Summary
Mono, bis and tris complexes of rhodium(III) with phenyl-2-picolylketone-2-pyridyl hydrazone (PPKPyH) have been characterized. In every case, the imino-proton of PPKPyH shows marked acidity associated with the coordination to rhodium(III). Electronic spectra show that all complexes are octahedral. The B′-values suggest a strong covalency in the metal-ligand σ-bond and the Dq-values indicate a medium-strong ligand field. The magnetic susceptibility indicates that PPKPyH forms low-spin complexes with rhodium(III).1H n.m.r. spectra show that the tris(ligand) complexes arecis isomers. I.r. spectra show that the ligand is neutral or monobasic tridentate or bidentate. Far i.r. studies show that [Rh(PPKPyH)X3] · 2 H2O (X = Cl, Br or I) aremer isomers. The effect of pH variation on the rection products is also discussed.
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M. F. El-Shazly, T. M. Salem, A. El-Dissouky and A. M. Hindawey,Inorg. Chim. Acta, 25, 55 (1977).
M. F. El-Shazly, A. El-Dissouky, T. M. Salem and M. M. Osman,Inorg. Chim. Acta, 40, 1 (1980).
M. M. Abou-Sekkina, A. El-Dissouky and A. Z. El-Sonbati,Acta Chim. Hung., 114, 77 (1983).
A. El-Dissouky, G. B. Mohamed and A. Z. El-Sonbati,Inorg. Chim. Acta, 74, 279 (1983).
A. El-Dissouky, S. A. El-Shazly and M. Gaafar,Transition Met. Chem., 8, 175 (1983).
A. El-Dissouky, A. M. Hindawey and A. Abdel-Salem,Gazz. Chim. Ital., 113, 61 (1982).
A. El-Dissouky, M. M. Abou-Sekkina, M. El-Kersh and A. Z. El-Sonbati,Transition Met. Chem., 9, 372 (1984).
A. El-Dissouky,Transition Met. Chem., 9, 112 (1984).
A. El-Dissouky and L. S. Refaat,Inorg. Chim. Acta, 87, 213 (1984).
A. El-Dissouky, A. M. Hindawey and A. Abdel-Salem,Inorg. Chim. Acta, in press, ICA, 849/86.
C. Allan, J. Gibson and A. Neville,Anal. Chim. Acta, 51, 249 (1970).
M. A. Quddus and C. F. Bell,J. Inorg. Nucl. Chem., 33, 2001 (1971).
S. A. Leu and K. Tatt,Microchim. Acta, 2, 295 (1974).
A. Philip and P. Cesare,African Ital. Applied, 755, 31 (1970).
Beliniski, Stamslow and U. Tadewz,Acta Pol. Pharm., 32, 159 (1975).
J. C. Thomas, E. C. Berkoff, B. W. Flog and C. Pellerano,J. Med. Chem., 18, 245 (1975).
A. El-Dissouky, G. B. Mohamed and L. S. Refaat,Transition Met. Chem., 9, 29 (1984).
C. K. Jorgensen,Absorption Spectra and Chemical Bonding in Complexes, Pergamon Press, Oxord, 1964.
T. Dunn,J. Chem. Soc., 623 (1959).
C. J. Ballhausen,Introduction to Ligand Field Theory, McGraw-Hill, New York, 1962.
A. B. P. Lever,Inorganic Electronic Spectroscopy, Elsevier, Amsterdam, 1968.
G. Marcotrigiano, G. C. Pellacani, C. Preti and G. Tosi,Bull. Chem. Soc. Jpn., 48, 1018 (1975).
E. Pertelli, C. Preti and G. Tosi,J. Inorg. Nucl. Chem., 37, 1421 (1975).
P. Dini, J. C. J. Bart, E. Santoro, G. Gum and N. Giordano,Inorg. Chim. Acta, 17, 97 (1976).
C. K. Jorgensen,Acta Chim. Scand., 10, 500 (1956).
C. F. Bell and D. R. Rose,Inorg. Chem., 7, 325 (1968).
C. Preti, L. Tassi, G. Tosi, P. Zannini and A. F. Zanoli,Aust. J. Chim., 35, 1829 (1982).
C. Preti and G. Tosi,Spectrochim. Acta (A), 31, 1139 (1976).
C. Preti and G. Tosi,Aust. J. Chem., 33, 57 (1980).
C. Preti and G. Tosi,Transition Met. Chem., 3, 17 (1978).
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El-Dissouky, A., Kasem, A. & EI-Sonbati, A.Z. Metal chelates of heterocyclic nitrogen-containing ketones, Part XXII. Spectroscopic studies on rhodium(III) complexes of phenyl-2-picolylketone-2-pyridyl hydrazone. Transition Met Chem 11, 449–452 (1986). https://doi.org/10.1007/BF01386872
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DOI: https://doi.org/10.1007/BF01386872