) is useful to extract and purify beryllium rich fractions for many purposes. 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.

See also

References

  1. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0054". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ Moeller, T. (1950). "Basic Beryllium Derivatives of Organic Acids". In Audrieth, L. F. (ed.). Inorganic Syntheses, Volume 3. Inorganic Syntheses. John Wiley & Sons. pp. 4–9. doi:10.1002/9780470132340.ch2. ISBN 978-0-470-13234-0.
  3. ^ Bragg, W. H. (1923). "Crystal Structure of Basic Beryllium Acetate". Nature. 111 (2790): 532. Bibcode:1923Natur.111..532B. doi:10.1038/111532a0.
  4. ^ Pauling, L.; Sherman, J. (1934). "The Structure of the Carboxyl Group. II. The Crystal Structure of Basic Beryllium Acetate" (PDF). Proceedings of the National Academy of Sciences. 20 (6): 340–5. Bibcode:1934PNAS...20..340P. doi:10.1073/pnas.20.6.340. PMC 1076415. PMID 16587899.

April 04, 2023
basic, beryllium, acetate, chemical, compound, with, formula, be4o, o2cch3, this, compound, adopts, distinctive, structure, applications, been, only, lightly, studied, colourless, solid, that, soluble, organic, solvents, namessystematic, iupac, name, hexa, ace. Basic beryllium acetate is the chemical compound with the formula Be4O O2CCH3 6 This 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 Basic beryllium acetate NamesSystematic IUPAC name Hexa m acetato O O m4 oxo tetraberyllium II Other names Beryllium oxyacetateBeryllium oxide acetateBasic beryllium acetateIdentifiersCAS Number 19049 40 2 Y3D model JSmol Interactive imageChemSpider 2299653 NECHA InfoCard 100 038 881EC Number 242 785 4PubChem CID 3035396UNII NL5ZW5U7JX YCompTox Dashboard EPA DTXSID80940617SMILES o1c C o Be 2 O 2 456 o c C o2 o c C o Be 2 34 o c C o Be 2 25 o c C o Be 2 16 o c C o3PropertiesChemical formula C12 H18 Be4 O13Molar mass 406 3122 g molAppearance colorlessMelting point 285 C 545 F 558 K Boiling point 330 C 626 F 603 K Solubility in chloroform solubleHazardsOccupational safety and health OHS OSH Main hazards highly toxicNIOSH US health exposure limits PEL Permissible TWA 0 002 mg m3C 0 005 mg m3 30 minutes with a maximum peak of 0 025 mg m3 as Be 1 REL Recommended Ca C 0 0005 mg m3 as Be 1 IDLH Immediate danger Ca 4 mg m3 as Be 1 Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa N verify what is Y N Infobox references Contents 1 Preparation 2 Structure 3 Uses 4 See also 5 ReferencesPreparation EditIt can be prepared by treating basic beryllium carbonate with hot acetic acid 2 Be2 CO3 OH 2 6 AcOH Be4 O AcO 6 5 H2 O 2 CO2Basic beryllium acetate is insoluble in water but soluble in chloroform consistent with it being nonpolar It melts and sublimes in a vacuum without decomposition 2 Structure Edit Basic acetates consist of an ensemble of metal centres bound to a central oxide ion and a collection of acetate ligands Basic beryllium acetate has a tetrahedral Be4O6 core with acetates CH3CO2 spanning each of the pairs of Be2 centres 3 4 It consists of interlocking six membered Be2O3C rings The structure is relevant to its considerable stability the compound is distillable at 330 C Uses EditThe solubility of the salt in organic solvents chloroform is useful to extract and purify beryllium rich fractions for many purposes 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 See also EditBasic zinc acetate Basic beryllium nitrateReferences Edit a b c NIOSH Pocket Guide to Chemical Hazards 0054 National Institute for Occupational Safety and Health NIOSH Moeller T 1950 Basic Beryllium Derivatives of Organic Acids In Audrieth L F ed Inorganic Syntheses Volume 3 Inorganic Syntheses John Wiley amp Sons pp 4 9 doi 10 1002 9780470132340 ch2 ISBN 978 0 470 13234 0 Bragg W H 1923 Crystal Structure of Basic Beryllium Acetate Nature 111 2790 532 Bibcode 1923Natur 111 532B doi 10 1038 111532a0 Pauling L Sherman J 1934 The Structure of the Carboxyl Group II The Crystal Structure of Basic Beryllium Acetate PDF Proceedings of the National Academy of Sciences 20 6 340 5 Bibcode 1934PNAS 20 340P doi 10 1073 pnas 20 6 340 PMC 1076415 PMID 16587899 Retrieved from https en wikipedia org w index php title Basic beryllium acetate amp oldid 1122060033, wikipedia, wiki, book, books, library,

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