a) Abundances of titanium-bearing solid and gaseous compounds computed at equilibrium at a disk pressure of 10^-4 bar as a function of the temperature for C/O = 0.55. Solid lines are for solid species and dashed lines for gases. b) Same as a) but for C/O = 1. c) Abundances of vanadium-bearing solid and gaseous compounds computed at equilibrium at a disk pressure of 10^-4 bar as a function of the temperature for C/O = 0.55. d) Same as c) but for C/O = 1.