Structural and spectroscopic characterization of a paramagnetic isocyanide complex of rhodium(II)

DOI: 10.1021/om00040a002

Source and publish data:

Organometallics p. 1431 - 1433 (1992)

Update date:2022-08-02

Topics:

Authors:

Dunbar, Kim R.

Haefner, Steven C.

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Article abstract of DOI:10.1021/om00040a002

The remarkably stable paramagnetic Rh(II) complex [Rh(η³-TMPP)₂][BF₄]₂ (TMPP = tris(2,4,6-trimethoxyphenyl)phosphine) reacts with 2 equiv of tert-butyl isocyanide to yield the air-stable mononuctear Rh(II) complex [Rh(η³-TMPP)₂(CNBu^t)₂][BF ₄]₂. A single-crystal X-ray diffraction study reveals that the cation adopts a distorted-square-planar geometry in which the phosphine ligands are trans rather than cis as in the parent complex. The paramagnetism of this unusual four-coordinate Rh(II) metallo radical was probed by a variety of spectroscopic and magnetic techniques.

Full text of DOI:10.1021/om00040a002

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