2010年5月
Triple-Stranded Metallo-Helicates Addressable as Lloyd's Electron Spin Qubits
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- 巻
- 132
- 号
- 20
- 開始ページ
- 6944
- 終了ページ
- +
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ja102030w
- 出版者・発行元
- AMER CHEMICAL SOC
We have first achieved the synthesis of triple-stranded metallo-helicates composed of 4,4':2',2 '':4 '',4 '''-quaterimidazole (Qim) and Mn(II) or Zn(II) ions, which serve as synthetic electron spin qubits (quantum bits). In the crystal structure, a hydrogen-bonding network through counteranions and/or crystal solvents was constructed by the outward N-H hydrogen-bonding functional groups intrinsic to the imidazole skeleton. Importantly, these helicates showed high stability even in a solution state at room temperature. These salient features of triple helicates of Qim are different from those of reported metallo-helicates. These chemical properties of the Qim-based triple helicates allow us to synthesize magnetically diluted single crystals composed of Mn(II) (S = 5/2) and diamagnetic Zn(II) complexes of Qim in an appropriate Mn(II)/Zn(II) ratio. The magnetically diluted crystals can afford to build up the prototype of electron-spin qubits of Lloyd's one-dimensional periodic system, which gives a practical approach to scalable quantum computers/quantum information processing systems (QCs/QIPSs). The experiments have proven the practical capability of oligo(imidazole)s as a component of Lloyd's system which has nonequivalent g-tensors within the helicate (g-engineering). The helical symmetry plays an important role in giving a prototype of the synthetic spin qubits of the formidable Lloyd model. This result links supramolecular chemistry to the field of QCs/QIPSs.
- リンク情報
- ID情報
-
- DOI : 10.1021/ja102030w
- ISSN : 0002-7863
- Web of Science ID : WOS:000277999700034