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Absorption spectra and bond type in Co(II) aquoamino complexes
Authors:K B Yatsimirskii  I I Volchenskova
Institution:(1) Institute of General and Inorganic Chemistry, AS UkrSSR, Kiev
Abstract:Absorption spectra are reported for solutions containing Co(II) and ammonia. Spectra are calculated for five Co(II) aquoamino complexes. The spectra are used to determine Dq and B, parameters of the bonds in these compounds. It is found that Dq and B change nonlinearly and nonadditively. The parameters lambdac, Dt, Ds, deltasgr and deltapgr have also been established for Co(H2O)6]2+ and Co(NH3)6]2+. The parameter variation can be explained if the H2O molecules form weaker sgr bonds to the central atom than do the NH3 molecules, but are capable of dpgr-ppgr interaction.
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