Molybdocene dihydride

Molybdocene dihydride is the organomolybdenum compound with the formula (η⁵-C₅H₅)₂MoH₂. Commonly abbreviated as Cp₂MoH₂, it is a yellow air-sensitive solid that dissolves in some organic solvents.

Molybdocene dihydride

Names
Other names dihydridobis(cyclopentadienyl)molybdenum(IV)
Identifiers
CAS Number	1291-40-3
3D model (JSmol)	Interactive image
PubChem CID	11984635
InChI InChI=1S/2C5H5.Mo.2H/c2*1-2-4-5-3-1;;;/h2*1-5H;;;/q-5;-1;;; Key: QCRPIEJRQZHDSX-UHFFFAOYSA-N
SMILES [cH-]1cccc1.[cH-]1cccc1.[H][Mo+2][H]
Properties
Chemical formula	C10H12Mo
Molar mass	228.16 g·mol−1
Appearance	yellow-brown powder
Melting point	163–165 °C (325–329 °F; 436–438 K)
Solubility in water	insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

The compound is prepared by combining molybdenum pentachloride, sodium cyclopentadienide, and sodium borohydride.^[1][2] The dihydride converts to molybdocene dichloride upon treatment with chloroform.

The compound adopts a "clamshell" structure where the Cp rings are not parallel.^[3]