STRUCTURE OF NEW TRIDENTATE 2,6-BIS(IMINO)PYRIDYL RUTHENIUM(II) COMPLEXES WITH 2,3,6-TRIMETHYL BENZENAMINE LIGAND
J.K. Kim1, H. Yoo2
1 Samyang Genex Corporation
2 Department of Chemistry and Institute for Applied Chemistry
hyojong@hallym.ac.kr
Keywords: 2, 6-bis(imino)pyridyl ligand, ruthenium(II) complex, 2, 4, 6-trimethyl benzenamine ligand, trans arrangement of hydrogen and chloride ligands
Pages: 348-353
Abstract
New tridentate 2,6-bis(imino)pyridyl ruthenium(II) complexes, [N3]Ru(H)(Cl)(2,4,6-(CH3)3C6H2NH2) (4) and [N3]Ru(Cl)2(2,4,6-(CH3)3C6H2NH2) (5) ([N3] = 2,6-(2,4,6-(CH3)3C6H2N=CCH3)2C5H3N) have been synthesized and characterized. The crystal of complex 4, which has been grown in benzene/cyclohexane by evaporation at room temperature, was studied by X-ray diffraction. Complex 4 crystallizes in the monoclinic space group C2/c with cell parameters of a = 42.243(4) Å, b = 8.1480(5) Å, c = 23.662(2) Å, β = 117.998(1)°, V = 7191.1(10) Å3, and Z = 8. The molecular structure of 4 shows a six coordinate, pseudo-octahedral geometry with a trans arrangement of hydrogen and chloride ligands. The mesityl ligands are oriented approximately perpendicular to the 2,6-bis(imino)pyridyl ligand plane, and form a pocket surrounding the 2,4,6-trimethyl benzenamine ligand. The coordinated 2,4,6-trimethyl benzenamine (2,4,6-(CH3)3C6H2NH2) is in the cis to chloride and hydride, trans to pyridine ligand, and lies parallel to one of the mesityl rings.
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