Abstract
Polychelates of Mn(II), Fe(II), Co(II), Ni(II), and Cu(II) with 4,4′-dihydroxy-3,3′-diacetylbiphenyl-dithioxamide (DDBDO) have been prepared. Their structures were determined by visible reflectance spectroscopy and magnetic measurements in conjunction with thermogravimetric and IR measurements. Elemental analysis indicates a 1∶1 metal-ligand stoichiometry and the association of water molecules with the central metal. The decomposition temperature of the chelates is in the order Ni(II)>Fe(II)>Co(II)>Mn(II)>Cu(II). Thermal activation energies (E a ), calculated with the help of Freeman-Carroll and Sharp-Wentworth methods, are in agreement with each other. The polychelates were found to be semiconductive, and the activation energy obtained from semiconducting behavior follows the order Co(II)>Ni(II)>Fe(II)>Cu(II)>Mn(II). The probable structure, such as six coordinated octahedral for Mn(II) and Fe(II) polychelates and four coordinated square planar for Co(II), Ni(II), and Cu(II) polychelates, have been suggested.
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References
Aswar AS, Bahad PJ, Pardhi AV, Bhave NS (1988) J Polym Mater 5:233
Bhave NS, Kharat RB (1980) J Ind Chem Soc 57:871
Patil SA, Kulkarni VH (1984) Polyhedron 3(1):21
Nakamoto K (1970) Infrared spectra of inorganic and coordination compounds. Wiley-Interscience, New York
Heist LJ, Koster GF, Johnson AM (1959) J Am Chem Soc 80:6471
Lever ABP (1968) Inorganic electronic spectroscopy. Elsevier, New York (1968)
Paliwal LJ, Kharat RB (1988) Die Angew Makromel Chem 67:160
Cotton FA, Meyers AD (1960) J Am Chem Soc 82:5023
Ghosh SP, Mishra LK (1973) Jnorg Chim Acta 7:545
Shah NR, Shah JR (1981) J Ind Chem Soc 58:851
Natarajan C, Palaniandavar M (1983) J Ind Chem Soc 1:60
Figgis BN, Lewis J (1965) Prog Inorg Chem 6:192
Chiswell B, Livingstone SE (1965) J Chem Soc 97
Pignedoli A, Peyronei GZ (1971) Anorg Allg Chem 330:1031
Drago RS (1977) Physical method in chemistry. WB Sounders, London, p 316
Holm RH (1960) J Amer Chem Soc 82:563
Holt SL, Bonchard RJ, Carlin RL (1964) J Amer Chem Soc 86:519
Perry CL, Weber JM (1971) J Thorg Nuel Chem 33:1031
Shan SY, Dudak EP (1969) Thorg Chem 8:1360
Karampurwala AM, Patel RP, Shah JR (1980) Die Angew Makromol Chem 87:87
Dave LD, Kothari HK (1974) J Ind Chem Soc 12:771
Kidd MR, Watson WR (1969) Inorg Chem 8:1886
Nikolaev AV, Logvineko VA, Myachina LI (1969) Therm Analy 2:779 Acad Press, New York
Aswar AS, Bhave NS (1990) Polymer degradation and stability (in Press)
Freeman E, Carroll B (1958) J Phys Chem 62:394
Sharp JB, Wentworth SA (1969) Anal Chem 41:2060
Sceney CG, Hill JO, Magee RJ (1975) Thermochimica Acta 11:301
Aswar AS, Bhave NS (1989) Thermochimica Acta (in Press)
Aswar AS, Bhave NS (1990) Asian J Chem (in press)
Spiratos M, Rusu GI, Airinei A, Ciobanu A (1982) Dia Angew Makromol Chem 107:33
Jonker GH (1959) Phys Chem Solids 9:165
Kanda S, Eto K, Nogaito T (1967) J Poly Sci C17:151
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Aswar, A.S., Bhave, N.S. Thermal and electrical studies of some polychelates. Colloid Polym Sci 269, 547–552 (1991). https://doi.org/10.1007/BF00659907
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DOI: https://doi.org/10.1007/BF00659907