Synthesis and crystal structure of 1D 2,3-naphtho 15-crown-5 complex [Na(N15C5)]2[Ni(i-mnt)2] containing S•••C and S•••π interactions

The reaction of 2,3-naphtho-15-crown-5 (N15C5) with Na-2[Ni(i-mnt)(2)] [i-mn = 1,1-dicyanoethylene- 2,2-dithiolate] affords the title complex [Na(N15C5)](2)[Ni(i-mnt)(2)] ( 1), which is characterized by elemental analysis, FT-IR, UV-visible spectra and single crystal X-ray diffraction. 1 crystallizes in the triclinic, space group P (1) over bar with a = 8.291( 4), b = 12.833( 7), c = 12.913( 6) angstrom, alpha = 115.732( 7), beta = 105.030( 7), gamma = 90.912( 8)degrees, V = 1182.2( 10) angstrom(3), Z = 1 and R-1(wR(2)) = 0.0422(0.1001). The single crystal X-ray analysis shows that the [Na( N15C5)](+) complex cations act as the bridges linking the [Ni(i-mnt)(2)](2-) anions into a 1D infinite chain through Na-N interactions and S center dot center dot center dot C and S center dot center dot center dot pi interactions are observed in the chain with the shortest S center dot center dot center dot C distance of 3.433 angstrom.