Experimental EXAFS data (black lines) fitted with a model (Table 3) formed by ab initio-calculated scattering paths from the FEFF program (red lines), a/ [V(H2O)6]3+ in water, b/ [V(OH)3(H2O)3] in water, c/ [VO(H2O)5]2+ in water, d/ solid [VO(H2O)5]SO4, e/ [VO(OSMe2)5]2+ in dmso, f/ solid [VO(OSMe2)5](CF3SO3)2, g/ [VO(dmpu)4]2+ in dmpu, h/ [VO2(H2O)4]+ in water, i/ [VO2(OSMe2)4]+ in dmso, j/ solid [VO2(OSMe2)4]CF3SO3, and k/ [VO2(OSMe2)3]+ in dmpu.