Ha‐Jin Lee, D. Noh
Feb 28, 2000
Citations
0
Influential Citations
11
Citations
Journal
Polyhedron
Abstract
Abstract Nickel bisdithiolene complexes Cx[Ni(dphdt)2] (x=1 or 0.1, C=tetrabutylammonium (n-Bu4N+); x=1, C=tetraphenylphosphonium (Ph4P+); dphdt=5,6-diphenyl-1,4-dithiin-2,3-dithiolate) have been synthesized and characterized. The molecular structure of (Ph4P)[Ni(dphdt)2](CH2Cl2) was determined by X-ray analysis. Ni(S2C2S2)2 core is planar and stacking along the c-axis and the shortest intra-stack S⋯S distance is 4.529 A. According to the cyclic voltammetry of (n-Bu4N)[Ni(dphdt)2], two phenyl groups on the dphdt ligand decrease the electron density on the Ni(S2C2S2)2 core and increase the oxidation potentials compared to those of the (n-Bu4N)[Ni(dddt)2] complex (dddt=5,6-dihydro-1,4-dithiin-2,3-dithiolate). Near-IR spectra of the complexes show that phenyl substitution on the ligand does not give rise to the evident change in transition energy due to the lack of coplanarity with the Ni(S2C2S2)2 core.