One-dimensional metal string complexes

The metal string complexes with different metal ions and various lengths have been successfully synthesized and structurally characterized. The crystal and molecular structure of nonanickel complex [Ni₉(μ₉-(peptea)₄Cl₂] which is the longest metal string at this moment will be reported. Crystal data for [Ni₉(μ₉-(peptea)₄Cl₂](C₂H₄Cl₂)₁₀: Space group, monoclinic C 2/c, a = 27.0453(6), b = 42.6678(5), c = 37.4268(6) angstroms, β = 109.539(1)°, V = 40702(1) angstroms³, Z = 12, R_F = 12% for the observed reflections (I>2σ(I)). The band structure calculation of infinite one-dimensional metal chains of Ni^II and Cr^II based on the structure of nonanickel complex will be presented. Finally, the metal string complexes [M_n^IIL₄X₂] will be chemisorbed on the Ag or Au surface and the potential application of these complexes as a molecular metal wire will be demonstrated.