Clifford Chance (CC) has advised longstanding client Barclays on its purchase of a $1.75bn (£1bn) chunk of collapsed investment bank Lehman Brothers.

CC, which had been advising Barclays on its abandoned bid to acquire Lehman outright, fielded a team lead by corporate partner Guy Norman, with corporate partner Patrick Sarch, regulatory partner Chris Bates, restructuring partner Nick Frome and capital markets partner Ed Bradley assisting.