Syntheses, structures and electrochemistry of two complexes containing quadruply bonded dimolybdenum atoms
Document Type
Article
Publication Date
2-20-2002
Abstract
The syntheses, electrochemistry and structures of Mo2(O2CCH2-p-C6H4OH) 4, (1.2THF), and Mo2(O2CC(OH)(C6H5)2) 4, (2.4THF), as determined by single-crystal X-ray diffraction, are reported. Both molecules crystallized with two axially coordinated THF molecules and 2 contained two additional THF molecules hydrogen bonded to two of the OH groups on the benzilato ligands. Complex 1 crystallized in an extended geometric arrangement involving hydrogen bonds between layers of molecules. The Mo-Mo distance in 1 at 2.0972(8) Å is shorter than that in 2 at 2.1044(10) Å. There was also a large difference in the oxidation potentials of these two compounds with 1 and 2 exhibiting E1/2 (ox) of 526 and 820 mV, respectively. These effects are attributed to differences in the electron donation ability in the ligands (p-hydroxy phenylacetic and benzilic acids) as assessed by their pKa values. © 2002 Elsevier Science B.V. All rights reserved.
Publication Title
Inorganica Chimica Acta
Recommended Citation
Liwporncharoenvong, T.,
Lu, T.,
&
Luck, R.
(2002).
Syntheses, structures and electrochemistry of two complexes containing quadruply bonded dimolybdenum atoms.
Inorganica Chimica Acta,
329(1), 51-58.
http://doi.org/10.1016/S0020-1693(01)00796-4
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7277