Oxovanadium(IV) pyrazolyl carboxylic acid complexes: synthesis, crystal structures of [VO(pzH)(HMPA)₂]₂ · 4H₂O (1) and VO(OH)(dmpzH)₂(C₆H₅COO) (2) (H₂MPA = 5-methyl-1H-pyrazole-3-carboxylic acid, pzH = pyrazole, dmpzH = 3,5-dimethyl pyrazole)

Zhang Peng Li, Yong Heng Xing, Yuan Hong Zhang, Guang Hua Zhou, Chun Guang Wang, Jing Li, Xiao Qing Zeng, Mao Fa Ge and Shu Yun Niu

Journal of Coordination Chemistry 62 ( 4 ): 564 - 576 , 2009