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Acta Cryst. (2005). E61, m2018-m2020 [ doi:10.1107/S160053680502828X ]
-diethyl 5,6,7,8,15,16-hexahydro-6,7-dioxo-5,8,14,17-tetraazadibenzo[a,g]cyclotetradecine-13,18-dicarboxylato)-1
4N:2
2O6,O7;2
O6,O7:3
4N-dimethanoldinickel(II)zinc(II) bis(perchlorate)Online 17 September 2005
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