Transformations of Polymers of 4,4'-Dipyridyl and Cobalt(II) and Manganese(II) Cymantrenates in the Presence of N-Donors of Different Denticity

It has been found that the reactions of a suspension of 1D-coordination polymers (CPs) {(µ-dipy)2Mn2[µ-(OOCC5H4)Mn(CO)3]2[η2-(OOCC5H4)Mn(CO)3]2·2MeOH}n and {[µ-dipy)Co[(OOCC5H4)Mn(CO)3]2[O(H)Me]2}n (where dipy is 4,4'-dipy) with monodentate pyrazole (Hpz) and 3,5-dimethylpyrazole (Hdmpz) upon boiling in CH2Cl2 lead to the formation of 1D-CPs {µ-dipy)Mn[(OOCC5H4)Mn(CO)3]2(Hpz)2}n (1) and {(µ-dipy)Co[η2-(OOCC5H4)Mn(CO)3][(OOCC5H4)Mn(CO)3](Hdmpz)· Hdmpz}n (2), respectively. In the initial manganese(II) polymer, a binuclear fragment with coordination of two Hpz molecules by a metal atom in 1 is destroyed, and in the case of cobalt(II), two alcohol molecules are replaced by an Hdmpz molecule, and one of the anions becomes η2-coordinated. As a result of the reaction of the initial cobalt(II) CP with 1,10-phenanthroline (Phen) containing a water molecule, binuclear complex Co2[(OOCC5H4)Mn(CO)3]4(Phen)2(µ-dipy)(OH2)2 (3) is formed. The synthesized compounds 1–3 were studied by chemical analysis, IR spectroscopy, and X-ray diffraction analysis.

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