[1] Wisniewski, M.Z. (1997) Pd(II) complexes with some derivatives of pyrazol5one. Polish Journal of Chemistry, 71(2), 259260.
[2] Lu, J., Zhang, L., Liu, L., Liu, G., Jia, D., Wu, D. and Xu, G. (2008) Study of fluorescence properties of several 4acyl pyrazolone derivatives and their Zn(II) complexes. Spectrochimica Acta Part A, 71(3), 10361041.
[3] Kuncheria, B. and Indrasenan, P. (1988) Thorium (IV) nitrate complexes with some substituted pyrazole5ones. Indian Journal of Chemistry, 27A, 10051007.
[4] Vogel, I. (1978) A text book of practical organic chemistry. 4th Edition, Longman, London.
[5] Tantawy, F., Goda, F. and Abdelal, A.M. (1995) Synthesis and characterization of certain new 3methyl4(subs tituted phenylazo) isoxazol5ones and 3methyl4 (substituted phenylazo)pyrazole5ones as potential antibacterial agents. The Chinese Pharmaceutical Journal, 47(1), 3745.
[6] Rao, S. and Mittra, A.S. (1978) Synthesis and fungitoxicity of 1phenyl3methyl4mono arylidene2pyrazolin 5thione. Journal of the Indian Chemical Society, 55(7), 745746.
[7] Fitton, A.O. and Smalley, R.K. (1968) Practical heterocyclic chemistry. Academic Press, London and New York.
[8] Karci, F. and Ertan, N. (2002) Hetarylazo disperse dyes derived from 3methyl1(3′, 5′dipiperidinostriazinyl) 5pyrazolone as coupling component. Dyes and Pigments, 55(23), 99108.
[9] Ibrahim, S.A., ElGahami, M.A., Khafagi, Z.A. and ElGyar, S.A. (1991) Structure and antimicrobial activity of some new azopyrazolone chelates of Ni(II) and Cu(II) acetates, sulfates and nitrates. Journal of Inorganic Biochemistry, 43(1), 17.
[10] AbdelLatif, S.A. (2001) Synthesis and characterization of some 3phenyl4arylazo5pyrazolones with La(III), Ce(III), Th(IV) and UO2(VI) complexes. Synthesis and Reactivity in Inorganic, MetalOrganic and Chemistry, 31(8), 13551374.
[11] AbdelLatif, S.A. and Hassib, H.B. (2002) Studies of Mn(II), Co(II), Ni(II) and Cu(II) Chelates with 3 Phenyl4(pmethoxyphenylazo)5pyrazolone. Journal of Thermal Analysis and Calorimetry, 68(3), 983995.
[12] Hassib, H.B. and AbdelLatif, S.A. (2003) Potentiometric, spectrometric thermal and conductimetric studies on some 3phenyl4(arylazo)5pyrazolones and their complexes with divalent cobalt metal ion. Spectrochimica Acta Part A, 59(11), 24252434.
[13] Sarin, R. and Munshi, K.N. (1972) Thermodynamics of complex formation of indium metal ion with mercapto hydroxyl and amino substituted succinic acid. Journal of Inorganic and Nuclear Chemistry, 34(2), 581590.
[14] Britton, H.T.S. (1952) Hydrogen ions. 2nd Edition, Chapman and Hall, London.
[15] West, T.S. (1969) Complexemetry with EDTA and related reagents. 3rd Edition, B. D. H. Chemical Ltd Poole, London,.
[16] Vogel, I. (1956) Practical organic chemistry including quantitative organic analysis. 3rd Edition, Longmans, London.
[17] Irving, H. and Rossotti, H.S. (1953) Methods for computing successive stability constants from experimental formation curves. Journal of Chemical Society, 3397 3405.
[18] Zumdal, S.S. (1997) Chemistry. 4th Edition, Houghton Mifflin Company.
[19] Vogel, A.I. (1956) Practical organic chemistry including quantitative organic analysis. 3rd Edition, Longmans, London.
[20] Issa, Y.M., AbdelGhani, N.T. and AbdelLatif, S.A. (1996) Spectrophotometric studies on some hydroxy nitrocoumarins. Egyptian Journal of Chemistry, 39(3), 235248.
[21] Bauer, H.H., Christian, G.D. and O'Reilly, J.E. (1978) Instrumental analysis. Allyn and Bacon Inc.
[22] McMurry, J. (2000) Organic chemistry. 5th Edition, Brooks/Cole, USA.
[23] Schwarzenbach, G. and Flaschk, H. (1969) Complexometric titrations. Methuen and Co. Ltd., London.
[24] Moeller, T., Martin, D.F., Thompson, L.C., Ferrus, R., Feistel, G.R. and Randal, W.J. (1965) The coordination chemistry of yttrium and the rare earth metal ions. Chemical Reviews, 65(1), 150.
[25] Gutmann, K. (1966) Conductimetric titration of charge transfer complexes in solution. Electrochimica Acta, 11(6), 555568.
[26] Singh, P. and Ojha, A.C. (1980) Synthesis of Nisoni ctinyl3methyl4(substitutedhydrazono)2pyrazolin5 one. Journal of the Indian Chemical Society, 57(12), 11721173.
[27] Snavely, F.A. and Krecker, B.D. (1959) Metal derivatives of arylazopyrazolone dyes III, molarity quotients of para and metasubstituted pyrazolone dyes. Journal of the American Chemical Society, 81(16), 41994200.
[28] William, W.P. (1993) Inorganic chemistry. 2nd Edition, Academic Press Inc.
[29] Manku, G.S., Gupta, R.D., Bhat, A.N. and Jain, B.D. (1968) Determination of the stability constants of some lanthanon complexes with 1nitroso2naphthol, 2ni troso1naphthol, and 3nitroso4hydroxycoumarin. Journal of the Less Common Metals, 16(4), 343350.
[30] Debye, P. and Hückel, E. (1923) Physik. Z., 24, 185206.
[31] Saxena, R.S. and Gupta, A. (1984) Potentiometric determination of dissociation constants of dithiodipropionic acid in different media. Journal of the Electrochemical Society India, 33(1), 8990.
[32] Yadav, S.S. and Saxena, R.S. (2009) Formation constants and thermodynamic parameters of some triligand complexes of lanthanides. Journal of the Indian Chemical Society, 86(2), 168170.