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Title: Formation of a Manganese Tricarbonyl on the MgO Surface from Mn[subscript 2](CO)[subscript 10]: Characterization by Infrared, Electron Paramagnetic Resonance, and X-ray Absorption Spectroscopies

Abstract

The goal of this work was to prepare structurally well-defined manganese complexes on high-area MgO powder by vapor deposition of Mn{sub 2}(CO){sub 10}. The supported species were characterized by infrared (IR), electron paramagnetic resonance (EPR), and X-ray absorption spectroscopies. The results show that when the manganese loading of the sample was 3.0 wt %, most of the Mn{sub 2}(CO){sub 10} was physisorbed, but when the loadings were less, chemisorbed species predominated, being formed by adsorption of Mn{sub 2}(CO){sub 10} on hydroxyl groups on the MgO surface. Treatment of samples containing 1.0 wt % Mn with O{sub 2} at room temperature resulted in oxidation of the manganese and the formation of surface species that are well represented as the d{sup 4} complex Mn(CO){sub 3}(Os){sub 3} (where O{sub s} is surface oxygen of MgO), as indicated by IR and extended X-ray absorption fine structure (EXAFS) spectra. The EXAFS data show Mn-C, C{triple_bond}O, and Mn-O{sub s} bond lengths as 1.90, 1.43, and 1.98 {angstrom}, respectively.

Authors:
; ; ; ; ;  [1];  [2]
  1. (Suranaree)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1002917
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Phys. Chem. C; Journal Volume: 114; Journal Issue: (40) ; 10, 2010
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; ADSORPTION; BOND LENGTHS; DEPOSITION; ELECTRON SPIN RESONANCE; FINE STRUCTURE; MANGANESE; MANGANESE COMPLEXES; OXIDATION; OXYGEN; SPECTRA

Citation Formats

Khabuanchalad, Supattra, Wittayakun, Jatuporn, Lobo-Lapidus, Rodrigo J., Stoll, Stefan, Britt, R. David, Gates, Bruce C., and UCD). Formation of a Manganese Tricarbonyl on the MgO Surface from Mn[subscript 2](CO)[subscript 10]: Characterization by Infrared, Electron Paramagnetic Resonance, and X-ray Absorption Spectroscopies. United States: N. p., 2010. Web. doi:10.1021/jp104205q.
Khabuanchalad, Supattra, Wittayakun, Jatuporn, Lobo-Lapidus, Rodrigo J., Stoll, Stefan, Britt, R. David, Gates, Bruce C., & UCD). Formation of a Manganese Tricarbonyl on the MgO Surface from Mn[subscript 2](CO)[subscript 10]: Characterization by Infrared, Electron Paramagnetic Resonance, and X-ray Absorption Spectroscopies. United States. doi:10.1021/jp104205q.
Khabuanchalad, Supattra, Wittayakun, Jatuporn, Lobo-Lapidus, Rodrigo J., Stoll, Stefan, Britt, R. David, Gates, Bruce C., and UCD). 2010. "Formation of a Manganese Tricarbonyl on the MgO Surface from Mn[subscript 2](CO)[subscript 10]: Characterization by Infrared, Electron Paramagnetic Resonance, and X-ray Absorption Spectroscopies". United States. doi:10.1021/jp104205q.
@article{osti_1002917,
title = {Formation of a Manganese Tricarbonyl on the MgO Surface from Mn[subscript 2](CO)[subscript 10]: Characterization by Infrared, Electron Paramagnetic Resonance, and X-ray Absorption Spectroscopies},
author = {Khabuanchalad, Supattra and Wittayakun, Jatuporn and Lobo-Lapidus, Rodrigo J. and Stoll, Stefan and Britt, R. David and Gates, Bruce C. and UCD)},
abstractNote = {The goal of this work was to prepare structurally well-defined manganese complexes on high-area MgO powder by vapor deposition of Mn{sub 2}(CO){sub 10}. The supported species were characterized by infrared (IR), electron paramagnetic resonance (EPR), and X-ray absorption spectroscopies. The results show that when the manganese loading of the sample was 3.0 wt %, most of the Mn{sub 2}(CO){sub 10} was physisorbed, but when the loadings were less, chemisorbed species predominated, being formed by adsorption of Mn{sub 2}(CO){sub 10} on hydroxyl groups on the MgO surface. Treatment of samples containing 1.0 wt % Mn with O{sub 2} at room temperature resulted in oxidation of the manganese and the formation of surface species that are well represented as the d{sup 4} complex Mn(CO){sub 3}(Os){sub 3} (where O{sub s} is surface oxygen of MgO), as indicated by IR and extended X-ray absorption fine structure (EXAFS) spectra. The EXAFS data show Mn-C, C{triple_bond}O, and Mn-O{sub s} bond lengths as 1.90, 1.43, and 1.98 {angstrom}, respectively.},
doi = {10.1021/jp104205q},
journal = {J. Phys. Chem. C},
number = (40) ; 10, 2010,
volume = 114,
place = {United States},
year = 2010,
month =
}