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Nickel(II) Complexes with Tripodal Ligands: Synthesis, X-Ray Structural and Spectroscopic Studies

DOI: 10.1039/DT9920002417

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2417 - 2422 (1992)

Update date:2022-09-26

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Authors:

Ragunathan, Kaliappa G.Ragunathan, Kaliappa G.

Bharadwaj, Parimal K.Bharadwaj, Parimal K.

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Article abstract of DOI:10.1039/DT9920002417

The synthesis, X-ray crystal structures and electronic spectra of two nickel complexes with tripodal ligands are reported.The nickel(II) complex, 1(ClO4)>ClO4, with the ligand, tris<<2-(2-aminophenyl)thio>ethyl>amine L1 crystallizes as purple rectangular parallelopipeds in the monoclinic space group P21/a with a = 9.542(7), b = 28.231(13), c = 11.136(7) Angstroem, β = 91.50(6) deg, Z = 4, R = 0.058 and R'= 0.067 for 2782 reflections.The Ni atom is bound equatorially to two S and two N atoms from arms of the tripod while the two axial positions are occupied by the bridgehead nitrogen and an oxygen from a perchlorate.The complex 2>2 with the ligand tris<<2-(2-aminoethyl)thio>ethyl>amine L2 crystallizes as blue prisms in the monoclinic space group P21/n with a = 11.7923(9), b = 16.813(2), c = 12.716(1) Angstroem, β = 109.567(7) deg, Z = 4, R = 0.039 and R'= 0.060 for 3354 reflections.All the three arms of the ligand are bound to the Ni(II) providing a distorted-octahedral S3N3 donor set.Solution elctronic spectra (in acetonitrile, dimethylformamide or dimethyl sulfoxide) of 2>2 indicate retention of the solid-state structure, whereas for 1(ClO4)>ClO4 bound perchlorate is released in acetonitrile and replaced by solvent.

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Product name:tris<<2-(2-aminophenyl)thio>ethyl>amine

Cas No:144092-34-2

144092-34-2

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