Abstract

Chromatographic separation of the complexes cis- and trans-Co(en)2(S2O3)2−, cis- and trans-Co(en)2(SO3)2−, cis- and trans-Co(en)2Cl2+,cis-Co(en)2(N3)2+, cis-Co(en)2(SO3)(N3)0, Co(en)2(S2O3)(N3)0, and Co(en)2(S2O3)(OH2)+ (en = ethylenediamine) was carried out by high-performance liquid chromatography. Good separations were achieved on a μ-Bondapak C18 reversed-phase octadecyldimethylsilane (ODS) column using tributylmethylammonium cations and octylsulphonate anions. The efficiency and speed of the separations were superior to those obtained on a Partisil SCX ion exchange column.

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