The Professor mourns the loss of his first PhD student - and recalls Steve Church's pioneering research into the molecule Manganese Pentacarbonyl. More info about Steve Church's work at http://periodicvideos.blogspot.com/2011/08/remembering-old-friend.html More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos