Dialkyl sulfoxides complexes with nickel(II) nitrate and perchlorate |
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| Affiliation: | 1. Engineering Research Center of Photoelectric Functional Material, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, PR China;2. Hubei Key Laboratory of Processing and Application of Catalytic Materials, College of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang, 438000, PR China;3. Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China;4. Institut des Matériaux Poreux de Paris, UMR 8004 Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, Paris, France;1. Hubei Key Laboratory of Processing and Application of Catalytic Materials, College of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang 438000, PR China;2. Department of Chemistry, National University of Singapore, Singapore 117543, Singapore;3. Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China;4. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, PR China;5. Stoddart Institute of Molecular Science, Zhejiang University, Hangzhou 310027, PR China;1. Hubei Key Laboratory of Processing and Application of Catalytic Materials, College of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang, 438000, PR China;2. State Key Laboratory of Chemical Engineering, Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China;3. Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430205, PR China;4. Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, PR China;5. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210023, PR China |
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| Abstract: | Nickel(II) perchlorate and nitrate complexes containing dimethyl, di-n-propyl, di-n-butyl, di-i-butyl and di-t-butyl sulfoxides have been synthesized and characterized by IR and electronic spectroscopies, magnetic-susceptibility and electrolytic-conductance measurements. In the complexes containing perchlorate, the metal: sulfoxide molar ratio is 1:6 and the perchlorate groups are ionic. In the nitrate compounds, the molar ratio decreases from 1:6 to 1:2 according to the increase in the steric bulk of the alkyl group from methyl to t-butyl. The nitrate group may either be non-coordinating or behave as a monodentate or bidentate ligand. All the complexes contain O-bonded sulfoxide molecules and are characterized as high-spin, with an octahedral or distorted octahedral geometry. The dialkyl sulfoxides studied in this work fall in the same position as dimethyl sulfoxide in the spectrochemical and nephelauxetic series. Electrolytic conductivities suggest that the compounds containing ionic nitrate exhibit sulfoxide—nitrate exchange in nitromethane solutions. |
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