X-Ray Absorption Studies of Poly(vinylferrocene) Polymers for Anion Separation

作者: M. Balasubramanian , M. T. Giacomini , H. S. Lee , J. McBreen , J. H. Sukamto

DOI: 10.1149/1.1496486

关键词: Inorganic chemistryXANESX-ray absorption spectroscopyExtended X-ray absorption fine structureElectrochemistryAnalytical chemistryPerrhenateFerroceneAcetylferroceneAbsorption spectroscopyChemistry

摘要: X-ray absorption spectroscopy (XAS) was used to study the electrochemical incorporation of perrhenate anion, from a 0.1 M NH 4 ReO solution, into poly(vinylferrocene) (PVFc) and modified PVFc (a copolymer 30% t-butyl acetylferrocene 70% divinyl ferrocene). The polymers were deposited on carbon cloth current collector solution in CH 2 Cl . In situ XAS measurements done at Fe K edge reduced 0.9 V vs. Ag/AgCl. Ex Re L 3 after oxidation V. oxidized electrodes washed water remove dissolved NH4ReO4 electrode pores. both wet-washed that dried. showed ferrocene ferrocenium moiety Fe--C bond distance increased 2.05 2.08 A. Both near-edge extended fine structure (EXAFS) results are consistent with having >75% moieties polymer K-edge EXAFS no direct indication interaction - At only slight change XANES features.

参考文章(14)
J. D. Dunitz, L. E. Orgel, A. Rich, The crystal structure of ferrocene Acta Crystallographica. ,vol. 9, pp. 373- 375 ,(1956) , 10.1107/S0365110X56001091
M. W. Day, J. Qin, C. Yang, Ferrocene, Ferrocenium and a Bis(maleonitriledithiolate) Complex of Nickel Acta Crystallographica Section C-crystal Structure Communications. ,vol. 54, pp. 1413- 1416 ,(1998) , 10.1107/S0108270198002340
Irena Jureviciute, Stanley Bruckenstein, A.Robert Hillman, Counter-ion specific effects on charge and solvent trapping in poly(vinylferrocene) films Journal of Electroanalytical Chemistry. ,vol. 488, pp. 73- 81 ,(2000) , 10.1016/S0022-0728(00)00190-X
Xiangqun Zeng, Seongbae Moon, Stanley Bruckenstein, A. R. Hillman, XPS Study of Counterion Incorporation into Poly(vinylferrocene). web science. ,vol. 70, pp. 2613- 2617 ,(1998) , 10.1021/AC971318L
J. A. Seel, J. R. Dahn, Electrochemical Intercalation of PF 6 into Graphite Journal of The Electrochemical Society. ,vol. 147, pp. 892- 898 ,(2000) , 10.1149/1.1393288
E.A. Stern, M. Newville, B. Ravel, Y. Yacoby, D. Haskel, The UWXAFS analysis package : philosophy and details Physica B-condensed Matter. ,vol. 208, pp. 117- 120 ,(1995) , 10.1016/0921-4526(94)00826-H
A. L. Ankudinov, B. Ravel, J. J. Rehr, S. D. Conradson, REAL-SPACE MULTIPLE-SCATTERING CALCULATION AND INTERPRETATION OF X-RAY-ABSORPTION NEAR-EDGE STRUCTURE Physical Review B. ,vol. 58, pp. 7565- 7576 ,(1998) , 10.1103/PHYSREVB.58.7565
S. I. Zabinsky, J. J. Rehr, A. Ankudinov, R. C. Albers, M. J. Eller, Multiple-scattering calculations of x-ray-absorption spectra Physical Review B. ,vol. 52, pp. 2995- 3009 ,(1995) , 10.1103/PHYSREVB.52.2995
F. A. Cotton, L. M. Daniels, I. Pascual, Ferrocenium Tetrachloroferrate Revisited, and Ferrocenium Tetrachloroaluminate Acta Crystallographica Section C-crystal Structure Communications. ,vol. 54, pp. 1575- 1578 ,(1998) , 10.1107/S0108270198007215