HEXAAQUACOBALT(II) AND HEXAAQUACADMIUM(II) 4-NITRO-2,3,5,6- TETRAOXOPYRIDINATES [M(H<SUB>2</SUB>O)<SUB>6</SUB>](C<SUB>5</SUB>HN <SUB>2</SUB>O<SUB>6</SUB>)<SUB>2</SUB> · 2H<SUB>2</SUB>O (M = CO AND CD): SYNTHESIS, STRUCTURES, AND PROPERTIES Article Kovalchukova O.V., Do Nguyen D., Strashnova S.B., Stash A.I., Bel'Skii V.K. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. Vol. 39. 2013. P. 234-238