COPPER(I) OXIDE
Cu2O, 143.091 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.
Identifiers
- Molecular formula
- Cu₂O
- Molecular weight
- 143.091 g/mol
- Exact mass
- 141.85411 g/mol
- IUPAC name
- copper;oxocopper
- [Cu]O[Cu]
- InChI=1S/2Cu.O
- BERDEBHAJNAUOM-UHFFFAOYSA-N
Measured properties
Values somebody obtained from a sample and published. Where two sources report the same property they are both shown, in the units each used — a disagreement between them is information, and averaging it away would be inventing a number neither one gave.
- Boiling Point
- Decomp at 1800 °C
- Melting Point
- 1235 °C
- 1232 °C
- Density
- 6.0
- Relative density (water = 1): 6.0
- Solubility
- Crimson, scarlet, vermilion, deep or brownish-red, secondary mineral; adamantine or dull luster; brownish red streak; sol in nitric and concentrated hydrochloric acids; specific gravity: 5.85-6.15; Mo
- Soluble in ammonium hydroxide; in hydrochloric acid forming copper(I) chloride which dissolves in excess hydrochloric acid; with dil sulfuric acid or dil nitric acid the cupric salt is formed and half
- Vapor Pressure
- Negligible
- Refractive Index
- INDEX OF REFRACTION: 2.705
Calculated properties
Derived from the structure rather than from a sample. These are reproducible and they are not measurements: a calculated partition coefficient and a measured one can differ by a long way, and where both exist they are listed apart on purpose.
- Molecular weight
- 143.09 g/mol
- Exact mass
- 141.854109 Da
- Polar surface area
- 17.1 Ų
- Complexity
- 2
- H-bond donors
- 0
- H-bond acceptors
- 1
- logP
- -0.0734
- Topological polar surface area
- 9.23 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Rotatable bonds
- 0
- Molar refractivity
- 1.085 cm³/mol
- Fraction sp³ carbons
- 0
- QED drug-likeness
- 0.431
The molecule in three dimensions
The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.
Reactions it appears in
Other names for it
The systematic name on this record is copper;oxocopper.
The sources also call it (cupriooxy)copper, RefChem:1082154, Brown copper oxide, Caocobre, Caswell No. 266, CI 77402, Copox, copper (I) oxide, Copper hemioxide, Copper Nordox, Copper oxide (Cu2O), Copper oxide, red.
Structurally related
Seen alongside it in reaction records
Molecules that appear in the same recorded reactions as COPPER(I) OXIDE. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.
1,3-BIS(2,6-DIISOPROPYLPHENYL)-IMIDAZOLIDINIUM-CHLORIDE
C₂₇H₃₇ClN₂, 425.06 g/mol.
1,3-bis(2,6-dibenzhydryl-4-methoxyphenyl)-1H-imidazol-3-ium-2-ide
C₆₉H₅₈N₂O₂, 947.235 g/mol.
1,3-dicyclohexyl-1H-imidazol-3-ium chloride
C₁₅H₂₅ClN₂, 268.832 g/mol.
1,10-Phenanthroline
C₁₂H₈N₂, 180.21 g/mol.
1,3-Bis(1-adamantyl)imidazolium tetrafluoroborate
C₂₃H₃₃BF₄N₂, 424.335 g/mol.
1,3-Di-tert-butylbenzimidazolium chloride
C₁₅H₂₃ClN₂, 266.816 g/mol.
Where these values came from
reference compound database18346908
chemistry engine
What this page does not claim
The identifiers are what the source record holds, copied rather than recomputed. Measured values are reported as their source gave them, units and all; calculated values are marked as calculated and are not measurements. Where a field is absent the page says so, because a blank cell reads as a zero and a guessed value reads as a fact.
Nothing here is a hazard assessment, a purity statement or advice about handling a sample. A flash point quoted from a safety database is a number somebody published, not a judgement by us about whether this molecule is safe for what you intend.