Vanadyl isopropoxide

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Vanadyl isopropoxide
Other names
Triisopropoxyvanadium(V) oxide; VTIP; Vanadium(V) trisisopropoxide oxide
3D model (JSmol)
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EC Number
  • 226-997-4
  • InChI=1S/3C3H8O.O.V/c3*1-3(2)4;;/h3*3-4H,1-2H3;;
  • CC(C)O.CC(C)O.CC(C)O.O=[V]
Molar mass 244.205 g·mol−1
Melting point −14 to −11 °C (7 to 12 °F; 259 to 262 K)
Boiling point 242 °C (468 °F; 515 K)
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
H226, H315, H319, H335
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Vanadyl isopropoxide is the metal alkoxide with the formula VO(O-iPr)3 (iPr = CH(CH3)2). A yellow volatile liquid, it is a common alkoxide of vanadium. It is used as a reagent and as a precursor to vanadium oxides.[1] The compound is diamagnetic. It is prepared by alcoholysis of vanadyl trichloride:

VOCl3 + 3 HOCH(CH3)2 → VO(OCH(CH3)2)3 + 3 HCl

The related cyclopentanoxide VO(O-CH(CH2)4)3 is a dimer, one pair of alkoxide ligands bind weakly trans to the vanadyl oxygens.[2]


  1. ^ Krumeich, F.; Muhr, H.-J.; Niederberger, M.; Bieri, F.; Schnyder, B.; Nesper, R. (1999). "Morphology and Topochemical Reactions of Novel Vanadium Oxide Nanotubes". Journal of the American Chemical Society. 121 (36): 8324–8331. doi:10.1021/ja991085a.
  2. ^ Hillerns, Frank; Olbrich, Falk; Behrens, Ulrich; Rehder, Dieter (1992). "Tris(cyclopentanolato)oxovanadium(V): A Model for the Transition State of Enzymatic Phosphoester Cleavage". Angewandte Chemie International Edition in English. 31 (4): 447–448. doi:10.1002/anie.199204471.