Pervanadyl Explained

Pervanadyl is a pale yellow^[1] oxycation of vanadium(V). It is the predominant vanadium(V) species in acidic solutions with pH between 0 and 2, and its salts are formed by protonation of vanadium(V) oxide in such solutions:^{[2] [3]}

(K = )The ion can form a complex with a single aminopolycarboxylate ligand,^[4] or with tridentate Schiff base ligands.^[5]

The / redox couple is used at the cathode of the vanadium redox battery.^[6] The standard reduction potential of this couple is +1.00 V.

See also

• Vanadate, vanadium(V) oxyanions

Notes and References

1. Kustin . Kenneth . Macara . Ian G. . The New Biochemistry of Vanadium . Comments on Inorganic Chemistry . November 1982 . 2 . 1–2 . 1–22 . 10.1080/02603598208078107.
2. Book: Bard . Allen J. . Allen J. Bard . Standard potentials in aqueous solution . 1985 . . New York . 9781351414746 . 1st.
3. LaSalle . M. J. . Cobble . James W. . The Entropy and Structure of the Pervanadyl Ion . The Journal of Physical Chemistry . June 1955 . 59 . 6 . 519–524 . 10.1021/j150528a010.
4. Yamada . Shinkichi. . Ukei . Yuko. . Tanaka . Motoharu. . Kinetics and mechanism of the complexation reactions of pervanadyl ion with some aminopolycarboxylates . Inorganic Chemistry . April 1976 . 15 . 4 . 964–967 . 10.1021/ic50158a048.
5. Pal . Satyanarayan . Pal . Samudranil . A dimeric pervanadyl (VO2+) complex with a tridentate Schiff base ligand . Journal of Chemical Crystallography . 2000 . 30 . 5 . 329–333 . 10.1023/A:1009561224540. 91300997 .
6. Jin . Jutao . Fu . Xiaogang . Liu . Qiao . Liu . Yanru . Wei . Zhiyang . Niu . Kexing . Zhang . Junyan . Identifying the Active Site in Nitrogen-Doped Graphene for the VO 2+ /VO 2 + Redox Reaction . ACS Nano . 25 June 2013 . 7 . 6 . 4764–4773 . 10.1021/nn3046709. 23647240 .