Phloroglucinol and hydrates

(Last updated 11 November 2024)

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Figure . The molecular diagram of Phloroglucinol.

Phloroglucinol was studied by Doris Braun as part of a series of compounds which have hydrate and anhydrate crystal structures.

CSP studies

REFCODEPHGLOL
FormulaC6 H6 O3
Common NamePhloroglucinol
IUPAC Systematic Name1,3,5-trihydroxybenzene
CSD RefcodesPHGLOL01
Search IdentifierA
ScientistDoris Braun
Date2012
PublicationBraun DE, Tocher DA, Price SL, Griesser UJ 2012. The Journal of Physical Chemistry B 116, 3961-3972. DOI: Open paper (10.1021/jp211948q)
Energy Model1
Study_ID20
ProgramsRigid CrystalPredictor, DMACRYS (2.0.2)
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinol_CP
Potential DescriptionCrystalPredictor GDMA2 (MP2/6-31G(d,p)) + FIT
Energy Model2
Study_ID11 (published)
ProgramsStudy_ID=20, DMAflex (2.0), DMACRYS (1.1.1)
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinol_CO
Potential DescriptionCrystalOptimizer GDMA2 (MP2/6-31G(d,p)) + FIT
ScientistLouise Price
DateJanuary 2024
Energy Model2a
Study_ID12
ProgramsStudy_ID=20, CrystalOptimizer (2.4.7.1), DMACRYS (2.3.1.1)
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinol_CO2
Potential DescriptionCrystalOptimizer GDMA2 (MP2/6-31G(d,p)) + FIT
Energy Model3
Study_ID30
ProgramsStudy_ID=12, DMACRYS (2.3.1.1), BZ-averaged props
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinol_PCM
Potential DescriptionGDMA2.2(PCMdielectric3(MP2/6-31G(d,p))) + FIT
REFCODEPHGLOH
FormulaC6 H6 O3 - 2(H2 O1)
Common NamePhloroglucinol dihydrate
IUPAC Systematic Name1,3,5-trihydroxybenzene dihydrate
CSD RefcodesPHGLOH02 (proton disordered)
Search IdentifierB
ScientistDoris Braun
Date2012
PublicationBraun DE, Tocher DA, Price SL, Griesser UJ 2012. J. Phys. Chem. B 116, 3961-3972. DOI: Open paper (10.1021/jp211948q)
Energy Model1
Study_ID20
ProgramsRigid CrystalPredictor (unknown), DMACRYS (2.0.2)
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinoldihydrate_CP
Potential DescriptionCrystalPredictor GDMA2 (MP2/6-31G(d,p)) (PBE1PBE/aug-cc-pvtz for water) + FIT
Energy Model2
Study_ID10
ProgramsStudy_ID=20, DMAflex (2.0), DMACRYS (1.1.1)
Location on S Drive\\CHEMISTRY_CPOSS\\Phloroglucinol\\Phloroglucinoldihydrate_CO
Potential DescriptionCrystalOptimizer GDMA2 (MP2/6-31G(d,p)) + FIT

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Figure . Crystal energy landscape of (left) phloroglucinol and (right) phloroglucinol dihydrate from previous work.

CSD structures (CSD version 5.44 with Jun and Sep Nov 2023 updates)

Table . Crystallographic information for CSD entries for phloroglucinol. Different forms (including hydrates) are coloured differently.

REFCODEspace groupZ’a / Åb / Åc / Åα / °β / °γ / °density / g cm-3Form
PHGLOHPnma0.56.7313.588.099090901.457Dihydrate
PHGLOH01Pnma0.56.584113.51288.03829090901.506Dihydrate
PHGLOH02Pnma0.56.594213.54558.04239090901.499Dihydrate
PHGLOH03Pnma0.56.587613.5178.03459090901.505Dihydrate
PHGLOH04Pnma0.56.620913.56068.04629090901.491Dihydrate
PHGLOLP21212114.839.3712.569090901.474I
PHGLOL01P21212114.77789.358112.44339090901.506I

Table . Experimental information for CSD entries for phloroglucinol and phloroglucinol dihydrate.

REFCODEspace groupR factorT / KYearComments
PHGLOHPnma232951957Recrystallized from water.1
PHGLOH01Pnma4.881002009Hydrogen disorder. Private communication.
PHGLOH02Pnma3.571002011Hydrogen disorder. Crystallization method not reported.2
PHGLOH03Pnma4.631002011Hydrogen disorder. Cocrystallization of 2,4,6-trihydroxybenzoic acid and benzamide (phloroglucinol is the main impurity in commercially available 2,4,6-trihydroxybenzoic acid).3
PHGLOH04Pnma3.732932012Hydrogen disorder. Slow cooling crystallization from water.4
PHGLOLP2121217.52951965Sublimation under vacuum.5
PHGLOL01P2121212.651052008Crystallization method not reported.6

Other notes

1. S. C. Wallwork and H. M. Powell, Acta Crystallographica, 1957, 10, 48-52.

2. L. H. Thomas, G. A. Craig, C. A. Morrison, A. M. Reilly and C. C. Wilson, Crystal Growth & Design, 2011, 11, 2045-2049.

3. C. C. Seaton and A. Parkin, Crystal Growth & Design, 2011, 11, 1502-1511.

4. D. E. Braun, D. A. Tocher, S. L. Price and U. J. Griesser, Journal of Physical Chemistry B, 2012, 116, 3961-3972.

5. K. Maartmann-Moe, Acta Crystallographica, 1965, 19, 155-157.

6. C. H. Gorbitz, M. Kaboli, M. L. Read and K. Vestli, Acta Crystallographica Section E, 2008, 64, o2023.

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