Stephan, Douglas W.; Greenberg, Sharonna; Graham, Todd W.; Chase, Preston; Hastie, Jeff J.; Geier, Stephen J.; Farrell, Jeffrey M.; Brown, Christopher C.; Heiden, Zachariah M.; Welch, Gregory C.; Ullrich, Matthias Inorganic Chemistry, 2011 , vol. 50, # 24 p. 12338 - 12348