Synthesis, Characterization and Crystal Structures of some Half-sandwich Ruthenium(II) Complexes of 1,4,7-Trimethyl-1,4,7-triazacyclononane containing ?-Acidic Ancillary Ligands

DOI: 10.1039/DT9950002955

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2955 - 2960 (1995)

Update date:2022-07-29

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Authors:

Yang, San-Ming

Cheng, Wing-Chi

Peng, Shie-Ming

Cheung, Kung-Kai

Che, Chi-Ming

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Article abstract of DOI:10.1039/DT9950002955

The synthesis of a series of ruthenium(II) complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane L of type (+) containing H, O2CCF3, CO, PPh3, dppe <1,2-bis(diphenylphosphino)ethane> or 2,6-Me2C6H3N<*>C as auxiliary ligands are described where X = Y = CO, Z = Cl 1; X, Y = dppe, Z = Cl 2; X, Y = dppe, Z = H 3; X = CO, Y = PPh3, Z = 4; X = Y = 2,6-Me2C6H3N<*>C, Z = O2CCF3 5.All complexes were characterized by spectroscopic methods.The crystal structures of 1 and 4 as PF6(-) salts have been determined.The two CO groups in complex 1 are in cis-fashion with a OC-Ru-CO angle of 90.1(3) deg and the Ru-C distances are 1.850(6) and 1.893(6) Angstroem.Complex 4 features one of the few ruthenium complexes containing three different piano-stool ligands, namely, CO, PPh3 and H.The measured Ru-CO and Ru-H distances in 4 are 1.785(9) and 1.54(9) Angstroem respectively.

Full text of DOI:10.1039/DT9950002955

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