Applications are now available for the CENTC Undergraduate Summer Research Program. Undergraduate fellowships are available to conduct research at a choice of CENTC’s 13 locations during the summer of 2010. The program is 10 weeks long, running from June 14, 2010 through August 20, 2010. Fellows will receive a stipend and compensation for travel and housing. For more information and to download an application, visit:
http://depts.washington.edu/centc/education_ur.htm
Monday, November 16, 2009
Thursday, November 12, 2009
Melanie Sanford Receives BASF Catalysis Award 2009
Thursday, November 5, 2009
Karen Goldberg Interviewed by EarthSky
CENTC Director Karen Goldberg was interviewed by EarthSky recently on the topic of converting methane to methanol. You can listen here or read the transcript at EarthSky:
90 Second Interview
8 Minute Interview
http://www.earthsky.org/interviewpost/energy/karen-goldberg-trying-to-make-natural-gas-more-accessible-fuel-option
Related links:
CENTC Researchers Characterize Methane-Metal Complex
90 Second Interview
8 Minute Interview
http://www.earthsky.org/interviewpost/energy/karen-goldberg-trying-to-make-natural-gas-more-accessible-fuel-option
Related links:
CENTC Researchers Characterize Methane-Metal Complex
Monday, October 26, 2009
CENTC Researchers Characterize Methane-Metal Complex
CENTC researchers at the University of North Carolina and the University of Washington have described the first observation of a metal complex that binds methane in solution. The finding is reported in the October 23 issue of Science. The binding of methane to a metal complex is a key first step in the selective breaking of the C-H bond in methane. While the breaking of all four C-H bonds in methane is quite easy to do (think burning natural gas to heat your stove or house), breaking just one bond has proven to be quite difficult. A few metal catalysts are known to carry out this bond activation, but they have proved to be too slow, too inefficient or too expensive for widespread industrial use. The research reported in Science gives new insight into this bond activation process. This information should be useful in the quest to formulate other catalysts that may one day lead to the easy conversion of methane into other useful chemical feedstocks and fuels. The research is directly related to CENTC’s goal to utilize methane stranded in remote areas.
The Science report describes a σ-methane complex that is shown to be quite stable in solution. This report is the first observation and full characterization of a relatively long-lived σ-methane complex in solution. Nuclear magnetic resonance (NMR) spectra of the complex were obtained by protonation of a rhodium-methyl precursor at -110 °C. The complex is observed to rapidly tumble in the coordination sphere of rhodium, exchanging free and bound hydrogens. Density functional theory calculations indicate that the complex is best described as η2-C,H methane coordination to the metal.
The authors of the report are Wesley Bernskoetter, who participated in this project as a post-doctoral fellow with Maurice Brookhart at the University of North Carolina (he is now an Assistant Professor at Brown University),Cynthia Schauer, an Associate Professor at UNC, Karen Goldberg, a Professor at UW and Director of CENTC, and Maurice Brookhart, a Professor at UNC and a CENTC Principal Investigator.
Bernskoetter, Wesley H.; Schauer, Cynthia K.; Goldberg, Karen I.; Brookhart, Maurice “Characterization of a Rhodium(I) σ-Methane Complex in Solution” Science, 326 (5952), 2009, 553-556
DOI: 10.1126/science.1177485
Related links:
Read the Science paper
UNC press release
UW press release
RSC: Chemistry World Article
The Science report describes a σ-methane complex that is shown to be quite stable in solution. This report is the first observation and full characterization of a relatively long-lived σ-methane complex in solution. Nuclear magnetic resonance (NMR) spectra of the complex were obtained by protonation of a rhodium-methyl precursor at -110 °C. The complex is observed to rapidly tumble in the coordination sphere of rhodium, exchanging free and bound hydrogens. Density functional theory calculations indicate that the complex is best described as η2-C,H methane coordination to the metal.
Geometry optimized structure of 2-CH4+ at the PBE0/BS2 level.
Bernskoetter, Wesley H.; Schauer, Cynthia K.; Goldberg, Karen I.; Brookhart, Maurice “Characterization of a Rhodium(I) σ-Methane Complex in Solution” Science, 326 (5952), 2009, 553-556
DOI: 10.1126/science.1177485
Related links:
Read the Science paper
UNC press release
UW press release
RSC: Chemistry World Article
Monday, October 12, 2009
2009 CENTC Annual Meeting
The CENTC Annual Meeting took place in Seattle on September 14-15, 2009. It was attended by 68 attendees, including CENTC faculty collaborators, post-doctoral fellows, graduate students, undergraduates, staff, a NSF representative and Industrial Affiliates. Participants attended presentations and poster sessions on CENTC research and education and outreach efforts. CENTC researchers utilized the time to plan future research efforts, as well.
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