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Transition-Metal Complexes With Sulfur-Containing Ligands
Abstract
Interest in the preparation of sulfur monoxide (SO) complexes is related to the fact that it is effectively isoelectronic with 02 and disulfur (S2). Molecular oxygen is a non-polar diradical in the ground state and as such has been shown to bond to transition metals in one of two ways (without 0-0 cleavage).In (I) the O2 group was sigma bonded to the metals, in (II) the O2 group was pi bonded to the metal. 3,4 1,2 while Iridium and rhodium have been shown to pi bond to 02 in IrCl (02) (CO)- 4 4 (PPh3)2, [IrO2 (diphos)2] C1, and [RhO2(diphos)2] C1." [IrO2(diphos)2]C1, The complexes which have been shown to have the oxygens sigma bonded were cobalt complexes. 1,2 However, the bonding of oxygen to iron in oxyhemoglobin still remains a mystery and may reveal a new mode of bonding in complexes of this type. Disulfur bonds linearly (c.f. I) and has also been found to bond in a pi fashion in IrS2 (diphos), Cl (c.f. II). Analogous to 02, S2 was shown to be a diradical in the ground state (g).5
Subject Area
Inorganic chemistry|Chemistry
Recommended Citation
WATKINS, DARRELL DWIGHT, "Transition-Metal Complexes With Sulfur-Containing Ligands" (1973). ETD collection for University of Nebraska-Lincoln. AAI7413028.
https://digitalcommons.unl.edu/dissertations/AAI7413028