Osmium(V) chloride

Names
Other names

pentachloroosmium, osmium pentachloride

Identifiers

CAS Number

* 71328-74-0

3D model (JSmol)

* Interactive image

ChemSpider |

* 4423016

PubChem CID

* 5257384

InChI

* InChI=1S/5ClH.Os/h5*1H;/q;;;;;+5/p-5

Key: UVOYHLXSTOWTCX-UHFFFAOYSA-I

SMILES

* Cl[Os](Cl)(Cl)(Cl)Cl

Properties

Chemical formula

| Cl5Os
Molar mass | 367.48 g·mol−1
Appearance  | black solid
Density | 4.09
Melting point | 160 °C (320 °F; 433 K)

Solubility in water

| soluble
Structure

Space group

| P21/c[1]

Lattice constant

a = 9.17 Å, b = 11.5 Å, c = 11.97 Å

α = 90°, β = 109°°, γ = 90°.[2]

Lattice volume (V)

| 1194 Å3

Formula units (Z)

| 8
Related compounds

Related compounds

| Osmium pentafluoride; Rhenium pentachloride

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Osmium(V) chloride is an inorganic chemical compound of osmium metal and chlorine with the chemical formula OsCl5.[3][4]

## Potential synthesis

[edit]

Osmium(V) chloride can be obtained in small amounts by reacting osmium hexafluoride with excess boron trichloride:[5]

2OsF6 \+ 4BCl3 → 2OsCl5 \+ 4BF3 \+ Cl2

It can also be obtained by the action of sulfur dichloride on osmium tetroxide:[2]

2OsO4 \+ 8SCl2 \+ 5Cl2 → 2OsCl5 \+ 8SOCl2

## Physical properties

[edit]

Osmium(V) chloride forms a black dimeric solid, isomorphic with rhenium(V) chloride. OsCl5 is sparingly soluble in non-polar solvents.[2] It is soluble in POCl3 to form a red-brown solution, which can crystallize OsCl5·POCl3.[6]

## References

[edit]

1. ^ "Crystallography Open Database". qiserver.ugr.es. Retrieved 31 March 2023.
2. ^ a b c Burns, Robert C.; O'Donnell, Thomas A. (1 November 1979). "Preparation and characterization of osmium pentachloride, a new binary chloride of osmium". Inorganic Chemistry. 18 (11): 3081–3086\. doi:10.1021/ic50201a027. ISSN 0020-1669. Retrieved 31 March 2023.
3. ^ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 1461\. ISBN 978-0-12-352651-9. Retrieved 31 March 2023.
4. ^ Dehnicke, Kurt; Lößberg, Rainer (1 December 1980). "Eine neue Synthese und das IR-Spektrum von Osmiumpentachlorid / A New Synthesis and the IR Spectrum of Osmiumpentachloride". Zeitschrift für Naturforschung B (in German). 35 (12): 1525–1528\. doi:10.1515/znb-1980-1207.
5. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2985\. ISBN 978-0-412-30120-9. Retrieved 31 March 2023.
6. ^ Dehnicke, Kurt; Lößberg, Rainer (1980-12-01). "Eine neue Synthese und das IR-Spektrum von Osmiumpentachlorid / A New Synthesis and the IR Spectrum of Osmiumpentachloride". Zeitschrift für Naturforschung B. 35 (12). Walter de Gruyter GmbH: 1525–1528\. doi:10.1515/znb-1980-1207. ISSN 1865-7117.

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Osmium compounds

Os(0)|

* Os(CO)5
* Os3(CO)12

Os(0,I)|

* H2Os3(CO)10

Os(I)|

* OsB
* OsI

Os(I,II)|

* Os2B3

Os(II)|

* OsB2
* OsBr2
* OsCl2
* OsP2
* OsI2

| Organoosmium(II) compounds|

* Os(C5H5)2
* OsHCl(CO)[P(C6H5)3]3

|

Os(III)|

* OsI3
* OsCl3
* OsBr3

Os(IV)|

* OsO2
* OsBr4
* OsCl4
* OsF

* OsI4 (hypothetical)
* H2OsCl6
* Na2OsCl6
* (NH4)2OsCl6
* [OsO(NH3)2](OH)2

Os(V)|

* OsF5
* OsCl5

Os(VI)|

* OsF6
* K2[OsO2(OH)4]
* [OsO2(NH3)4]Cl2

Os(VII)|

* OsF
7 (hypothetical)

Os(VIII)|

* OsO4
* OsS4
* K[OsO3N]
* OsF8 (hypothetical)

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Salts and covalent derivatives of the chloride ion

| HCl |  |  |  | He

|
|
|
|

LiCl | BeCl2 | B4Cl4
B12Cl12
BCl3
B2Cl4
+BO3 | C2Cl2
C2Cl4
C2Cl6
CCl4

+CO3 | NCl3
ClN3

+NO3 | ClxOy
Cl2O
Cl2O2
ClO
ClO2
Cl2O4
Cl2O6
Cl2O7
ClO4
+O | ClF
ClF3
ClF5 | Ne
NaCl | MgCl2 | AlCl
AlCl3 | Si5Cl12
Si2Cl6
SiCl4 | P2Cl4
PCl3
PCl5
+P | S2Cl2
SCl2
SCl4
+SO4 | Cl2 | Ar
KCl | CaCl
CaCl2 |  | ScCl3 | TiCl2
TiCl3
TiCl4 | VCl2
VCl3
VCl4
VCl5 | CrCl2
CrCl3
CrCl4 | MnCl2
MnCl3 | FeCl2
FeCl3 | CoCl2
CoCl3 | NiCl2 | CuCl
CuCl2 | ZnCl2 | GaCl
GaCl3 | GeCl2
GeCl4 | AsCl3
AsCl5
+As | Se2Cl2
SeCl2
SeCl4 | BrCl | Kr
RbCl | SrCl2 |  | YCl3 | ZrCl2
ZrCl3
ZrCl4 | NbCl3
NbCl4
NbCl5 | MoCl2
MoCl3
MoCl4
MoCl5
MoCl6 | TcCl3
TcCl4 | RuCl2
RuCl3
RuCl4 | RhCl3 | PdCl2 | AgCl | CdCl2 | InCl
InCl2
InCl3 | SnCl2
SnCl4 | SbCl3
SbCl5 | Te3Cl2
TeCl2
TeCl4 | ICl
ICl3 | XeCl
XeCl2
XeCl4
CsCl | BaCl2 | *  | LuCl3 | HfCl4 | TaCl3
TaCl4
TaCl5 | WCl2
WCl3
WCl4
WCl5
WCl6 | ReCl3
ReCl4
ReCl5
ReCl6 | OsCl2
OsCl3
OsCl4
OsCl5 | IrCl2
IrCl3
IrCl4 | PtCl2
PtCl4 | AuCl
(Au[AuCl4])2
AuCl3 | Hg2Cl2
HgCl2 | TlCl
TlCl3 | PbCl2
PbCl4 | BiCl3 | PoCl2
PoCl4 | AtCl | Rn
FrCl | RaCl2 | **  | LrCl3 | RfCl4 | DbCl5 | SgO2Cl2 | BhO3Cl | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og

*  | LaCl3 | CeCl3 | PrCl3 | NdCl2
NdCl3 | PmCl3 | SmCl2
SmCl3 | EuCl2
EuCl3 | GdCl3 | TbCl3 | DyCl2
DyCl3 | HoCl3 | ErCl3 | TmCl2
TmCl3 | YbCl2
YbCl3
**  | AcCl3 | ThCl3
ThCl4 | PaCl4
PaCl5 | UCl3
UCl4
UCl5
UCl6 | NpCl3
NpCl4 | PuCl3 | AmCl2
AmCl3 | CmCl3 | BkCl3 | CfCl3
CfCl2 | EsCl2
EsCl3 | FmCl2 | MdCl2 | NoCl2

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