Complex Formation of 1,6-Anhydro-β-Maltose and Sodium Ions Using Single-Crystal X-Ray Crystallography and NMR Spectroscopy

نویسندگان

  • Takashi Fujimoto
  • Daisuke Miura
  • Takayuki Kato
  • Osamu Kamo
  • Yuichi Shimoikeda
  • Tomoya Machinami
  • Mitsuru Tashiro
چکیده

Complex formation of 1,6-anhydro-β-maltose and sodium ions was characterized using single-crystal X-ray crystallography and solutionand solid-state NMR spectroscopy. The 7-coordination structure, comprising two 1,6-anhydroβ-maltoses, a thiocyanate ion and a sodium ion, was identified in the crystal of the complex, where a sodium ion was positioned in the center of the pentagon. In the NMR study, the line broadening of Na signals and the decrease of the spin-lattice relaxation times (T1) of Na were observed in CD3OD in the presence of 1,6-anhydro-β-maltose, indicating complex formation.

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تاریخ انتشار 2013