Vibrational spectra of binary glassy materials $As_{2}O_{3}-PbO$ (Ramanand u.r.), $V_{2}O_{5}-PbO$ (u.r.) and $As_{2}O_{3}-V_{2}O_{5}$ (u.r.) are reported and discussed. In the case of $As_{2}O_{3}-PbO$ systems, spectra interpretation suggests a modification of $As_{2}O_{3}$ and $V_{2}O_{5}$ structures and the formation of structural centers typical, respectively, of metaarsenites and metavanadates. For these demolitions, the probable mechanisms are proposed. In the case of $As_{2}O_{3}-V_{2}O_{5}$ system (64-30% of $As_{2}O_{3}$), the spectra agree with the ortho-, pyro-, metavanadates formation hypothesis together with a $V_{2}O_{5}$ littLe modification, while for the same system (30-10% of $As_{2}O_{3}$) the spectra are not in disagreement with the supposed presence of $V^{+4}$ species.
Referenze Bibliografiche
[1] S. GOCAN, L. STANESCU, I. ARDELEAN e ST. MAN, «Stud. Univ. Babes-Bolyai, Ser. Phys.», 16 (1), 3 (1971).
[2] A. BERTOLUZZA, M. A. MORELLI e C. FAGNANO, «Rend. Accad. Naz. Lincei», 52, 923 (1972).
[3] A. BERTOLUZZA, A. M. MARINANGELI e R. SIMONI, in corso di stampa su «Rend. Accad. Naz. Lincei».
[4] E. P. DENTON, H. RAWSON e J. E. STANWORTH, «Nature», 173, 1030 (1954).
[5] H. M. HEATON e H. MOORE, «J. Soc. Glass Technol.», 41, 3-27T (1957).
[6] A. I. VOGEL, «Quantitat. Inorg. Anal.», III ed. Longmans, pp. 355, 362 (1961).
[7] A. BERTOLUZZA, M. A. MORELLI e C. FAGNANO, «Rend. Accad. Naz. Lincei», 52, 728 (1972).
[8] H. BOTTICKER, K. PLIETH, E. REUBER-KURBS e I. N. STRÄNSKI, «Z. Anorg. allg. Chem.», 266, 303 (1951).
[9] K. PLIETH, E. REUBER e I. N. STRÄNSKI, «Z. Anorg. allg. Chem.», 280, 205 (1955).
[10] K. PLIETH e K. ZCCHORPER, «Glastech. Ber.», 42, 359 (1969).
[11] A. STAVENHANGEN, «J. Prakt. Chem.», 2, 51 (1895).
[12] J. W. MENARY, «Acta Cryst.», 11, 742 (1958).
[13] H. SIEBERT, «Z. Anorg. allg. Chem.», 274, 24 (1953).
[14] T. R. GILSON, O. F. BIZRI e N. CHEETHMAN, «J. Chem. Soc., Dalton Trans.», 3, 291 (1973).
[15] BERZELIUS, «Ann. Chim. Phys.», 47, 401 (1831).
[16] L. D. FREDERICKSON e D. M. HANSE, «Analyt. Chem.», 35, 818 (1963).
[17] W. P. GRIFFITH e P. J. B. LESNIAK, «J. Chem. Soc.», A 1066, (1969).
[18] A. A. FOTIEV e L. K. TOLSTOV, «Russian J. Inorg. Chem.», 15 (4), 514 (1970).
[19] C. L. CHRIST, C. L. CLARK e H. T. EVANS, «Acta Cryst.», 7, 801 (1954).
[20] H. T. EVANS e S. BLOCK, «Bull. Geol. Soc. Am.», 64, 1419 (1953).
[21] A. BYSTRÖM et al., «Acta Chem. Scand.», 4, 1119 (1950).
[22] S. GOCAN, L. STANESCU, I. ARDELEAN e ST. MAN, «Stud. Univ. Babes-Bolyai, Ser. Chem.», 15 (1), 43 (1970).
[23]
L. STANESCU,
S. GOCAN,
I. ARDELEAN e
ST. MAN, «
Stud. Univ. Babes-Bolyai, Ser. Math-Phys»,
14 (2), 81 (
1969). |
MR 257339[24] J. SELBIN, «Chem. Rev.», 65, 153 (1965).
[25] I. LUKACS, C. STRUSIEVICI e C. LITEANU, «Z. Anorg, allg. Chem.», 326, 331 (1964).
[26] G. W. ANDERSON e W. D. COMPTON, «J. Chem. Phys.», 52, 6166 (1970).
Con il contributo del Ministero per i Beni e le Attività Culturali