Spectrophotometric Study of Nitrogen Base Adducts of Nickel(II)-4-methyl-8–quinolinate | Zendy

T. Suresh | Zendy; S. Santosh Kumar | Zendy; N. M . Kottureshawara | Zendy; M. Revanasidappa | Zendy; Syed Khasim | Zendy; Suresh Suresh | Zendy

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Spectrophotometric Study of Nitrogen Base Adducts of Nickel(II)-4-methyl-8–quinolinate

Author(s) -

T. Suresh,

S. Santosh Kumar,

N. M . Kottureshawara,

M. Revanasidappa,

Syed Khasim,

Suresh Suresh

Publication year - 2007

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2008/989205

Subject(s) - hypsochromic shift , chemistry , adduct , bathochromic shift , dibasic acid , monobasic acid , pyridine , stoichiometry , steric effects , nickel , inorganic chemistry , phenanthroline , medicinal chemistry , polymer chemistry , organic chemistry , physics , quantum mechanics , fluorescence

Adduct formation constants have been determined by spectrophotometric study of a few typical bases with nickel(II) chelate of 4-methyl-8-quinolinol in chloroform. Bathochromic and hypsochromic shifts were observed in the visible range due to the adduct formation. Monobasic bases like pyridine, methyl substituted anilines and such other bases exhibit 1: 2 stoichiometry giving hexa – coordinated adductds . The dibasic bases such as 1,10-phenanthroline and 2,9- neocuproine exhibit 1 : 1 stoichiometry giving hexacoordinated adducts . The experimental results are discussed in terms of the basicity and steric effects of the various bases

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