New mixed tellurides of nickel and Group 13-14 metals Ni3-delta MTe2 (M=Sn, In, Ga)

作者：Litvinenko O N; Kuznetsov A N^*; Olenev A V; Popovkin B A

来源：Russian Chemical Bulletin, 2007, 56(10): 1945-1947.

DOI：10.1007/s11172-007-0301-z

• low-dimensional phases
• layered phases
• nickel-main group metal bonds
• nickel subvalent tellurides

Three new mixed tellurides of nickel and group 13-14 metals Ni3-delta MTe2 (M = Sn, In, Ga) were prepared by high-temperature ampoule synthesis and studied by powder X-ray diffraction analysis. The compound Ni3-delta SnTe2 was also studied by single crystal X-ray diffraction analysis. The structural model of this phase and two analogs was described as consisting of layers with nickel-main group metal bonds confined from the above by tellurium atoms. The van der Waals gap formed through contacts between the tellurium atoms of neighboring layers is partially occupied by nickel atoms.

• 出版日期2007-10