Thermally induced isomerization and decomposition of N-(2-aminoethyl)-1,3-propanediamine complexes of nickel(II) in the solid state
作者： Subratanath Koner , Chandi Pariya , Nirmalendu Ray Chaudhuri
DOI: 10.1016/0040-6031(93)80503-3
关键词: Isomerization 、 Chelation 、 Stereochemistry 、 Chemical reaction 、 Crystallography 、 Chemistry 、 Decomposition 、 Phase (matter) 、 Endothermic process 、 Nickel 、 Octahedral molecular geometry
摘要: Abstract [Ni(aepn) 2 ]X · n H O, Ni(aepn)Y O and [Ni(aepn)Z ] (where aepn is N -(2-aminoethyl)-1,3-propanediamine; = 0 when X Cl, Br, NO 3 ClO 4 ; or Y 0.5SO 0.5SeO Z Br ) have been synthesized investigated thermally in the solid state. (X undergoes exothermic irreversible phase transitions on heating (238–261°C 220–244°C for ]SO ]SeO respectively, Δ −7.3kJ mol −1 ); ](ClO shows an endothermic transformation (228–240°C, 4.2kJ ). All complexes possess octahedral geometry latter explained terms of conformational changes individual chelate ring.
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