Structures of [M_2(dimen)_4](Y)_2 (M = Rh, Ir; dimen = 1,8-Diisocyanomenthane; Y = PF_6, Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, B(C_6H_5)_4) Crystals Featuring an Exceptionally Wide Range of Metal−Metal Distances and Dihedral Twist Angles
Abstract
The binuclear complexes [M_2(dimen)_4](Y)_2 (M = Rh, Ir; dimen = 1,8-diisocyanomenthane; Y = PF_6, tetrakis[3,5-bis(trifluoromethyl)phenyl]borate), and B(C_6H_5)_4) have face-to-face structures with M−M distances between 3.60 and 4.48 Å, and square-planar unit twist angles between 0 and 17.2°. Ligand flexing and out-of-plane bending of the metal centers accommodate M−M distances longer than 3.9 Å; addition of a torsional deformation produces a twisted conformation for shorter M−M distances (<3.9 Å). Spectroscopic data indicate that there are two or more deformational isomers of Ir_2(dimen)_4^(2+) in solution.
Additional Information
© 1996 American Chemical Society. Received July 7, 1995. Work at the University of Minnesota and the California Institute of Technology was supported by the National Science Foundation. We thank Johnson Matthey for generous loans of rhodium trichloride and iridium trichloride.Attached Files
Supplemental Material - ic549.pdf
Supplemental Material - ic549a.pdf
Supplemental Material - ic549b.pdf
Supplemental Material - ic549c.pdf
Supplemental Material - ic549d.pdf
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Additional details
- Alternative title
- Structures of [M2(dimen)4](Y)2 (M = Rh, Ir; dimen = 1,8-Diisocyanomenthane; Y = PF6, Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, B(C6H5)4) Crystals Featuring an Exceptionally Wide Range of Metal−Metal Distances and Dihedral Twist Angles
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- 86636
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- CaltechAUTHORS:20180525-134636164
- NSF
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2018-05-25Created from EPrint's datestamp field
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2021-11-15Created from EPrint's last_modified field