The oxygen chemistry of vanadium

1 TiOa-I Rutile, anatase, brookite ACSc 1960 14 1161 

In V2O3 and the oxides intermediate between V2O3 and VO2 there is octahedral coordination of V, appreciably distorted in some cases. For example, in V4O7 V—0 ranges from 1-78 to 2-12 A, and in monoclinic VO2 from 1-76 to 2-06 A, but in the 

VO NaCl structure (homogeneous at 900°C over range VO0.g0-VO1.20) Refs. 1 and 2 above 

tetragonal superstucture of NaCl type (V-deficient) ACSc 1960 14 465 

VO 2 Monoclinic (Mo02-type distorted rutile) ACSc 1970 24 420 

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