高釩酰
外觀
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Vanadium_oxidation_states.jpg/300px-Vanadium_oxidation_states.jpg)
2、VO2+、V3+、和V2+在水溶液中。
高釩酰 | |
---|---|
![]() | |
識別 | |
CAS號 | 18252-79-4 ![]() |
SMILES |
|
性質 | |
化學式 | O2V |
摩爾質量 | 82.94 g·mol−1 |
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。 |
高釩酰(VO2+)是釩(V)的淡黃色[1]氧合陽離子。它是pH值介於0和2之間的酸性溶液中釩(V)的主要存在形式,其鹽是通過在此類溶液中氧化釩(V)的質子化形成的:[2][3]
- V
2O
5 + 2 H+
→ 2 VO+
2 + H
2O (K = ×10−2) 3.42
該離子可以與單個氨基多羧酸鹽配體[4]或與三齒席夫鹼配體形成絡合物。[5]
VO+
2/VO2+氧化還原電對用於釩氧化還原電池的陰極。[6]這對電偶的標準還原電位為 +1.00 V。[7]
參考文獻
[編輯]- ^ Kustin, Kenneth; Macara, Ian G. The New Biochemistry of Vanadium. Comments on Inorganic Chemistry. November 1982, 2 (1–2): 1–22. doi:10.1080/02603598208078107.
- ^ Bard, Allen J. Standard potentials in aqueous solution 1st. New York: CRC Press. 1985. ISBN 9781351414746.
- ^ 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. doi:10.1021/j150528a010.
- ^ 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. doi:10.1021/ic50158a048.
- ^ Pal, Satyanarayan; Pal, Samudranil. A dimeric pervanadyl (VO2+) complex with a tridentate Schiff base ligand. Journal of Chemical Crystallography. 2000, 30 (5): 329–333. S2CID 91300997. doi:10.1023/A:1009561224540.
- ^ 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. PMID 23647240. doi:10.1021/nn3046709.
- ^ Cotton, F. Albert; Wilkinson, Geoffrey; Murillo, Carlos A.; Bochmann, Manfred, Advanced Inorganic Chemistry 6th, New York: Wiley-Interscience, 1999, ISBN 0-471-19957-5
|