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- W2026999162 abstract "The end products of the reaction between copper(II) ion, an oxalyldihydrazide, ammonia, and excess of acetaldehyde, in air, have been isolated for oxalyldihydrazide itself and N-phenyloxalyldihydrazide. The two products are purple (I) and green (II) respectively and show very high absorption (ε 20 000–30 000 dm3 mol–1 cm–1) in the visible region of the spectrum. X-Ray analysis reveals that (I) crystallises in the monoclinic system [a= 9.373(2), b= 14.34(2), c= 26.129(4)Åβ= 102.25(1)° with space group P21/c] whereas the latter is orthorhombic [a= 16.331(2), b= 15.319(2), c= 15.336(4)Å with space group Cmc2,]. Both crystal structures contain anionic complex ions which have cage-like structures resulting from ring-closing reactions with acetaldehyde. The structures were solved from diffractometer data by the heavy-atom-method and refined by least-squares techniques to R 0.088 (1 836 reflections) and 0.077 (1 184 reflections)." @default.
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- W2026999162 title "An investigation of the interaction between copper(II) ion, oxalyldihydrazide, and molecular oxygen: crystal and molecular structures of products resulting from the addition of an excess of acetaldehyde" @default.
- W2026999162 doi "https://doi.org/10.1039/dt9760001528" @default.
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